Psychometric instrument development/Quiz

Exploratory factor analysis practice quiz

1 A measure of general intelligence is completed by 221 people on each of two occasions (4 weeks apart). The correlation between the two attempts was 0.85. What does this correlation demonstrate?

	Inter-rater reliability
	Internal consistency
	Concurrent validity
	Discriminant validity
	Test-retest reliability

2 To determine which variables relate to which factors, a researcher would use:

	Factor loadings
	Communalities
	Eigen values
	Beta coefficients

3 Averaging the scores for a set of related items creates what type of composite score?:

	Regression-weighted
	Unit-weighted
	Both of the above
	None of the above

4 Cronbach's alpha (α) is a measure of:

	Communality
	Internal consistency
	Test-retest reliability
	Construct validity
	None of the above

5 In SPSS, if the "Alpha if item deleted" value is lower than than the Cronbach's alpha, what should probably be done?

	Keep the item
	Drop the item
	Impossible to know
	None of the above

6 Measurement error consists of:

	Systematic error
	Random error
	True score

7 Measures designed for individual assessment need _______________ measures designed for research.

	higher reliability than
	lower reliability than
	equivalent reliability to

8 When calculating regression-weighted composite scores, where do the weights come from?

	Correlations
	Reliability analysis
	Validity analysis
	Exploratory factor analysis
	Multiple linear regression

9 A fuzzy construct is best measured by:

	Multiple related items
	Multiple unrelated items
	Single item

10 In psychometrics, validity is:

	Repeatability
	Internal consistency
	Inter-rater reliability
	When a measure measures what it is intended to measure