Question 1

With a positively skewed distribution __________.

Accepted Answer

A) the mean is always in the center of the distribution 
B) all the measures of central tendency are equal 
C) the mean is always in the low end of the scores 
D) the mean is pulled in the direction of the tail 
A) the mean is always in the center of the distribution 
B) all the measures of central tendency are equal 
C) the mean is always in the low end of the scores 
D) the mean is pulled in the direction of the tail

Question 2

Students with good research and statistical skills _________.

Accepted Answer

A) make more money on average than those without 
B) make less money on average than those with these skills 
C) show no difference in salary between students without research skills 
D) are known to panic in more professional situations than those without research skills 
A) make more money on average than those without 
B) make less money on average than those with these skills 
C) show no difference in salary between students without research skills 
D) are known to panic in more professional situations than those without research skills

Question 3

The symbol for the correlation coefficient is ________.

Accepted Answer

A) t 
B) r 
C) z 
D) F 
A) t 
B) r 
C) z 
D) F

Question 4

When researchers want to know about the causes of differences in data they would use ______________.

Accepted Answer

A) descriptive statistics 
B) inferential statistics 
C) the correlation coefficient 
D) the method of limited decisions 
A) descriptive statistics 
B) inferential statistics 
C) the correlation coefficient 
D) the method of limited decisions

Question 5

The mode is _______________.

Accepted Answer

A) the measure of central tendency representing the most frequent score 
B) a measure of the variability of a frequency distribution 
C) the smallest value of a frequency distribution 
D) the score that falls in the middle of an ordered distribution 
A) the measure of central tendency representing the most frequent score 
B) a measure of the variability of a frequency distribution 
C) the smallest value of a frequency distribution 
D) the score that falls in the middle of an ordered distribution

Question 6

A way to test differences to see how likely differences are to be real and not just caused by the random variations in behavior is called ______________.

Accepted Answer

A) statistical significance 
B) descriptive statistics 
C) correlational analysis 
D) chi-cubed 
A) statistical significance 
B) descriptive statistics 
C) correlational analysis 
D) chi-cubed

Question 7

Statistical analysis is a way ______________exists in almost any body of data.

Accepted Answer

A) of trying to account for the error that 
B) of trying to correct the error that 
C) of trying to maximize the difference between various experimental groups 
D) of trying to increase the variability between various experimental groups 
A) of trying to account for the error that 
B) of trying to correct the error that 
C) of trying to maximize the difference between various experimental groups 
D) of trying to increase the variability between various experimental groups

Question 8

The normal curve is not always symmetrical.

Accepted Answer

A) True 
 B)False

Question 9

This measurement known as the _________________ is the square root of the average squared difference,or deviation,of the scores from the mean of the distribution.

Accepted Answer

A) average deviation 
B) range 
C) variability estimate 
D) standard deviation 
A) average deviation 
B) range 
C) variability estimate 
D) standard deviation

Question 10

Which correlation coefficient indicates a positive relationship?

Accepted Answer

A) +1.2 
B) 0)8 
C) -0.8 
D) 1)96 
A) +1.2 
B) 0)8 
C) -0.8 
D) 1)96

Question 11

The formula for the mean is ___________.

Accepted Answer

A) ΣX/N 
B) Σ(X – M)2/N 
C) ΣZx/Zy/N 
D) A2 + B2 = C2 
A) ΣX/N 
B) Σ(X – M)2/N 
C) ΣZx/Zy/N 
D) A2 + B2 = C2

Question 12

A measure of central tendency will give you information about __________.

Accepted Answer

A) a distribution's most typical score 
B) the variability of a distribution's score 
C) always computed by adding all the scores and dividing by the total number of scores 
D) the center of the central nervous system 
A) a distribution's most typical score 
B) the variability of a distribution's score 
C) always computed by adding all the scores and dividing by the total number of scores 
D) the center of the central nervous system

Question 13

Jamilla is interested in how many pizza slices the average teenage boy would eat for lunch.Thus,she asks 25 young men from her high school home room class and computes the average.This average would be called a ___________.

Accepted Answer

A) measure of variability 
B) measure of dispersion 
C) parameter 
D) statistic 
A) measure of variability 
B) measure of dispersion 
C) parameter 
D) statistic

Question 14

On IQ tests,"giftedness" is normally defined as having an IQ score that is _________standard deviation(s)above the mean.

Accepted Answer

A) one 
B) two 
C) three 
D) four 
A) one 
B) two 
C) three 
D) four

Question 15

The correlation coefficient is a ________________.

Accepted Answer

A) measure of variability 
B) measure of central tendency 
C) parameter 
D) measure of a relationship between two or more variables 
A) measure of variability 
B) measure of central tendency 
C) parameter 
D) measure of a relationship between two or more variables

Question 16

Inferential statistics are used to determine if ____________.

Accepted Answer

A) the differences in your data are caused by chance variability 
B) your theory is the best theory of all of them 
C) the scores in the distributions are skewed 
D) one can best determine what measure of central tendency describes your data 
A) the differences in your data are caused by chance variability 
B) your theory is the best theory of all of them 
C) the scores in the distributions are skewed 
D) one can best determine what measure of central tendency describes your data

Question 17

Which type of frequency distribution graph uses lines to present the frequency data?

Accepted Answer

A) polygon 
B) normal curve 
C) histogram 
D) skewed distribution 
A) polygon 
B) normal curve 
C) histogram 
D) skewed distribution

Question 18

A parameter is ______________.

Accepted Answer

A) calculated from a population 
B) calculated from a sample 
C) are calculated using the formula Σ(X - M)2/N 
D) tells you the probability that a sample difference is due to chance 
A) calculated from a population 
B) calculated from a sample 
C) are calculated using the formula Σ(X - M)2/N 
D) tells you the probability that a sample difference is due to chance

Question 19

The median is _____________.

Accepted Answer

A) the sum of all scores divided by N 
B) a measure of the variability of a frequency distribution 
C) the smallest value of a frequency distribution 
D) the score that falls in the middle of an ordered distribution 
A) the sum of all scores divided by N 
B) a measure of the variability of a frequency distribution 
C) the smallest value of a frequency distribution 
D) the score that falls in the middle of an ordered distribution

Question 20

If you were interested in evaluating the relationships among three or more variables,you might use a technique known as ___________.

Accepted Answer

A) the analysis of variance 
B) the correlation coefficient 
C) chi-square 
D) multiple regression 
A) the analysis of variance 
B) the correlation coefficient 
C) chi-square 
D) multiple regression

Exam 1: Appendix A: Statistics in Psychology

With a positively skewed distribution __________.

Students with good research and statistical skills _________.

The symbol for the correlation coefficient is ________.

When researchers want to know about the causes of differences in data they would use ______________.

The mode is _______________.

A way to test differences to see how likely differences are to be real and not just caused by the random variations in behavior is called ______________.

Statistical analysis is a way ______________exists in almost any body of data.

The normal curve is not always symmetrical.

This measurement known as the _________________ is the square root of the average squared difference,or deviation,of the scores from the mean of the distribution.

Which correlation coefficient indicates a positive relationship?

The formula for the mean is ___________.

A measure of central tendency will give you information about __________.

Jamilla is interested in how many pizza slices the average teenage boy would eat for lunch.Thus,she asks 25 young men from her high school home room class and computes the average.This average would be called a ___________.

On IQ tests,"giftedness" is normally defined as having an IQ score that is _________standard deviation(s)above the mean.

The correlation coefficient is a ________________.

Inferential statistics are used to determine if ____________.

Which type of frequency distribution graph uses lines to present the frequency data?

A parameter is ______________.

The median is _____________.

If you were interested in evaluating the relationships among three or more variables,you might use a technique known as ___________.

A: The Science of Psychology

B: The Science of Psychology

C: The Science of Psychology

A: The Biological Perspective

B: The Biological Perspective

C: The Biological Perspective

Appendix B: Applied Psychology and Psychology Careers

A: Sensation and Perception

B: Sensation and Perception

C: Sensation and Perception

A: Learning

B: Learning

C: Learning

A: Memory

B: Memory

C: Memory

Appendix: Secrets for Surviving College: How to Improve Your Grades

A: Consciousness and Cognition

B: Consciousness and Cognition

C: Consciousness and Cognition

Development Across the Lifespan

A: Development Across the Lifespan

B: Development Across the Lifespan

C: Development Across the Lifespan

Motivation and Emotion

A: Motivation and Emotion

B: Motivation and Emotion

C: Motivation and Emotion

Stress and Health

A: Stress and Health

B: Stress and Health

C: Stress and Health

Social Psychology

A Social Psychology

B: Social Psychology

C: Social Psychology

Theories of Personality and Intelligence

A: Theories of Personality and Intelligence

B: Theories of Personality and Intelligence

C: Theories of Personality and Intelligence

Psychological Disorders

A: Psychological Disorders

B: Psychological Disorders

C: Psychological Disorders

Psychological Therapies

A: Psychological Therapies

B: Psychological Therapies

C: Psychological Therapies

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