Question 1

The absence of a mathematical relationship between two measures is referred to as a

Accepted Answer

A) zero correlation. 
B) null hypothesis. 
C) variable relationship. 
D) negative correlation. 
A) zero correlation. 
B) null hypothesis. 
C) variable relationship. 
D) negative correlation.

Question 2

A single number that describes a "middle score" is a(n)

Accepted Answer

A) inferential statistic. 
B) measure of central tendency. 
C) z-score. 
D) frequency distribution. 
A) inferential statistic. 
B) measure of central tendency. 
C) z-score. 
D) frequency distribution.

Question 3

A scatter plot in which all the points fall in a straight diagonal line would be characteristic of two sets of variables which

Accepted Answer

A) are perfectly correlated. 
B) have a correlation coefficient of 0.0. 
C) show equal amounts of variability. 
D) are characterized by none of these. 
A) are perfectly correlated. 
B) have a correlation coefficient of 0.0. 
C) show equal amounts of variability. 
D) are characterized by none of these.

Question 4

A measure of _____ is simply a number describing a "typical score" around which other scores fall.

Accepted Answer

A) variability 
B) central tendency 
C) normality 
D) cohesion 
A) variability 
B) central tendency 
C) normality 
D) cohesion

Question 5

_____ are techniques for presenting numbers pictorially, often by plotting them on a graph.

Accepted Answer

A) Graphical statistics 
B) Inferential statistics 
C) Figural statistics 
D) Nominal statistics 
A) Graphical statistics 
B) Inferential statistics 
C) Figural statistics 
D) Nominal statistics

Question 6

Given these scores 40, 40, 30, 50, 30, 20, 40, 20, 50, 40, the mode is 30.

Accepted Answer

A) True 
 B)False

Question 7

_____ provide an estimate of how often experimental results could have occurred by chance alone.

Accepted Answer

A) Coefficients of correlation 
B) Random selections 
C) Graphical statistics 
D) Tests of statistical significance 
A) Coefficients of correlation 
B) Random selections 
C) Graphical statistics 
D) Tests of statistical significance

Question 8

When measure X gets smaller, measure Y also gets smaller in a

Accepted Answer

A) zero correlation. 
B) positive relationship. 
C) variable relationship. 
D) negative relationship. 
A) zero correlation. 
B) positive relationship. 
C) variable relationship. 
D) negative relationship.

Question 9

An entire set of subjects, objects, or events belonging to a particular category is called a

Accepted Answer

A) population. 
B) sample. 
C) cross section. 
D) universal set. 
A) population. 
B) sample. 
C) cross section. 
D) universal set.

Question 10

If two variables have a correlation of -1.00, then a weak relationship exists between them.

Accepted Answer

A) True 
 B)False

Question 11

There are ten students in the pre-kindergarten class.Each student is shown eight colors and asked to name them.The number of colors correctly named by each student was: 8, 8, 8, 8, 7, 7, 6, 6, 5, 4.What would be the mean?

Accepted Answer

A) 4.0 
B) 5.7 
C) 6.7 
D) 8.0 
A) 4.0 
B) 5.7 
C) 6.7 
D) 8.0

Question 12

There are ten students in the pre-kindergarten class.Each student is shown eight colors and asked to name them.The number of colors correctly named by each student was: 8, 8, 8, 8, 7, 7, 6, 6, 5, 4.What would be the median?

Accepted Answer

A) 4.0 
B) 6.7 
C) 7.0 
D) 8.0 
A) 4.0 
B) 6.7 
C) 7.0 
D) 8.0

Question 13

The relationship of the standard deviation to the normal curve makes it possible to compare groups of scores if they come from distributions that are approximately normal.

Accepted Answer

A) True 
 B)False

Question 14

Professor Warren calculated the mean, median, and mode of the scores made on the midterm exam.These descriptive statistics are known as

Accepted Answer

A) inferential statistics. 
B) the measures of central tendency. 
C) the measures of variability. 
D) graphical statistics. 
A) inferential statistics. 
B) the measures of central tendency. 
C) the measures of variability. 
D) graphical statistics.

Question 15

The 25 students in the psychology class take a 20-point quiz.Five of the students each obtained a score of 10 on the quiz, ten students each obtained a score of 15, and ten students each obtained a perfect scores of 20.What would be the mean of these scores?

Accepted Answer

A) 12 
B) 14 
C) 16 
D) 18 
A) 12 
B) 14 
C) 16 
D) 18

Question 16

The number of standard deviation units a score falls above or below the mean defines its

Accepted Answer

A) median. 
B) correlation coefficient. 
C) z-score. 
D) average. 
A) median. 
B) correlation coefficient. 
C) z-score. 
D) average.

Question 17

Regarding tests of statistical significance, which of the following statements is/are TRUE?

Accepted Answer

A) They provide estimates about experimental results. 
B) They are usually expressed as probabilities. 
C) They allow us to make conclusions about research within a reasonable degree of certainty. 
D) All of these statements are true. 
A) They provide estimates about experimental results. 
B) They are usually expressed as probabilities. 
C) They allow us to make conclusions about research within a reasonable degree of certainty. 
D) All of these statements are true.

Question 18

Measures of central tendency fall into the category of

Accepted Answer

A) nominal scales. 
B) ordinal scales. 
C) descriptive statistics. 
D) inferential statistics. 
A) nominal scales. 
B) ordinal scales. 
C) descriptive statistics. 
D) inferential statistics.

Question 19

A major requirement for a sample to be used in psychological research is that it be

Accepted Answer

A) statistically supportive. 
B) significant. 
C) practical. 
D) representative. 
A) statistically supportive. 
B) significant. 
C) practical. 
D) representative.

Question 20

Which of the following is NOT an example of a correlational study?

Accepted Answer

A) Does a new drug cause an improvement in memory for nonsense syllables? 
B) Are socioeconomic and educational levels related to family size? 
C) Do high school grades resemble college grades? 
D) Is there a relationship between increases in rainfall levels and declines in crime rates? 
A) Does a new drug cause an improvement in memory for nonsense syllables? 
B) Are socioeconomic and educational levels related to family size? 
C) Do high school grades resemble college grades? 
D) Is there a relationship between increases in rainfall levels and declines in crime rates?

Exam 19: Appendix A: Behavioral Statistics

The absence of a mathematical relationship between two measures is referred to as a

A single number that describes a "middle score" is a(n)

A scatter plot in which all the points fall in a straight diagonal line would be characteristic of two sets of variables which

A measure of _____ is simply a number describing a "typical score" around which other scores fall.

_____ are techniques for presenting numbers pictorially, often by plotting them on a graph.

Given these scores 40, 40, 30, 50, 30, 20, 40, 20, 50, 40, the mode is 30.

_____ provide an estimate of how often experimental results could have occurred by chance alone.

When measure X gets smaller, measure Y also gets smaller in a

An entire set of subjects, objects, or events belonging to a particular category is called a

If two variables have a correlation of -1.00, then a weak relationship exists between them.

There are ten students in the pre-kindergarten class.Each student is shown eight colors and asked to name them.The number of colors correctly named by each student was: 8, 8, 8, 8, 7, 7, 6, 6, 5, 4.What would be the mean?

There are ten students in the pre-kindergarten class.Each student is shown eight colors and asked to name them.The number of colors correctly named by each student was: 8, 8, 8, 8, 7, 7, 6, 6, 5, 4.What would be the median?

The relationship of the standard deviation to the normal curve makes it possible to compare groups of scores if they come from distributions that are approximately normal.

Professor Warren calculated the mean, median, and mode of the scores made on the midterm exam.These descriptive statistics are known as

The 25 students in the psychology class take a 20-point quiz.Five of the students each obtained a score of 10 on the quiz, ten students each obtained a score of 15, and ten students each obtained a perfect scores of 20.What would be the mean of these scores?

The number of standard deviation units a score falls above or below the mean defines its

Regarding tests of statistical significance, which of the following statements is/are TRUE?

Measures of central tendency fall into the category of

A major requirement for a sample to be used in psychological research is that it be

Which of the following is NOT an example of a correlational study?

Introduction the Psychology

Extension A: Introduction to Psychology and Research Methods

Extension B: Introduction to Psychology and Research Methods

Extension C: Introduction to Psychology and Research Methods

Extension A: Brain and Behavior

Extension B: Brain and Behavior

Extension C: Brain and Behavior

Extension A: Human Development

Extension B: Human Development

Extension C: Human Development

Extension D: Human Development

Extension A: Sensation and Reality

Extension B: Sensation and Reality

Extension A: Perceiving the World

Extension B: Perceiving the World

Extension A: States of Consciousness

Extension B: States of Consciousness

Extension C: States of Consciousness

Extension D: States of Consciousness

Extension A: Conditioning and Learning

Extension B: Conditioning and Learning

Extension C: Conditioning and Learning

Extension A: Memory

Extension B: Memory

Extension C: Memory

Extension A: Cognition, Language, Creativity, and Intelligence

Extension B: Cognition, Language, Creativity, and Intelligence

Extension C: Cognition, Language, Creativity, and Intelligence

Extension D: Cognition, Language, Creativity, and Intelligence

Extension A: Motivation and Emotion

Extension B: Motivation and Emotion

Extension C: Motivation and Emotion

Extension D: Motivation and Emotion

Extension A: Gender and Sexuality

Extension B: Gender and Sexuality

Extension C: Gender and Sexuality

Extension A: Personality

Extension B: Personality

Extension C: Personality

Extension D: Personality

Extension A: Health, Stress, and Coping

Extension B: Health, Stress, and Coping

Extension C: Health, Stress, and Coping

Extension A: Psychological Disorders

Extension B: Psychological Disorders

Extension C: Psychological Disorders

Extension D: Psychological Disorders

Extension A: Therapies

Extension B: Therapies

Extension C: Therapies

Extension D: Therapies

Extension A: Social Thinking and Social Influence

Extension B: Social Thinking and Social Influence

Extension C: Social Thinking and Social Influence

Extension A: Prosocial and Antisocial Behavior

Extension B: Prosocial and Antisocial Behavior

Extension C: Prosocial and Antisocial Behavior

Extension A: Applied Psychology

Extension B: Applied Psychology