If we found a correlation of +.32,the calculation of the strength of the relationship (h2)would indicate that we observed a _____ relationship between the two variables.

A) weak B) moderate C) strong D) insufficient information to determine A) weak B) moderate C) strong D) insufficient information to determine

Exam 13: Pearson Correlation and Regression: Inferential Aspects

A researcher believes that an extroverted personality is positively related to self-esteem.She obtains measures of both variables for 25 people,and calculates a correlation coefficient of .35.If the alpha level is .05,directional test,how would this result be reported in a psychological journal?

(Multiple Choice)

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Question 121

Which of the following values represents the weakest correlation between variables?

(Multiple Choice)

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Question 122

Suppose you were interested in conducting a study examining how ratings of similarity between oneself and another person were related to how attracted one is to the other person.You conduct this study by giving participants a description of a person named "Sarah." Participants are asked to read the description and then rate on a scale from 1 to 10 how similar Sarah is to themselves.You also ask each participant to rate on a scale from 1 to 20 how likeable they think Sarah is. X = rating of similarity to oneself Y = rating of likability of the target ("Sarah") 62 people participate in your study,and you obtain the following data: $\bar{X}=6.00$ SCP = 66 $\bar{Y}=10.00$ SS_X = 40 SS_Y = 136 What is the regression line for this data?

(Essay)

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Question 123

If the degrees of freedom of the Pearson correlation is 0,how many pairs of scores are there?

(Multiple Choice)

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Question 124

Fisher's transformation of r to z permits us to _____.

(Multiple Choice)

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Question 125

The _____ of the estimated standard error of estimate provides a measure of the amount of predictive error that occurs.

(Multiple Choice)

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Question 126

The test of the null hypothesis that ñ = 0 is based on the assumption that the variability of Y scores in the population is the same at each value of X.

(True/False)

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Question 127

The values of _ are estimates of _,respectively.

(Multiple Choice)

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Question 128

If you compute a statistically significant negative r between two variables (X and Y),this tells you that _____.

(Multiple Choice)

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Question 129

The sampling distribution of the population correlation coefficient is ____ when the population coefficient is equal to 0.

(Multiple Choice)

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Question 130

When the population correlation coefficient is zero and the scores in the population are (bivariate)normally distributed,then as N increases the distribution of the sample correlation coefficients tends,somewhat slowly,toward a binomial distribution.

(True/False)

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Question 131

A researcher was interested in whether testosterone was related to aggression.Testing 18 male subjects,he found a correlation coefficient of .62.If the standard deviation estimate for Y was 13.2,what is the estimated standard error of estimate?

(Multiple Choice)

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Question 132

When testing the significance of a correlation,we use the alpha level and the degrees of freedom value equal to ______.

(Multiple Choice)

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Question 133

If X helps to predict Y,then the estimated standard error of estimate will be larger than the estimated standard deviation of Y,and the better the predictor X is,the larger the estimated standard error of estimate will be.

(True/False)

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Question 134

An important characteristic of regression is that _____ can be extended to individuals who were not included in the original data set.

(Multiple Choice)

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Question 135

In the context of regression,the variable being predicted,Y,is formally known as the dependent or _ variable;the variable from which predictions are made,X,is formally known as the independent or _ variable.

(Multiple Choice)

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Question 136

The slope indicates the number of units Y is predicted to change given a _____ in X.

(Multiple Choice)

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Question 137

The linear model has the general form Y = á + âX + å.

(True/False)

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Question 138

If we found a correlation of +.32,the calculation of the strength of the relationship (h²)would indicate that we observed a _____ relationship between the two variables.

(Multiple Choice)

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Question 139

When the population correlation is _ and the scores in the population are (bivariate.normally distributed,then as N increases the distribution of the sample correlation coefficient tends,somewhat slowly,toward a _.

(Multiple Choice)

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Question 140

Showing 121 - 140 of 143

A researcher believes that an extroverted personality is positively related to self-esteem.She obtains measures of both variables for 25 people,and calculates a correlation coefficient of .35.If the alpha level is .05,directional test,how would this result be reported in a psychological journal?

Which of the following values represents the weakest correlation between variables?

If the degrees of freedom of the Pearson correlation is 0,how many pairs of scores are there?

Fisher's transformation of r to z permits us to _____.

The _____ of the estimated standard error of estimate provides a measure of the amount of predictive error that occurs.

The test of the null hypothesis that ñ = 0 is based on the assumption that the variability of Y scores in the population is the same at each value of X.

The values of _ are estimates of _,respectively.

If you compute a statistically significant negative r between two variables (X and Y),this tells you that _____.

The sampling distribution of the population correlation coefficient is ____ when the population coefficient is equal to 0.

When the population correlation coefficient is zero and the scores in the population are (bivariate)normally distributed,then as N increases the distribution of the sample correlation coefficients tends,somewhat slowly,toward a binomial distribution.

A researcher was interested in whether testosterone was related to aggression.Testing 18 male subjects,he found a correlation coefficient of .62.If the standard deviation estimate for Y was 13.2,what is the estimated standard error of estimate?

When testing the significance of a correlation,we use the alpha level and the degrees of freedom value equal to ______.

If X helps to predict Y,then the estimated standard error of estimate will be larger than the estimated standard deviation of Y,and the better the predictor X is,the larger the estimated standard error of estimate will be.

An important characteristic of regression is that _____ can be extended to individuals who were not included in the original data set.

In the context of regression,the variable being predicted,Y,is formally known as the dependent or _ variable;the variable from which predictions are made,X,is formally known as the independent or _ variable.

The slope indicates the number of units Y is predicted to change given a _____ in X.

The linear model has the general form Y = á + âX + å.

If we found a correlation of +.32,the calculation of the strength of the relationship (h²)would indicate that we observed a _____ relationship between the two variables.

When the population correlation is _ and the scores in the population are (bivariate.normally distributed,then as N increases the distribution of the sample correlation coefficient tends,somewhat slowly,toward a _.

Introduction and Mathematical Preliminaries

Frequency and Probability Distributions

Measures of Central Tendency and Variability

Percentiles,percentile Ranks,standard Scores,and the Normal Distribution

Pearson Correlation and Regression: Descriptive Aspects

Probability

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

Principles of Research Design and Statistical Preliminaries for Analyzing Bivariate Relationships

Independent Groups T-Test

Correlated Groups T-Test

One-Way Repeated Measures Analysis of Variance

Chi-Square Test

Nonparametric Statistics

Two-Way Between-Subjects Analysis of Variance

Overview and Extension: Statistical Tests for More Complex Designs

Filters

Exam 13: Pearson Correlation and Regression: Inferential Aspects

A researcher believes that an extroverted personality is positively related to self-esteem.She obtains measures of both variables for 25 people,and calculates a correlation coefficient of .35.If the alpha level is .05,directional test,how would this result be reported in a psychological journal?

Which of the following values represents the weakest correlation between variables?

If the degrees of freedom of the Pearson correlation is 0,how many pairs of scores are there?

Fisher's transformation of r to z permits us to _____.

The _____ of the estimated standard error of estimate provides a measure of the amount of predictive error that occurs.

The test of the null hypothesis that ñ = 0 is based on the assumption that the variability of Y scores in the population is the same at each value of X.

The values of _____ are estimates of _____,respectively.

If you compute a statistically significant negative r between two variables (X and Y),this tells you that _____.

The sampling distribution of the population correlation coefficient is ____ when the population coefficient is equal to 0.

When the population correlation coefficient is zero and the scores in the population are (bivariate)normally distributed,then as N increases the distribution of the sample correlation coefficients tends,somewhat slowly,toward a binomial distribution.

A researcher was interested in whether testosterone was related to aggression.Testing 18 male subjects,he found a correlation coefficient of .62.If the standard deviation estimate for Y was 13.2,what is the estimated standard error of estimate?

When testing the significance of a correlation,we use the alpha level and the degrees of freedom value equal to ______.

If X helps to predict Y,then the estimated standard error of estimate will be larger than the estimated standard deviation of Y,and the better the predictor X is,the larger the estimated standard error of estimate will be.

An important characteristic of regression is that _____ can be extended to individuals who were not included in the original data set.

In the context of regression,the variable being predicted,Y,is formally known as the dependent or _____ variable;the variable from which predictions are made,X,is formally known as the independent or _____ variable.

The slope indicates the number of units Y is predicted to change given a _____ in X.

The linear model has the general form Y = á + âX + å.

If we found a correlation of +.32,the calculation of the strength of the relationship (h2)would indicate that we observed a _____ relationship between the two variables.

When the population correlation is _____ and the scores in the population are (bivariate.normally distributed,then as N increases the distribution of the sample correlation coefficient tends,somewhat slowly,toward a _____.

Introduction and Mathematical Preliminaries

Frequency and Probability Distributions

Measures of Central Tendency and Variability

Percentiles,percentile Ranks,standard Scores,and the Normal Distribution

Pearson Correlation and Regression: Descriptive Aspects

Probability

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

Principles of Research Design and Statistical Preliminaries for Analyzing Bivariate Relationships

Independent Groups T-Test

Correlated Groups T-Test

One-Way Repeated Measures Analysis of Variance

Chi-Square Test

Nonparametric Statistics

Two-Way Between-Subjects Analysis of Variance

Overview and Extension: Statistical Tests for More Complex Designs

Filters

The values of _ are estimates of _,respectively.

In the context of regression,the variable being predicted,Y,is formally known as the dependent or _ variable;the variable from which predictions are made,X,is formally known as the independent or _ variable.

If we found a correlation of +.32,the calculation of the strength of the relationship (h²)would indicate that we observed a _____ relationship between the two variables.

When the population correlation is _ and the scores in the population are (bivariate.normally distributed,then as N increases the distribution of the sample correlation coefficient tends,somewhat slowly,toward a _.