An alternative to concurrent validity involves comparing a test score at one point in time with another measure of language performance obtained sometime subsequently.

They reported a favorable analysis in terms of internal consistency, test-retest reliability, and concurrent validity.

The term "concurrent validity" is reserved for demonstrations relating a measure to other concrete criteria assessed simultaneously.

In Standards for Educational & Psychological Tests, it states, "concurrent validity reflects only the status quo at a particular time."

The difference between concurrent validity and predictive validity rests solely on the time at which the two measures are administered.

Test-retest reliability has ranged from .89 to .92 and concurrent validity with other measures .88 to .94.

Content validity and concurrent validity have ranged from .94 to.96.

Predictive validity shares similarities with concurrent validity in that both are generally measured as correlations between a test and some criterion measure.

In a study of concurrent validity the test is administered at the same time as the criterion is collected.

The Strong Interest Inventory is high in both predictive and concurrent validity (Donnay, 1997).