A team of psychologists administers two new intelligence tests to 1,000 people. Eighty percent of those taking the tests answer less than 40 percent of the questions correctly on Test 1 and more than 75 percent of the questions correctly on Test 2. Based on this information, the tests
A) appear to have scoring reliability but lack convergent validity.
B) lack split-half reliability but have content validity.
C) seem to lack cross-test reliability and convergent validity.
D) have both internal reliability and content validity.

Question

Quizplus · Accepted Answer

The fact that 80% of the participants answered poorly on Test 1 and performed well on Test 2 suggests that the tests lack cross-test reliability, meaning that they do not consistently measure the same construct. Additionally, the lack of overlap between the results of Test 1 and Test 2 suggests a lack of convergent validity, which means that the two tests are not measuring the same construct (intelligence) in the same way.

A Team of Psychologists Administers Two New Intelligence Tests to 1,000