People who lived in New York City during the 9/11 terrorist attack on the World Trade Center experienced shared challenges due to the attack; what are these effects called?

In the context of standardized testing, ________ refer(s) to data on the performance of large groups of people

a. reliability b. norms c. validity d. testability

In psychological testing,__________refers to the degree to which a test measures what it is supposed to measure

A) reliability B) variability C) validity D) quality E) Select