Exam 19: Appendix A: Measurement and Statistics

The frequency distribution of a group of test scores must be determined before computing averages and measures of variability.

The correlations between factors and tests are referred to as

On which of the following types of scales does the number "0" represent a true zero?

The major purpose of factor analysis is to find a small number of factors that account for the correlations among a group of variables.

The correct order of the following scales of measurement, from lowest to highest, is

Correlation coefficients range from .00 to 1.00.

Standard scores on intelligence tests are considered to be __________ numbers.

Match the descriptive phrase with statistical term : -sum of scores divided by number of scores

Multiple correlation involves the relationships of multiple independent variables with multiple dependent variables.

The median of any group of scores is equal to all of the following except the

The major purpose of factor rotation is to

Correlated factors result from __________ rotation.

When a test is too easy for a group of examinees the frequency distribution of their scores will probably be

Orthogonal factors are independent, and oblique factors are correlated.

Define four scales of measurements, and give examples of variables that can be measured on each scale.

Predicting a person's standing on variable Y from his or her standing on variable X is least accurate when the correlation between X and Y is

Factor analysis is a procedure for decomposing the variance of test scores into common factor variance, specific factor variance, and error variance.

The frequency distributions of many biological characteristics are approximately normal in shape.

Match the descriptive phrase with statistical term : -index ranging from -1.00 to +1.00

Only when the correlation between two variables is .90 or higher can one be certain that one variable is a cause of the other.