Question 1

A correlation between levels of impulsiveness and annual income of -0.75 would indicate that

Accepted Answer

A)   lower levels of impulsiveness are associated with lower levels of annual income.
B)   higher levels of annual income are associated with lower levels of impulsiveness.
C)   it is impossible to predict annual income levels from knowledge of impulsiveness levels.
D)   impulsiveness has no causal influence on annual income.E) A) and C)
F) A) and D)

Question 2

Differences between two samples are LEAST likely to be statistically significant if the samples are _______ and the standard deviations of the samples are _______.

Accepted Answer

A)   small;small
B)   large;large
C)   small;large
D)   large;smallE) C) and D)
F) A) and C)

Question 3

Stacey suggests that because children are more impulsive than adults,they will have more difficulty controlling their anger.Stacey's prediction regarding anger management is an example of

Accepted Answer

A)   a hypothesis.
B)   informed consent.
C)   an operational definition.
D)   the placebo effect.E) B) and D)
F) B) and C)

Question 4

The mean of a distribution of scores is the

Accepted Answer

A)   most frequently occurring score.
B)   arithmetic average of all the scores.
C)   least frequently occurring score.
D)   score exceeded by 50 percent of all the scores.E) None of the above
F) B) and D)

Question 5

Potential research participants are told enough about an upcoming study to enable them to choose whether they wish to participate.This illustrates the practice of seeking

Accepted Answer

A)   a representative sample.
B)   informed consent.
C)   an operational definition.
D)   a placebo effect.E) A) and B)
F) B) and D)

Question 6

The average price for different brands of toothpaste could be visually displayed in a(n)

Accepted Answer

A)   correlation coefficient.
B)   extrapolation.
C)   standard deviation.
D)   bar graph.E) B) and D)
F) All of the above

Question 7

To provide a rough estimate of how similar or diverse a set of scores is,we should calculate the

Accepted Answer

A)   standard deviation.
B)   mean.
C)   median.
D)   range.E) B) and D)
F) B) and C)

Question 8

Variation is to central tendency as range is to ________.

Accepted Answer

A)   mode
B)   bar graph
C)   scatterplot
D)   correlationE) None of the above
F) A) and B)

Question 9

In a distribution of test scores,which measure of central tendency would likely be the most affected by a couple of extremely high scores?

Accepted Answer

A)   median
B)   mode
C)   standard deviation
D)   meanE) A) and D)
F) A) and C)

Question 10

Speedy and automatic conclusions triggered by gut-level feelings are best described as

Accepted Answer

A)   random events.
B)   intuitions.
C)   predictions.
D)   hidden values.E) None of the above
F) C) and D)

Question 11

Which measure of central tendency is used to calculate the average of your school grades?

Accepted Answer

A)   standard deviation
B)   median
C)   mean
D)   modeE) B) and C)
F) A) and B)

Question 12

Akira dreamed that a handsome young man she had met the previous day asked her for a date.When he actually did call for a date several days later,Akira concluded that dreams accurately predict future events.Her belief best illustrates

Accepted Answer

A)   regression toward the mean.
B)   an illusory correlation.
C)   random assignment.
D)   a scatterplot.E) A) and D)
F) A) and B)

Question 13

When your best friend hears that you are taking a psychology course,she asserts that psychology is simply common sense.Explain why your awareness of both the limits of everyday reasoning and the methods of psychological research would lead you to disagree with your friend's assertion.

Accepted Answer

The answer of When your best friend hears that you...

Question 14

The personal values of psychologists are likely to influence their choice of

Accepted Answer

A)   topics of investigation.
B)   research methods.
C)   explanatory theories.
D)   topics,methods,and theories.E) All of the above
F) A) and B)

Question 15

To determine whether the strength of people's self-esteem is related to their income levels,researchers would most likely make use of

Accepted Answer

A)   case studies.
B)   correlational research.
C)   experimentation.
D)   naturalistic observation.E) A) and B)
F) A) and C)

Question 16

One person in a 10-person group is 10 times older than anyone else in the group.With respect to age,it is MOST likely that the majority of group members are younger than the group's

Accepted Answer

A)   mode.
B)   median.
C)   mean.
D)   standard deviation.E) C) and D)
F) A) and C)

Question 17

Assessing whether conclusions are warranted by the existing evidence best illustrates

Accepted Answer

A)   critical thinking.
B)   hindsight bias.
C)   an intuitive hunch.
D)   chance-related explanation.E) C) and D)
F) All of the above

Question 18

One research team studied the ups and downs of human moods by counting positive and negative words in 504 million Twitter messages from 84 countries.The researchers' method best illustrates the use of

Accepted Answer

A)   experimentation.
B)   naturalistic observation.
C)   case studies.
D)   a survey.E) None of the above
F) A) and B)

Question 19

The mode,median,and mean are most likely to have different values when they

Accepted Answer

A)   describe a skewed distribution.
B)   are derived from a limited range of scores.
C)   represent the central tendency of a random sample.
D)   represent the central tendency of an entire population.E) B) and C)
F) None of the above

Question 20

To calculate the numerical value of the standard deviation,it would be most reasonable to first compute the value of the

Accepted Answer

A)   mean.
B)   mode.
C)   correlation coefficient.
D)   median.E) A) and D)
F) B) and D)

Exam 2: Thinking Critically With Psychological Science

Differences between two samples are LEAST likely to be statistically significant if the samples are _______ and the standard deviations of the samples are _______.

Correct AnswerverifiedShow Answer

One person in a 10-person group is 10 times older than anyone else in the group.With respect to age,it is MOST likely that the majority of group members are younger than the group's

Correct AnswerverifiedShow Answer

To provide a rough estimate of how similar or diverse a set of scores is,we should calculate the

Correct AnswerverifiedShow Answer

The average price for different brands of toothpaste could be visually displayed in a(n)

Correct AnswerverifiedShow Answer

In a distribution of test scores,which measure of central tendency would likely be the most affected by a couple of extremely high scores?

Correct AnswerverifiedShow Answer

A correlation between levels of impulsiveness and annual income of -0.75 would indicate that

Correct AnswerverifiedShow Answer

The personal values of psychologists are likely to influence their choice of

Correct AnswerverifiedShow Answer

The mode,median,and mean are most likely to have different values when they

Correct AnswerverifiedShow Answer

Speedy and automatic conclusions triggered by gut-level feelings are best described as

Correct AnswerverifiedShow Answer

To calculate the numerical value of the standard deviation,it would be most reasonable to first compute the value of the

Correct AnswerverifiedShow Answer

Akira dreamed that a handsome young man she had met the previous day asked her for a date.When he actually did call for a date several days later,Akira concluded that dreams accurately predict future events.Her belief best illustrates

Correct AnswerverifiedShow Answer

Stacey suggests that because children are more impulsive than adults,they will have more difficulty controlling their anger.Stacey's prediction regarding anger management is an example of

Correct AnswerverifiedShow Answer

Which measure of central tendency is used to calculate the average of your school grades?

Correct AnswerverifiedShow Answer

One research team studied the ups and downs of human moods by counting positive and negative words in 504 million Twitter messages from 84 countries.The researchers' method best illustrates the use of

Correct AnswerverifiedShow Answer

The mean of a distribution of scores is the

Correct AnswerverifiedShow Answer

To determine whether the strength of people's self-esteem is related to their income levels,researchers would most likely make use of

Correct AnswerverifiedShow Answer

Potential research participants are told enough about an upcoming study to enable them to choose whether they wish to participate.This illustrates the practice of seeking

Correct AnswerverifiedShow Answer

Assessing whether conclusions are warranted by the existing evidence best illustrates

Correct AnswerverifiedShow Answer

Variation is to central tendency as range is to ________.

Correct AnswerverifiedShow Answer

When your best friend hears that you are taking a psychology course,she asserts that psychology is simply common sense.Explain why your awareness of both the limits of everyday reasoning and the methods of psychological research would lead you to disagree with your friend's assertion.

Correct AnswerverifiedShow Answer

Differences between two samples are LEAST likely to be statistically significant if the samples are _ and the standard deviations of the samples are _.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified