Answer:
a. manipulated independent variable
Explanation:
The critical versus neutral comments to the students are the manipulated independent variable. The manipulated independent variable is the variable the researcher has influence on, he can change and manipulate in a study, the researcher can decide to increase or reduce the variable. the dependent variable is affected by it.
The criticism versus neutral comments in Dr. Mary Contrary's study is a manipulated independent variable, used to determine its effect on the students' angry feelings as measured by the Angry Mood Test.
Explanation:The part of Dr. Mary Contrary's experiment where half of the students receive criticism and half receive neutral comments is an example of a manipulated independent variable. In this context, independent variables are those that are controlled and manipulated by the researcher to observe their effect on a dependent variable. The criticism or neutral comments are therefore the factor being changed to see how it affects the students' scores on the Angry Mood Test, which would be the measured dependent variable in this experiment.
Crafting a message to generate a specific response from an audience requires the use of what type of information?
Answer:
D) Clear
Explanation:
Crafting a message to generate specific response from an audience requires the use of clear information. It is necessary to state what you want from or can do for your audience in clear terms.
Question 12 (5 points)
On what two fronts was WWII fought?
a) Europe and Africa
Ob) Africa and Asia
OC) Europe and the Pacific
d) The Pacific and Russia
Answer:
The answer is Europe and the Pacific
Explanation:
The World War II was the largest conflict that human beings have ever known. It is a war that involved tens of millions of soldiers and fighters around the world. It was during this fight that there were two major fronts of war that took place on two geographically separate fronts. The first front happened in Europe and East Germany and there was also fighting going on in the pacific against Japan. The Pacific front happened after the Japanese army attacked the Pearl Harbor. The European front is famously known for the Holocaust and concentration camps against the Jews and America had to step in and involve themselves in this war.
A man attends a public protest and burns an American flag at the event. Members of the public, offended by his action, sue him for his treatment of the flag, saying that this type of behavior is offensive and unacceptable in the public square. What right is at issue in this case?
a) Freedom of assembly
b) Freedom of the press
c) Freedom of speech
C) Freedom of speech is at issue in this case.
Explanation:
Freedom of speech is one of the fundamental rights of human. Freedom of speech offers freedom to the individual or public to express their views, opinions and ideas without fear.
Everybody have rights to express their ideas and information in-spite of government restrictions. "First Amendment" laid by the constitution of Unites States of America in the year 1789 gives the people the freedom of speech.
In the above scenario, a man burns the American flag. His activity was offensive and unacceptable in the public square.
Judging by the Berlin factory rules, what were the differences between preindustrial and industrial work routines?
Answer:
Judging by the Berlin factory rules, workers are allowed room for mistakes under the preindustrial work routine. For instance, under the industrial work routine a worker is never allowed to be absent of late else their pay will be deducted, but preindustrial work routines allowed for some exceptions. Furthermore, preindustrial work routines allowed activities like smoking, taking days off, leaving before close of business, and increase eating hour. The mode of punishment when rules were broken were also harsher during the industrial work routine than preindustrial work routine.
Explanation:
Judging by the Berlin factory rules, workers are allowed room for mistakes under the preindustrial work routine. For instance, under the industrial work routine a worker is never allowed to be absent of late else their pay will be deducted, but preindustrial work routines allowed for some exceptions. Furthermore, preindustrial work routines allowed activities like smoking, taking days off, leaving before close of business, and increase eating hour. The mode of punishment when rules were broken were also harsher during the industrial work routine than preindustrial work routine.
Final answer:
Labor transitioned from skilled artisans and farmers with control over their work life to factory workers with highly regulated routines during the Industrial Revolution. Factory conditions involved long hours, repetitive tasks, strict schedules, and little autonomy. The concept of regimented wage labor emerged as a key characteristic of industrial society.
Explanation:
The transition from preindustrial to industrial work routines marked a profound shift in labor dynamics and work conditions. Before the Industrial Revolution, most production was carried out in homes or small workshops, where workers, often skilled artisans or farmers, had substantial control over their work. They decided when to start and end their workdays, when to take breaks, what tasks to perform, and how much to produce.
With the advent of the Industrial Revolution, production moved to factories where the work became highly regimented. Workers had to report at fixed times, perform repetitive tasks for long hours without flexibility in starting or ending their workday, and had break times strictly scheduled. Late arrival could result in pay docking and potentially result in dismissal. Factories enforced a level of productivity that had to be met, and the work environment could often be dangerous and detrimental to workers' health. The nature of factory work was a stark contrast to the relative autonomy that workers enjoyed in preindustrial societies.
Regimented wage labor became a defining feature of industrial society, with labor being supervised and productivity being enforced by managers or factory owners. This represented a loss of control for workers over their work conditions and a fundamental change in their relationship with their labor.
Theorists who promote classical conditioning believe that learned behavior is the result of _____, whereas theorists who promote operant conditioning believe that learned behavior is the result of _____.
Answer:
The association between one stimulus and another
past reinforcement
Explanation:
Both classical conditioning and operant conditioning have an influence on the behavioral school of psychology, which believes that the environment shapes the behavior of an individual. While classical conditioning involves the association of neutral stimulus with conditioned stimulus result in a desired behavior, operant conditioning involves learning occurs through rewards and punishments that work as reinforcement for a particular behavior.
Classical conditioning involves the association between a natural biological response and a new stimulus, leading to involuntary behavior, while operant conditioning involves learning from the consequences of voluntary actions.
Theorists who promote classical conditioning believe that learned behavior is the result of associations between a specific stimulus and a natural biological response. This type of learning involves involuntary reflexive responses where the organism begins to respond to a new signal in the way it would to a natural stimulus. For instance, a dog salivating at the sound of a bell because it has been conditioned to associate that sound with the arrival of food exemplifies classical conditioning.
On the other hand, theorists who support operant conditioning assert that learned behavior is the result of the consequences of voluntary behavior. In operant conditioning, the organism learns to engage in new or different actions based on whether those actions are followed by rewards or punishments. An example of operant conditioning is a rat learning to press a lever because doing so results in the delivery of food.
Therefore, the correct answer to the student's question is: Theorists who promote classical conditioning believe that learned behavior is the result of associations with natural biological responses, whereas theorists who promote operant conditioning believe that learned behavior is the result of consequences from voluntary behaviors.
A state passed a statute that provided for direct reimbursement from public funds to nonpublic schools, including religious schools, of the cost of performing various testing services required of all schools by state law. The three state-prepared tests involved consisted of a student evaluation test, a comprehensive achievement test, and scholarship and college qualification tests. The law also provided for payment to the nonpublic schools for the grading of the tests, which are graded objectively. On review by the Supreme Court, what is the likely result?
Answer:
On review by the Supreme Court, the most likely result would be that the Supreme Court would term the statute as unconstitutional by citing the First Amendment to the Constitution.
Explanation:
The First Amendment to the Constitution clearly states that Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof. Hence, owing to the provision made in the statute to fund religious institutions along with other institutions, the Supreme court would deem the statute to be unconstitutional stating that the provisions done through the First Amendment are breached by the statute.Final answer:
The Supreme Court is likely to assess the statute concerning government reimbursement to religious schools for testing using the Lemon Test, focusing particularly on whether it causes excessive government entanglement with religion. As reimbursements are for objective, secular testing services, the statute may meet the necessary criteria to be upheld as constitutional.
Explanation:
Supreme Court's Decision on State Statutes Funding Nonpublic Schools
The question at hand revolves around a statute permitting direct reimbursement from public funds to nonpublic schools, including religious schools, for various required testing services. According to the Supreme Court's precedent, specifically the Lemon v. Kurtzman case, this matter is subject to the Lemon Test to determine its constitutionality. The reimbursement for testing services has a clear secular purpose and likely does not advance nor inhibit religion, meeting two prongs of the Lemon Test. However, the critical aspect is whether the law leads to excessive government entanglement with religious organizations. As the testing services in question are objective and pertain strictly to secular educational purposes, the reimbursement for grading these services is less likely to lead to entanglement compared to facilities or teacher salaries funding, which would require stricter government oversight to ensure separation between religious and secular use.
Similar instances, such as the Agostini v. Felton case, demonstrate that government aid can be used in religious schools to teach secular subjects, suggesting the potential for a compatible relationship between government funding and religious schools provided there's no excessive entanglement. Therefore, the statute's constitutionality is likely to be upheld if the Supreme Court finds no excessive entanglement with religious practice occurs through the implementation of direct testing service reimbursements.
Which of the following is a criticism of the use of criminal background checks and credit reports in the selection process? Group of answer choices1. It reduces instances of a glass ceiling.2. It leads to an increase in the number of status-blind employment decisions. 3. It often results in a disparate impact of minority applicants.4. It is merely an indicator of the past and not a predictor of the future.
Answer:
3. It often results in a disparate impact of minority applicants.
Explanation:
The use of criminal background checks and credit report in the selection process is criticized because it often results in a disparate impact of minority applicants. Due to the fact that minority groups such as African Americans tends to have higher crime rates and are more likely to be credit unworthy, there is a tendency for them to be intentionally discriminated on in regards to criminal background checks and credit reports compared to their white counterparts when applying for a job, Criminal record checks may not be considered seriously when a Caucasian is being considered for that same job.
Using criminal background checks and credit reports in job selection can lead to disparate impact on minority groups as these groups are overrepresented in criminal data. These measures are not necessarily a predictor of future job performance, and their use can overlook potential candidates.
Explanation:Criticisms of the use of criminal background checks and credit reports in the hiring process often revolve around potential for discrimination and unfair impact on minority applicants. Indeed, both of these selection tools can disproportionately disadvantage certain groups, leading to what is known as a disparate impact. For instance, minority groups are often overrepresented in criminal data, and the use of these reports in hiring can reinforce systemic barriers to employment for these individuals. This is despite the fact that a criminal record or a poor credit score is not necessarily a predictor of future job performance.
Additionally, relying on these measures as a primary determination of a candidate's suitability fails to consider the individual's potential for growth, rehabilitation, or the circumstances surrounding their past mistakes. Thus, solely relying on these measures for hiring decisions can overlook potentially skilled and qualifying candidates.
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At first Baby Madeline is interested in the mobile her mother hangs from her crib. Then she becomes bored; she fidgets and looks around. Madeline is experiencing _____, the predictable loss of interest that develops once a stimulus becomes familiar.
Baby Madeline is experiencing habituation, the loss of interest due to repeated exposure to a stimulus. Habituation helps researchers understand babies' memory and cognitive development. It is also associated with other developmental milestones such as object permanence and stranger anxiety.
Baby Madeline is experiencing habituation, which is the predictable loss of interest that occurs when a stimulus becomes familiar through repeated exposure. Habituation is a concept used in cognitive development to understand how infants and other organisms respond to their environment. In the context of developmental psychology, habituation allows researchers to determine what babies can remember and understand by measuring their responsiveness to repeated stimuli. Over time, as the stimulus becomes familiar and deemed inconsequential, the individual's attention to it diminishes.
This decreased responsiveness is an important aspect of cognitive development and is correlated with other developmental milestones such as the development of object permanence and the onset of stranger anxiety. As babies develop, they also engage more actively with the world around them, endeavoring to continue any pleasing event and interact with their environment, indicating their cognitive advancement.
What is the pre-designation of some quantity of a measured attribute or characteristic that must be achieved for a predetermined action to take place?
Answer: Action Standard
Explanation:
Action Standard is the pre-designation of some quantity of a measured attribute or characteristic that must be achieved for a predetermined action to take place. It also entails making important decisions before you collect information, and they serve as clear guidelines for action once the data have been collected.
During the winter Olympics, a skier had a terrible fall. The observers all cringed. It was as if they had fallen themselves and were able to feel the pain of the fallen athlete. According to the biological basis of observational learning, the action of ______________ might underpin the observers' behavior.
Answer:
Mirror neurons.
Explanation:
As the exercise describes, a common phenomenon is to feel, as an observer, the pain of a fallen athlete, for example. According to the biological basis of observational learning, the action of mirror neurons might underpin the observers' behavior. As their name suggests, the mirror neuron mimics, mirrors the behaviors of others. In this case, as said before, the obvserver would mimic the pain from the fall, but it could very well be the emotion from witnessing an emotional moment such as a proposal of marriage, a birthday, a hug, etc.
A group of teenagers watch an older couple walk slowly by and laugh about how much smarter and more fun their generation is when compared to older groups. This is an example of:____________
Answer: Ethnocentrism
Explanation:
Ethnocentrism is the review of other cultures in regard to preconceptions relating to standards and customs of one's own culture.
This was the teenagers view of the old men
A state statute mandates that the statute of limitations for a negligence lawsuit is two years and the plaintiff is barred from filing the suit if he or she files after that time. This statute is an example of a
Answer:
Procedural law.
Explanation:
As the exercise describes, a state statute mandates that the statute of limitations for a negligence lawsuit is two years and the plaintiff is barred from filing the suit if he or she files after that time is an example of a procedural law. This kind of laws are meant to ensure a fair and consistent application of the due process.
Your learned evaluative appraisals about yourself and others (whether positive or negative) are called A) attitudes. B) values. C) beliefs. D) personal constructs. E) self-verifications.
Answer:
A) attitudes.
Explanation:
Attitude is a norm of procedure that leads to a certain behavior. It is the realization of an intention or purpose. In Social Studies, attitude consists of a system of values and beliefs, with certain stability over time, of an individual or group that predisposes him to feel and react in a certain way to given stimuli. Often, the attitude is associated with a group or even gender. For example, certain behavior can be classified as a female attitude or a male attitude.
Sportsfield Inc. files a suit against Tailgate Services. Before the trial, during the jury selection process, Sports Fields attorney asks, without providing any reason, that one of the potential jurors not be sworn in. This is________
Answer:
This is a peremptory challenge
Explanation:
A peremptory challenge can be explained as a right of an attorneys in jury selection to reject a potential juror before the beginning of the trial without stating a reason.
The situation describes a peremptory challenge, which is an unexplained rejection of a potential juror by an attorney during jury selection.
Explanation:The tactic mentioned here is a legal procedure known as a peremptory challenge. A peremptory challenge is a right in jury selection for the attorneys to reject a certain number of potential jurors without stating a reason. To use this method, the attorney simply asserts the challenge and the potential juror is excused. It's worth noting that this right is limited and the number of peremptory challenges differs from jurisdiction to jurisdiction. They cannot be used for illegal discrimination, such as dismissing a potential juror based solely on their race or gender.
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What term describes the Supreme Court's right to declare the actions of the other branches of government null and void if they are contrary to the Constitution?
Answer:
Judicial review
Explanation:
Judicial review can be referred to as the power of the court, according to which they can nullify the acts of other branches of government. If the court finds certain laws that violate the rights and liberties that are constitutionalized, they have the power according to judicial review to make those laws unenforceable. Judicial Review was proposed by Alexander Hamilton in Federalist paper 78.
For example, if the court finds that a bill is created in which rights, liberties or equality of a certain group of people is violated, they will nullify the laws.
why do homes in Iran have no furniture?
Iranian homes typically do have furniture, but styles can vary and include traditional Persian furnishings like low sofas and takhts. The perception of no furniture might stem from unfamiliarity with cultural practices or minimalist modern styles, but it is not accurate to say Iranian homes have no furniture.
Explanation:The assertion that homes in Iran have no furniture is incorrect. Like any country, furnishing styles and practices can vary significantly depending on personal preference, cultural norms, and economic status. Many Iranian homes are indeed furnished, but some might use traditional Persian furniture, which is usually lower to the ground and may include sit-down style sofas and takhts, a type of platform used for seating or sleeping covered with fine textiles. In contrast to Western furniture, which is typically taller and includes sofas and chairs with legs, these styles may make a room appear to be less 'furnished' to those unfamiliar with the culture. Additionally, the minimalist approach in some modern homes can sometimes give the impression of sparsity as a style choice rather than an absence of furniture.
It's important to recognize that depictions in media or stereotypes do not represent all realities, and there's a wide variance across different households. Iran's rich culture and taste can be reflected in the beautiful and intricate designs of its interior decor. However, suggesting that all homes in Iran lack furniture is an oversimplification and not accurate.
Money received by a property manager must be deposited within __________ days and money received as earnest money in a real estate transaction must be deposited within __________ days after contracted has been accepted.
Answer:
5, 3
Explanation:
The law requires the property manager to deposit money received by him for property management and short-term rentals within five (5) business days after receipt unless the parties agree otherwise. All other types payments concerning property shall be deposited not later than the third business day after receipt or as provided in the agreement with those concerned.
A strong and lasting attraction characterized by trust, caring, tolerance, and friendship is called _____ love.
Answer:
Companionate (love).
Explanation:
As the exercise briefly describes, companionate love (also called affectionate love) is a trong and lasting attraction characterized by trust, caring, tolerance, and friendship. Commitment is also present given that this type of bond is as durable as it is slow to develop through time. This type of love is usually developed by intimate, romantic partners who have been in a relationship for some time or by close friends, with similar time lapses.
How did the Neo-Assyrian and Persian Empires interact with the peoples living on the fringes of their territories?
Answer:
They persistently used military force to either conquer their neighbors or demand tribute from them.
Explanation:
The Neo-Assyrian and Persians used military force to conquer people living on the fringes of their territory or demand tributes from them.
The poison tetraethylammonium (TEA) interferes with normal neural communication. The toxin binds to and blocks voltage-gated potassium channels in the neuron cell membrane. Which of the following best describes the effects of TEA on the action potential?
Answer:
The correct answer to the following question will be "The repolarization phase of the action potential is blocked".
Explanation:
Tetraethylammonium seems to be an experimental treatment without any advertised or accepted indication. It was considered to become a possible therapeutic vasodilator owing to its intracellular activities at just the autonomic ganglia but extreme harmful effects were observed.
The goals would be as follows:
Use streaming service-specific drugs including Tetraethylammonium and Tetradotoxin to consider the effects of those pathways.Comprehending the function of partial and full blocking on future generational activity.Therefore, it's the right answer.
A customer who is a resident of State X calls and wants to buy a security which is not registered in State X. The order may be taken under which of the following circumstances? a. The security is exempt from registration in State X. b. The security is listed on a Canadian or Mexican Stock Exchange. c. The security is listed on a national securities exchange in the United States. d. The security had a public offering during the past year.
Answer:
A, and C
Explanation:
Transaction can be done if the security is exempted from registration in State X and transaction can also be done if the security is listed on the national securities exchange in the United States.
Hesiod's explanation of the creation of humans ___________________. A. shows that he sees women as a great evil B. does not yet involve the gods C. is not very different from the Bible D. is a syntactic fusion of two accounts
Answer:
A. Shows that he sees women as a great evil.
Explanation:
The epic poem "The Theogony" by Hesoid is basically the creation story or the birth of the gods, it's genealogy and the eventual birth of the world into existence. The whole poem begins with the goddess Gaia, who was thought to be the primordial being for everything on earth.
According to the myth, Gaia emerged out of the complete chaos that was the universe in the beginning. Then she gave birth to Uranus, and then came the other great Greek gods through them. Being the mother of every being on earth, she was responsible for the good and the bad that happened in the world. Bringing forth evil children, while also some good gods, Gaia was the main source and beginning of all the beings. Thus, the creation of humanity in the poem of Hesoid shows or depicts that women are evil.
Hesiod's explanation of the creation of humans is not very different from the Bible.
Hesiod's explanation of the creation of humans is not very different from the Bible. The creation story in Hesiod's Theogony involves the emergence of both gods and humans, similar to how the Bible depicts the creation of man and woman by God. While there are differences in details, both narratives share a common theme of the creation of the world and humanity.
A population is best defined as a:_______.
A. High-risk group.
B. Collection of individuals who share at least one common characteristic.
C. School or institutional setting.
D. Geographical location within a community.
Answer:
The correct option is B: Collection of individuals who share at least one common characteristic
Explanation:
A population is simply a large collection of people or object aimed at being the focal point of a query or discovery. It can also be defined as a collection of individuals or object who share similar or common characteristics. Hence, researchers do not so much rely on the population, but mainly rely on the sampling techniques used for the research.
Boss Tweed led Tammany Hall in defrauding New York City taxpayers when building the New York County Courthouse. True False
Answer:
Boss Tweed led Tammany Hall in defrauding New York City taxpayers when building the New York County Courthouse is a TRUE statement.
Explanation:
William Tweed, popularly referred to as Boss Tweed, was a renowned politician in New York and was believed to be one of the most respected figures across New York in his time. He was the third largest landowner in New York and served as a director in the boards of directors of multiple agencies and organizations functioning in New York at once.Barter Bate, a wholesale store chain, was the first in the city to launch an online shopping website. Its website allowed customers to select required products and collect them from the nearest Barter Bate outlet. In this context, which of the following dimensions of the business environment is affected the most?
A. The ethical environment
B. The social environment
C. The technological environment
D. The global environment
Answer:
C. The technological environment
Explanation:
The technological environment -
It refers to the situation of using science and technology together , to make the process more efficient and useful , in a particular area or country, is referred to as the technological environment .
The method is used by the developed countries in order to adapt new and latest technology , so as to make the country more prosperous , by increasing the profit earned .
Hence , from the given scenario of the question,
The correct option is C. The technological environment .
Greek democracy differed from other forms of government in the ancient world because _________.a. it denied women and slaves the right to vote b. it provided food and jobs to the people c. a body called the assembly determined the laws of commerce d. it had a substantial sea fleet to protect its city-states
Answer:
C - A body called the assembly determined the laws of commerce.
Explanation:
This form of government, also called direct democracy (because citizens participated in both the creation of laws and their approval) differed from other forms of government in the ancient world because the assembly, this group of citizens that rotated every year, could determine the laws of commerce and any other type of law depending what was being discussed. This assembly of 500 citizens promoted laws which were then approved or not by the rest of citizens.
The precursor to the motion picture experience in movie theaters was the American nickelodeon. For the price of a nickel, viewers could watch short vignettes with high entertainment value played back by Thomas Edison's Kinetoscope. The experience of watching these short recorded scenes was similar to the experience of attending a ___________.
Answer: Vaudeville peep show
Explanation:
Vaudeville peep show is an entertainment and comedy series of acts and drama of the United States where it was displayed in the form of images or pictures which can be seen through a small peep hole.This show was displayed in form of exhibitionism.
According to the question, people watching short duration scenes in form of recorded pictures and screen is almost similar to watching vaudeville peep show.
The precursor to the motion picture experience in movie theaters was the American nickelodeon. Viewers could watch short vignettes with high entertainment value played back by Thomas Edison's Kinetoscope. The experience was similar to attending a vaudeville show.
Explanation:The precursor to the motion picture experience in movie theaters was the American nickelodeon. For the price of a nickel, viewers could watch short vignettes with high entertainment value played back by Thomas Edison's Kinetoscope. The experience of watching these short recorded scenes was similar to the experience of attending a vaudeville show which included singing, dancing, comedy acts, live animals, and magic.
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Bernice conducts a study on the effects of violent television on children. She obtains a sample of 30 aggressive children and 30 non-aggressive children. She has the aggressive children watch 15 minutes of aggressive television and the non-aggressive children watch 15 minutes of non-aggressive television. This study represents a _________ study.
Answer: Confounded
Explanation: A confounded study simply means an experiment or study in which a confounding or lurking variable has been introduced which will impact or cause a distortion between both the dependent and independent variable resulting in a spurious relationship.
In the scenario above, aggressive children were subjected to aggressive movies and non-aggressive children were subjected to non-aggressive movies. A lurking or confounding variable has been introduced such that a correlation or causal relationship cannot be correctly established.
Final answer:
Bernice's study on the influence of violent television on children's aggression is a quasi-experimental study, where children are assigned to groups based on their level of aggression. It assesses behavioral changes after exposure to violent or non-violent TV, but causation should be interpreted with caution due to potential external variables.
Explanation:
Bernice's study on the effects of violent television on children's aggression levels can be characterized as a quasi-experimental study. Different from a true experimental design, in a quasi-experiment like this, participants are not randomly assigned to the control or experimental group but are chosen based on pre-existing characteristics—in this case, the children's initial aggression levels.
Bernice has two groups: aggressive children who are exposed to violent television content and non-aggressive children who watch non-aggressive content. Observing and recording the number and types of aggressive acts on the playground after viewing provides a measure of any change in aggression, potentially due to the television content.
This setup aims to shed light on whether exposure to violent media content can elevate aggressive behavior in children. However, one must be cautious when interpreting the results, as they cannot definitively prove causation. External variables, such as individual predispositions or environmental factors, could also influence the outcomes. The observational learning theory, as suggested by studies like Albert Bandura's, proposes that children may imitate aggressive behaviors observed in media, leading to increased real-world aggression.
In his experiment, Duncan Watts created a website where respondents could rate songs. His sample size was 14,341 respondents. If Watts selected a new sample of 14,341 different respondents and their average ratings of each song were significantly different than the first sample, what problem would Watts's research suffer from?
Answer: unreliability
Explanation: Some of the problems that determine the quality of an experiment are reliability and validity.
Reliability considers the consistency of the experiment. In the example above, the result of the second sample is inconsistent with the result of the first sample, making Watt's research unreliable. That is, it does not reflect the ratings of a larger population. This problem can be solved by increasing the sample size, such that the average ratings are more reflective of a wider audience.
Validity considers the accuracy of the experiment. A lack of reliability of an experiment will likely make the result invalid as well, but this is not always the case.
An iron vise falls from rest at a great height. Neglecting air resistance, what is its speed after it has fallen for 5 seconds?
Answer:
49 m/s
Explanation:
Given :
Time, t = 5 seconds
The vice falls from rest, therefore the initial velocity, u = 0.
We know acceleration due to gravity, g = 9.8 m/s2
Therefore, from equation of motion , we get
v = u + g.t
= 0 + (9.8 x 5)
= 49 m/s
Therefore the speed of the vice is 49 m/s after 5 second.