Question 1

What is the third variable problem and how does the partial correlation technique help with this problem?

Accepted Answer

The third-variable problem is one in whi

Question 2

Which of the following correlation coefficients represents the variables with the strongest degree of relationship?

Accepted Answer

A) +.99 
B) -1.00 
C) +.01 
D) -.59 
A) +.99 
B) -1.00 
C) +.01 
D) -.59

Question 3

In a recent study it was found that the correlation between self-esteem and depression was ?.64.Explain what this means.Calculate the coefficient of determination for this correlation and explain what information this provides.

Accepted Answer

This is a moderately strong negative cor

Question 4

An indication of the strength of the relationship between two variables is the _____.

Accepted Answer

A) slope 
B) sign 
C) scatterplot 
D) magnitude 
A) slope 
B) sign 
C) scatterplot 
D) magnitude

Question 5

In the case of a negative relationship,as scores on X _____,scores on Y _____.

Accepted Answer

A) increase; decrease 
B) increase; increase 
C) decrease; decrease 
D) none of the options is correct 
A) increase; decrease 
B) increase; increase 
C) decrease; decrease 
D) none of the options is correct

Question 6

_____ is a procedure which allows us to predict an individual's score on one variable based on knowing one or more other variables.

Accepted Answer

A) Pearson product-moment correlation coefficient 
B) Coefficient of determination 
C) Regression analysis 
D) Point-biserial correlation coefficient 
A) Pearson product-moment correlation coefficient 
B) Coefficient of determination 
C) Regression analysis 
D) Point-biserial correlation coefficient

Question 7

Which of the following correlation coefficients represents the variables with the weakest degree of relationship?

Accepted Answer

A) +.99 
B) -1.00 
C) +.01 
D) -.59 
A) +.99 
B) -1.00 
C) +.01 
D) -.59

Question 8

Explain when each of the correlation coefficients listed below should be used.

Accepted Answer

Pearson product-moment correlation coef

Question 9

Suppose that the correlation between height and weight for adults is +.75.What proportion (or percent)of the variability in weight is accounted for by the relationship with height?

Accepted Answer

A) 75% 
B) 25% 
C) 56% 
D) unable to determine 
A) 75% 
B) 25% 
C) 56% 
D) unable to determine

Question 10

The problem of _____ can often be identified by using a _____.

Accepted Answer

A) causality; point biserial correlation 
B) directionality; phi coefficient 
C) third variables; partial correlation 
D) restrictive range; point biserial correlation 
A) causality; point biserial correlation 
B) directionality; phi coefficient 
C) third variables; partial correlation 
D) restrictive range; point biserial correlation

Question 11

If the points on a scatterplot are spread all over the graph,this would suggest that the two variables depicted are

Accepted Answer

A) normally distributed. 
B) positively correlated. 
C) strongly related. 
D) not correlated. 
A) normally distributed. 
B) positively correlated. 
C) strongly related. 
D) not correlated.

Question 12

What is a person-who argument?

Accepted Answer

A person who argument is argui

Question 13

In a recent study it was found that the correlation between self-esteem and depression was ?.64.Tom interprets this to mean that low levels of self-esteem lead to high levels of depression and vice versa.How is Tom misinterpreting these data?

Accepted Answer

Tom is assuming both causality-that one

Question 14

The _____ is a measure of the proportion of variance in one of the variables that is accounted for by the other variable.

Accepted Answer

A) Spearman rank-order correlation coefficient 
B) coefficient of determination 
C) point-biserial correlation coefficient 
D) Pearson product-moment correlation coefficient 
A) Spearman rank-order correlation coefficient 
B) coefficient of determination 
C) point-biserial correlation coefficient 
D) Pearson product-moment correlation coefficient

Question 15

Two nominal variables are to _____ coefficient and two ordinal variables are to _____ coefficient.

Accepted Answer

A) Pearson product-moment correlation; Spearman rank-order correlation 
B) Spearman rank-order correlation; Pearson product-moment correlation 
C) Phi; Spearman rank-order correlation 
D) Point-biserial correlation; Spearman rank-order correlation 
A) Pearson product-moment correlation; Spearman rank-order correlation 
B) Spearman rank-order correlation; Pearson product-moment correlation 
C) Phi; Spearman rank-order correlation 
D) Point-biserial correlation; Spearman rank-order correlation

Question 16

The problem of a correlation between two variables being dependent on another variable is called

Accepted Answer

A) the third variable problem. 
B) causality. 
C) directionality. 
D) restrictive range. 
A) the third variable problem. 
B) causality. 
C) directionality. 
D) restrictive range.

Question 17

If both variables are measured on a nominal scale,what type of correlation coefficient is appropriate?

Accepted Answer

A) Spearman's rank-order correlation coefficient 
B) phi coefficient 
C) point-biserial correlation coefficient 
D) none,because correlations cannot be computed on nominal data 
A) Spearman's rank-order correlation coefficient 
B) phi coefficient 
C) point-biserial correlation coefficient 
D) none,because correlations cannot be computed on nominal data

What is the third variable problem and how does the partial correlation technique help with this problem?

Which of the following correlation coefficients represents the variables with the strongest degree of relationship?

In a recent study it was found that the correlation between self-esteem and depression was ?.64.Explain what this means.Calculate the coefficient of determination for this correlation and explain what information this provides.

An indication of the strength of the relationship between two variables is the _____.

In the case of a negative relationship,as scores on X _,scores on Y _.

_____ is a procedure which allows us to predict an individual's score on one variable based on knowing one or more other variables.

Which of the following correlation coefficients represents the variables with the weakest degree of relationship?

Explain when each of the correlation coefficients listed below should be used.

Suppose that the correlation between height and weight for adults is +.75.What proportion (or percent)of the variability in weight is accounted for by the relationship with height?

The problem of _ can often be identified by using a _.

If the points on a scatterplot are spread all over the graph,this would suggest that the two variables depicted are

What is a person-who argument?

In a recent study it was found that the correlation between self-esteem and depression was ?.64.Tom interprets this to mean that low levels of self-esteem lead to high levels of depression and vice versa.How is Tom misinterpreting these data?

The _____ is a measure of the proportion of variance in one of the variables that is accounted for by the other variable.

Two nominal variables are to _ coefficient and two ordinal variables are to _ coefficient.

The problem of a correlation between two variables being dependent on another variable is called

If both variables are measured on a nominal scale,what type of correlation coefficient is appropriate?

Thinking Like a Scientist

Getting Started: Ideas, resources, and Ethics

Defining, measuring, and Manipulating Variables

Descriptive Methods

Data Organization and Descriptive Statistics

Probability and Hypothesis Testing

Introduction to Inferential Statistics

The Logic of Experimental Design

Inferential Statistics: Two-Group Designs

Experimental Designs With More Than Two Levels of an Independent Variable

Complex Experimental Design

Quasi-Experimental and Single-Case Designs

Apa Communication Guidelines

Filters

Exam 6: Correlational Methods and Statistics

What is the third variable problem and how does the partial correlation technique help with this problem?

Which of the following correlation coefficients represents the variables with the strongest degree of relationship?

In a recent study it was found that the correlation between self-esteem and depression was ?.64.Explain what this means.Calculate the coefficient of determination for this correlation and explain what information this provides.

An indication of the strength of the relationship between two variables is the _____.

In the case of a negative relationship,as scores on X _____,scores on Y _____.

_____ is a procedure which allows us to predict an individual's score on one variable based on knowing one or more other variables.

Which of the following correlation coefficients represents the variables with the weakest degree of relationship?

Explain when each of the correlation coefficients listed below should be used.

Suppose that the correlation between height and weight for adults is +.75.What proportion (or percent)of the variability in weight is accounted for by the relationship with height?

The problem of _____ can often be identified by using a _____.

If the points on a scatterplot are spread all over the graph,this would suggest that the two variables depicted are

What is a person-who argument?

In a recent study it was found that the correlation between self-esteem and depression was ?.64.Tom interprets this to mean that low levels of self-esteem lead to high levels of depression and vice versa.How is Tom misinterpreting these data?

The _____ is a measure of the proportion of variance in one of the variables that is accounted for by the other variable.

Two nominal variables are to _____ coefficient and two ordinal variables are to _____ coefficient.

The problem of a correlation between two variables being dependent on another variable is called

If both variables are measured on a nominal scale,what type of correlation coefficient is appropriate?

Thinking Like a Scientist

Getting Started: Ideas, resources, and Ethics

Defining, measuring, and Manipulating Variables

Descriptive Methods

Data Organization and Descriptive Statistics

Probability and Hypothesis Testing

Introduction to Inferential Statistics

The Logic of Experimental Design

Inferential Statistics: Two-Group Designs

Experimental Designs With More Than Two Levels of an Independent Variable

Complex Experimental Design

Quasi-Experimental and Single-Case Designs

Apa Communication Guidelines

Filters

In the case of a negative relationship,as scores on X _,scores on Y _.

The problem of _ can often be identified by using a _.

Two nominal variables are to _ coefficient and two ordinal variables are to _ coefficient.