For a variable X, a reliability coefficient of r_xx that equals .75 indicates that _____ of the variance in the scores is due to true differences in the level of the characteristic of interest, and that _____ is due to other factors. A) 75%; 25% B) 25%; 75% C) 75%; 75% D) 50%; 25%

Question

Quizplus · Accepted Answer

The reliability coefficient is defined as the proportion of true variance in the scores relative to the total variance in the scores. In this case, r_xx = .75, which means that 75% of the variance in the scores is due to true differences in the level of the characteristic of interest (i.e., the variable being measured), and 25% is due to other factors (e.g., measurement error, situational factors, individual differences, etc.). Therefore, the correct answer is A (75%; 25%).

For a Variable X, a Reliability Coefficient of Rxx That

For a Variable X, a Reliability Coefficient of R_xx That