In a Graph Displaying Family Income in Slakia, the Frequency

question 52

Multiple Choice

In a graph displaying family income in Slakia, the frequency of families with low incomes was far greater than the frequency of families with medium or high incomes. It would appear that the distribution of family incomes in Slakia:

• A)is negatively skewed.
• B)resembles the standard normal curve.
• C)is positively skewed.
• D)has little or no variability.

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Definitions:

Item-total Correlation

The correlation between scores on individual items and the total score on all items of a test or questionnaire.

Convergent Validity

A measure of the degree to which two different assessments of the same concept are correlated, indicating the validity of the constructs.

Face Validity

The extent to which a test appears to measure what it's supposed to measure, making it seem valid at face value.

Concurrent Validity

Concurrent validity is the extent to which test scores or measurements are correlated with other measures or outcomes that are theoretically related and taken at the same time.