Validity
Whether a test measures what is is supposed to measure
Four types of Validity
1) Face Validity
2) Content Validity
3) Criterion Validity
4) Construct Validity
Face Validity
How much a test looks like what it is measuring
Content Validity
Whether your measure fully captures what you are testing
Criterion Validity
The extent to which scores on a measure relate to or predict an external criterion
Construct Validity
Relationship between my measures and other measures
Which correlation is used more for regression
Part
Which correlation is used more for factor analysis
Partial