Asked by la douce Fleur on Apr 29, 2024
Verified
When we calculate reliability,we know the observed score.What are the two unknown components of the reliability equation?
A) method and error scores
B) means and standard deviations
C) test-retest and interrater scores
D) true and error scores
True Scores
Theoretically, the actual value of a variable, devoid of any measurement error, representing an individual's true ability or trait level.
Error Scores
The difference between observed values and the values predicted by a model, reflecting the amount of inaccuracy or deviation.
Method
A systematic approach or procedure for achieving a particular objective or conducting research.
- Comprehend the process for evaluating and understanding scores in psychological evaluations, including true, observed, and mistake scores.
Verified Answer
JO
Jenaye OneilMay 04, 2024
Final Answer :
D
Explanation :
The two unknown components of the reliability equation are the true scores and the error scores. The reliability equation is: observed score = true score + error score. Therefore, in order to calculate reliability, we need to estimate the amount of variance in the observed scores that is due to true differences between individuals (i.e. the true scores) and the amount of variance that is due to measurement error (i.e. the error scores).
Learning Objectives
- Comprehend the process for evaluating and understanding scores in psychological evaluations, including true, observed, and mistake scores.