Statistical Methods for Dichotomous Variables

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Which type of test measures a person's potential for learning or acquiring skills?

Maximum Performance test

Speed test

Aptitude test (correct)

Achievement test

What is the term for a set of items that are designed to measure characteristics of human beings that pertain to behavior?

Test

Psychological test (correct)

Group test

Item

What type of test can be administered to more than one person at a time by a single examiner?

Individual test

Group test (correct)

Speed test

Achievement test

Which of the following is a data reduction technique?

Principal components Signup and view all the answers

Who is considered the Father of Classical Test Theory?

Charles Spearman Signup and view all the answers

What is the major assumption in Classical Test Theory regarding errors of measurement?

Errors of measurement are random Signup and view all the answers

What does the standard error of measurement tell us?

How much a score varies from the true score Signup and view all the answers

Which correlation coefficient is used when both data are ordinal?

Spearman's rho Signup and view all the answers

What is the formula for calculating Z-score?

Z = (X-M)/SD Signup and view all the answers

Which test is used to evaluate the relationship between two variables in the population?

Chi Square Test for Independence Signup and view all the answers

What is the measure of symmetry in a distribution called?

Skewness Signup and view all the answers

Which formula is used to convert a raw score into a Z-score?

$X = m(Z) + SD$ Signup and view all the answers

What does the 50th quartile represent in a frequency distribution?

The median Signup and view all the answers

What is the purpose of norm-referenced tests?

To compare each person with a norm Signup and view all the answers

What does the regression coefficient (b) represent in a regression equation?

The slope of the regression line Signup and view all the answers

Which correlation coefficient is used when both variables are dichotomous and at least one of them is a true dichotomous variable?

Phi coefficient Signup and view all the answers

What is the measure of accuracy of prediction in regression analysis?

Standard Error of Estimate Signup and view all the answers

What does the coefficient of determination (r^2) tell us?

The proportion of the total variation in scores on Y that we know as a function of information about X Signup and view all the answers

What is the measure of non-association between two variables called?

Coefficient of Alienation Signup and view all the answers

Who is considered the Father of Comparative Psychology?

Sir Francis Galton Signup and view all the answers

Who is considered the Father of Mental Testing?

Alfred Binet Signup and view all the answers

What is the purpose of a standardized achievement test?

To assess mental ability Signup and view all the answers

Which of the following is a property of an interval scale?

The difference between two points at any place on the scale has the same meaning as the difference between two other points that differ by the same number of scale units Signup and view all the answers

Which of the following is an example of an ordinal scale?

IQ scores Signup and view all the answers

What is the purpose of exploratory data analysis according to the text?

To summarize the main characteristics of a collection of quantitative information Signup and view all the answers

Which type of test measures a person's potential for learning or acquiring skills?

Aptitude test Signup and view all the answers

What is the measure of non-association between two variables called?

Coefficient of non-determination Signup and view all the answers

What is the purpose of exploratory data analysis according to the text?

To identify outliers and patterns in data Signup and view all the answers

Which of the following individuals is considered the Father of Modern Psychology?

Wilhelm Wundt Signup and view all the answers

Who is credited with developing the first standardized intelligence test?

Alfred Binet Signup and view all the answers

Which individual opened the world's first school for the mentally retarded?

Edouard Seguin Signup and view all the answers

Which of the following is NOT a property of an interval scale?

Absolute zero Signup and view all the answers

Which of the following is an example of a nominal scale?

Naming objects Signup and view all the answers

What is the purpose of exploratory data analysis?

To gather and display clues Signup and view all the answers

Which correlation coefficient is used when both data are nominal in nature (for true dichotomy)?

Phi coefficient Signup and view all the answers

What is the measure of peakedness in a distribution called?

Kurtosis Signup and view all the answers

What is the measure of symmetry in a distribution called?

Skewness Signup and view all the answers

What is the formula for calculating the Z-score?

Z = (X - M)/SD Signup and view all the answers

Which correlation coefficient is used when both variables are dichotomous and at least one of them is a true dichotomous variable?

Point biserial correlation Signup and view all the answers

What is the measure of accuracy of prediction in regression analysis?

Standard Error of Estimate Signup and view all the answers

What is the major assumption in Classical Test Theory regarding errors of measurement?

Errors of measurement are random and have a mean of zero Signup and view all the answers

What does the regression coefficient (b) represent in a regression equation?

The slope of the regression line Signup and view all the answers

Which of the following is NOT a data reduction technique?

Item response theory Signup and view all the answers

Which correlation coefficient is used when both variables are nominal?

Phi coefficient Signup and view all the answers

Who proposed the product moment correlation?

Karl Pearson Signup and view all the answers

What is the difference between the observed score and the true score in Classical Test Theory?

Measurement error Signup and view all the answers

Which correlation coefficient is used to determine the degree of variation in one variable that can be estimated from knowledge about variation in the other variable?

Pearson Product Moment Correlation Coefficient Signup and view all the answers

What is the purpose of normative data in psychological testing?

To provide information about the middle level of the distribution and representative groups Signup and view all the answers

Statistical Methods for Dichotomous Variables

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Questions and Answers

Which type of test measures a person's potential for learning or acquiring skills?

What is the term for a set of items that are designed to measure characteristics of human beings that pertain to behavior?

What type of test can be administered to more than one person at a time by a single examiner?

Which of the following is a data reduction technique?

Who is considered the Father of Classical Test Theory?

What is the major assumption in Classical Test Theory regarding errors of measurement?

What does the standard error of measurement tell us?

Which correlation coefficient is used when both data are ordinal?

What is the formula for calculating Z-score?

Which test is used to evaluate the relationship between two variables in the population?

What is the measure of symmetry in a distribution called?

Which formula is used to convert a raw score into a Z-score?

What does the 50th quartile represent in a frequency distribution?

What is the purpose of norm-referenced tests?

What does the regression coefficient (b) represent in a regression equation?

Which correlation coefficient is used when both variables are dichotomous and at least one of them is a true dichotomous variable?

What is the measure of accuracy of prediction in regression analysis?

What does the coefficient of determination (r^2) tell us?

What is the measure of non-association between two variables called?

Who is considered the Father of Comparative Psychology?

Who is considered the Father of Mental Testing?

What is the purpose of a standardized achievement test?

Which of the following is a property of an interval scale?

Which of the following is an example of an ordinal scale?

What is the purpose of exploratory data analysis according to the text?

Which type of test measures a person's potential for learning or acquiring skills?

What is the measure of non-association between two variables called?

What is the purpose of exploratory data analysis according to the text?

Which of the following individuals is considered the Father of Modern Psychology?

Who is credited with developing the first standardized intelligence test?

Which individual opened the world's first school for the mentally retarded?

Which of the following is NOT a property of an interval scale?

Which of the following is an example of a nominal scale?

What is the purpose of exploratory data analysis?

Which correlation coefficient is used when both data are nominal in nature (for true dichotomy)?

What is the measure of peakedness in a distribution called?

What is the measure of symmetry in a distribution called?

What is the formula for calculating the Z-score?

Which correlation coefficient is used when both variables are dichotomous and at least one of them is a true dichotomous variable?

What is the measure of accuracy of prediction in regression analysis?

What is the major assumption in Classical Test Theory regarding errors of measurement?

What does the regression coefficient (b) represent in a regression equation?

Which of the following is NOT a data reduction technique?

Which correlation coefficient is used when both variables are nominal?

Who proposed the product moment correlation?

What is the difference between the observed score and the true score in Classical Test Theory?

Which correlation coefficient is used to determine the degree of variation in one variable that can be estimated from knowledge about variation in the other variable?

What is the purpose of normative data in psychological testing?

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