Question 1

If one calculates a correlation of -1.15, this coefficient of correlation indicates a strong negative relationship.

Accepted Answer

A) True 
 B)False

Question 2

Inferential statistics are used to summarize numerical data, while descriptive statistics are used for decision-making and generalizing from small samples.

Accepted Answer

A) True 
 B)False

Question 3

A researcher wants to find out if a new math program is superior to the old math program that is used to teach college algebra at a community college.She selects 400 students from the total student body of 4,000 students to participate in this study.The 400 students would be considered the

Accepted Answer

A) sample. 
B) experimental group. 
C) population. 
D) control group. 
A) sample. 
B) experimental group. 
C) population. 
D) control group.

Question 4

Correlations allow us to

Accepted Answer

A) establish causation. 
B) determine statistical significance. 
C) establish random selection. 
D) make predictions. 
A) establish causation. 
B) determine statistical significance. 
C) establish random selection. 
D) make predictions.

Question 5

A graph that plots the intersection of paired measures, that is, the points at which paired X and Y measures cross is called a

Accepted Answer

A) scatter diagram. 
B) histogram. 
C) frequency polygon. 
D) frequency distribution. 
A) scatter diagram. 
B) histogram. 
C) frequency polygon. 
D) frequency distribution.

Question 6

Measures of _____ provide a single score that describes how scattered or "spread out" a distribution of scores is.

Accepted Answer

A) central tendency 
B) the mean 
C) variability 
D) the median 
A) central tendency 
B) the mean 
C) variability 
D) the median

Question 7

Which of the following correlation coefficents indicates the weakest relationship?

Accepted Answer

A) +.69 
B) -.85 
C) -1.27 
D) +.35 
A) +.69 
B) -.85 
C) -1.27 
D) +.35

Question 8

Inferential statistics are used for

Accepted Answer

A) generalization from small samples. 
B) drawing conclusions. 
C) decision making based on limited data. 
D) all of these. 
A) generalization from small samples. 
B) drawing conclusions. 
C) decision making based on limited data. 
D) all of these.

Question 9

A sample is

Accepted Answer

A) a measure of central tendency. 
B) a measure of variability. 
C) the same as the z-score or standard deviation. 
D) a portion of a population. 
A) a measure of central tendency. 
B) a measure of variability. 
C) the same as the z-score or standard deviation. 
D) a portion of a population.

Question 10

If the mean on a test is 100 and the standard deviation is 15, a person with a z-score of +1.0 scored _____ on the test.

Accepted Answer

A) 70 
B) 85 
C) 115 
D) 130 
A) 70 
B) 85 
C) 115 
D) 130

Question 11

The _____ is found by arranging scores from the highest to the lowest and selecting the score that falls in the middle.

Accepted Answer

A) range 
B) mean 
C) median 
D) mode 
A) range 
B) mean 
C) median 
D) mode

Question 12

Results of an experiment that have a chance probability of _____ are usually regarded as statistically significant.

Accepted Answer

A) .5 
B) .05 
C) 1.5 
D) 1.05 
A) .5 
B) .05 
C) 1.5 
D) 1.05

Question 13

Ten music majors take a 20-point quiz on the musical scales.Their scores were as follows:
12, 13, 15, 15, 16, 16, 17, 18, 19, 20.The median of these scores is 16.

Accepted Answer

A) True 
 B)False

Question 14

The results of a significance test are stated as a

Accepted Answer

A) correlation. 
B) probability. 
C) standard deviation. 
D) mean. 
A) correlation. 
B) probability. 
C) standard deviation. 
D) mean.

Question 15

If you add up all the scores and then divide by the number of scores, you arrive at the mean.

Accepted Answer

A) True 
 B)False

Question 16

Ninety-nine percent of all the cases are found between _____ SD and _____ SD on a normal curve.

Accepted Answer

A) 0 ; +3 
B) -1 ; +2 
C) -2 ; +2 
D) -3 ; +3 
A) 0 ; +3 
B) -1 ; +2 
C) -2 ; +2 
D) -3 ; +3

Question 17

A frequency distribution is made by breaking down the entire range of possible scores into classes of equal size and then recording the number of scores falling into each class.

Accepted Answer

A) True 
 B)False

Question 18

Results of an experiment that have a chance probability of .05 are usually regarded as statistically significant.

Accepted Answer

A) True 
 B)False

Question 19

If the points on a scatter diagram are clustered in a pattern that extends from lower left to upper right, this would suggest that the two variables depicted are

Accepted Answer

A) normally distributed. 
B) not correlated. 
C) positively correlated. 
D) negatively correlated. 
A) normally distributed. 
B) not correlated. 
C) positively correlated. 
D) negatively correlated.

Question 20

Correlations allow us to _____, while experiments allow us to _____.

Accepted Answer

A) determine causation; make predictions 
B) demonstrate statistical significance; make predictions 
C) make predictions; demonstrate percent of variance 
D) make predictions; determine causation 
A) determine causation; make predictions 
B) demonstrate statistical significance; make predictions 
C) make predictions; demonstrate percent of variance 
D) make predictions; determine causation

Exam 19: Appendix A: Behavioral Statistics

If one calculates a correlation of -1.15, this coefficient of correlation indicates a strong negative relationship.

Inferential statistics are used to summarize numerical data, while descriptive statistics are used for decision-making and generalizing from small samples.

A researcher wants to find out if a new math program is superior to the old math program that is used to teach college algebra at a community college.She selects 400 students from the total student body of 4,000 students to participate in this study.The 400 students would be considered the

Correlations allow us to

A graph that plots the intersection of paired measures, that is, the points at which paired X and Y measures cross is called a

Measures of _____ provide a single score that describes how scattered or "spread out" a distribution of scores is.

Which of the following correlation coefficents indicates the weakest relationship?

Inferential statistics are used for

A sample is

If the mean on a test is 100 and the standard deviation is 15, a person with a z-score of +1.0 scored _____ on the test.

The _____ is found by arranging scores from the highest to the lowest and selecting the score that falls in the middle.

Results of an experiment that have a chance probability of _____ are usually regarded as statistically significant.

Ten music majors take a 20-point quiz on the musical scales.Their scores were as follows: 12, 13, 15, 15, 16, 16, 17, 18, 19, 20.The median of these scores is 16.

The results of a significance test are stated as a

If you add up all the scores and then divide by the number of scores, you arrive at the mean.

Ninety-nine percent of all the cases are found between _____ SD and _____ SD on a normal curve.

A frequency distribution is made by breaking down the entire range of possible scores into classes of equal size and then recording the number of scores falling into each class.

Results of an experiment that have a chance probability of .05 are usually regarded as statistically significant.

If the points on a scatter diagram are clustered in a pattern that extends from lower left to upper right, this would suggest that the two variables depicted are

Correlations allow us to _____, while experiments allow us to _____.

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

Ninety-nine percent of all the cases are found between _ SD and _ SD on a normal curve.

Correlations allow us to _, while experiments allow us to _.