A psychologist is interested in 4-year-old Jacob's knowledge of the differences between animals and vehicles. The psychologist gives Jacob a multiple-choice picture test in which he must write the letter of the correct answer on a separate answer sheet. However, Jacob has trouble identifying and writing some letters. On two separate occasions, Jacob receives the same score on the test. This method has:

Question

Quizplus · Accepted Answer

The method shows good reliability because Jacob received the same score on two separate occasions, indicating consistency. However, it likely has poor validity because Jacob's difficulty with letters may prevent the test from accurately assessing his knowledge of animals and vehicles.

A Psychologist Is Interested in 4-Year-Old Jacob's Knowledge of the Differences