Question 1

Which of the following would be an appropriate measure of central tendency to summarize data on an ordinal scale?

Accepted Answer

A) Mean 
B) Median 
C) Mode 
D) Meridian 
A) Mean 
B) Median 
C) Mode 
D) Meridian

Question 2

The _____ is an appropriate indicator of central tendency only when scores are measured on an interval or ratio scale.

Accepted Answer

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

Question 3

The _____ is a measure of variability that is simply the difference between the highest score and the lowest score.

Accepted Answer

A) variance 
B) standard deviation 
C) median 
D) range 
A) variance 
B) standard deviation 
C) median 
D) range

Question 4

The principal of a school conducts a survey to compare the number of third grade and sixth grade students who buy their lunch at school. The most appropriate way to describe the results of this survey would be to compare:

Accepted Answer

A) group percentages. 
B) frequency polygons. 
C) group means. 
D) items purchased. 
A) group percentages. 
B) frequency polygons. 
C) group means. 
D) items purchased.

Question 5

Sumaira took an aptitude test for a position with Accountants Unlimited. She was hired the following week. In this scenario, the predictor variable is Sumaira's _____.

Accepted Answer

A) appearance and personality 
B) expected ability to get along with her fellow employees 
C) score on the aptitude test 
D) expected performance as an accountant 
A) appearance and personality 
B) expected ability to get along with her fellow employees 
C) score on the aptitude test 
D) expected performance as an accountant

Question 6

A multiple correlation is the correlation between a combined set of _____ variables and a single _____ variable.

Accepted Answer

A) interval; ratio 
B) ratio; interval 
C) predictor; criterion 
D) criterion; predictor 
A) interval; ratio 
B) ratio; interval 
C) predictor; criterion 
D) criterion; predictor

Question 7

A professional baseball scout uses the batting average, on-base percentage, throwing ability, and running speed of amateur baseball players to predict their success as professional baseball players. This strategy is an example of using _____ as a predictor of the likelihood of success.

Accepted Answer

A) effect size 
B) multiple correlation 
C) practicality assessment 
D) criterion variable assessment 
A) effect size 
B) multiple correlation 
C) practicality assessment 
D) criterion variable assessment

Question 8

Maria had to take an aptitude test before starting graduate school. In this scenario, the criterion variable will be Maria's _____.

Accepted Answer

A) appearance and personality 
B) expected ability to get along with her fellow students 
C) score on the aptitude test 
D) expected performance as a student in graduate school 
A) appearance and personality 
B) expected ability to get along with her fellow students 
C) score on the aptitude test 
D) expected performance as a student in graduate school

Question 9

Which of the following would be an appropriate measure of central tendency to summarize data on a nominal scale?

Accepted Answer

A) Mean 
B) Median 
C) Mode 
D) Standard deviation 
A) Mean 
B) Median 
C) Mode 
D) Standard deviation

Question 10

Which of the following statements is true about effect size?

Accepted Answer

A) It is a statistic that describes how strongly variables are related to one another. 
B) It is the difference between the highest and lowest value of a variable. 
C) It ranges from 0.00 to 1.00, irrespective of the variables used. 
D) It occurs when the individuals in a sample are very similar on the variable being studied. 
A) It is a statistic that describes how strongly variables are related to one another. 
B) It is the difference between the highest and lowest value of a variable. 
C) It ranges from 0.00 to 1.00, irrespective of the variables used. 
D) It occurs when the individuals in a sample are very similar on the variable being studied.

Question 11

A correlation of 0.00 indicates that _____.

Accepted Answer

A) the variables are dependent on each other 
B) the variables are inversely proportional to each other 
C) there is a decrease in the value of the variables 
D) there is no relationship between the variables 
A) the variables are dependent on each other 
B) the variables are inversely proportional to each other 
C) there is a decrease in the value of the variables 
D) there is no relationship between the variables

Question 12

A researcher measures the time taken by subjects to press a button following a signal. This measure is an example of a(n) _____ scale.

Accepted Answer

A) nominal 
B) ratio 
C) ordinal 
D) interval 
A) nominal 
B) ratio 
C) ordinal 
D) interval

Question 13

A regression equation is used to:

Accepted Answer

A) determine the strength of the relationship between X and Y. 
B) determine the causal relationship between X and Y. 
C) predict a score for Y from a known score of X. 
D) predict the difference between the scores of X and Y. 
A) determine the strength of the relationship between X and Y. 
B) determine the causal relationship between X and Y. 
C) predict a score for Y from a known score of X. 
D) predict the difference between the scores of X and Y.

Question 14

The general form of a regression equation is Y = a + bX. In this equation, Y is the score we wish to predict and X is the known score. What is "a"?

Accepted Answer

A) It is a constant. 
B) It is a weighting adjustment factor that is multiplied by X. 
C) It is the slope of the line created with this equation. 
D) It is the difference between X and Y. 
A) It is a constant. 
B) It is a weighting adjustment factor that is multiplied by X. 
C) It is the slope of the line created with this equation. 
D) It is the difference between X and Y.

Which of the following would be an appropriate measure of central tendency to summarize data on an ordinal scale?

The _____ is an appropriate indicator of central tendency only when scores are measured on an interval or ratio scale.

The _____ is a measure of variability that is simply the difference between the highest score and the lowest score.

The principal of a school conducts a survey to compare the number of third grade and sixth grade students who buy their lunch at school. The most appropriate way to describe the results of this survey would be to compare:

Sumaira took an aptitude test for a position with Accountants Unlimited. She was hired the following week. In this scenario, the predictor variable is Sumaira's _____.

A multiple correlation is the correlation between a combined set of _ variables and a single _ variable.

A professional baseball scout uses the batting average, on-base percentage, throwing ability, and running speed of amateur baseball players to predict their success as professional baseball players. This strategy is an example of using _____ as a predictor of the likelihood of success.

Maria had to take an aptitude test before starting graduate school. In this scenario, the criterion variable will be Maria's _____.

Which of the following would be an appropriate measure of central tendency to summarize data on a nominal scale?

Which of the following statements is true about effect size?

A correlation of 0.00 indicates that _____.

A researcher measures the time taken by subjects to press a button following a signal. This measure is an example of a(n) _____ scale.

A regression equation is used to:

The general form of a regression equation is Y = a + bX. In this equation, Y is the score we wish to predict and X is the known score. What is "a"?

Scientific Understanding of Behavior

Where to Start

Ethics in Behavioral Research

Fundamental Research Issues

Measurement Concepts

Observational Methods

Asking People About Themselves: Survey Research

Experimental Design

Conducting Experiments

Complex Experimental Designs

Single-Case, Quasi-Experimental, and Developmental Research

Understanding Research Results: Statistical Inference

Generalization

Filters

Exam 12: Understanding Research Results: Description and Correlation

Which of the following would be an appropriate measure of central tendency to summarize data on an ordinal scale?

The _____ is an appropriate indicator of central tendency only when scores are measured on an interval or ratio scale.

The _____ is a measure of variability that is simply the difference between the highest score and the lowest score.

The principal of a school conducts a survey to compare the number of third grade and sixth grade students who buy their lunch at school. The most appropriate way to describe the results of this survey would be to compare:

Sumaira took an aptitude test for a position with Accountants Unlimited. She was hired the following week. In this scenario, the predictor variable is Sumaira's _____.

A multiple correlation is the correlation between a combined set of _____ variables and a single _____ variable.

A professional baseball scout uses the batting average, on-base percentage, throwing ability, and running speed of amateur baseball players to predict their success as professional baseball players. This strategy is an example of using _____ as a predictor of the likelihood of success.

Maria had to take an aptitude test before starting graduate school. In this scenario, the criterion variable will be Maria's _____.

Which of the following would be an appropriate measure of central tendency to summarize data on a nominal scale?

Which of the following statements is true about effect size?

A correlation of 0.00 indicates that _____.

A researcher measures the time taken by subjects to press a button following a signal. This measure is an example of a(n) _____ scale.

A regression equation is used to:

The general form of a regression equation is Y = a + bX. In this equation, Y is the score we wish to predict and X is the known score. What is "a"?

Scientific Understanding of Behavior

Where to Start

Ethics in Behavioral Research

Fundamental Research Issues

Measurement Concepts

Observational Methods

Asking People About Themselves: Survey Research

Experimental Design

Conducting Experiments

Complex Experimental Designs

Single-Case, Quasi-Experimental, and Developmental Research

Understanding Research Results: Statistical Inference

Generalization

Filters

A multiple correlation is the correlation between a combined set of _ variables and a single _ variable.