Dr. Ewell, a developmental psychologist, is planning on conducting a study that involves watching children play together to determine how sharing behavior occurs in same-sex friend pairs compared to opposite-sex friend pairs.
Imagine that Dr. Ewell calculates a correlation (e.g., ICC) for his two raters. Which of the following would be the best value for Dr. Ewell to find?

Question

Quizplus · Accepted Answer

The best value for Dr. Ewell to find would be a high positive correlation, ideally close to 1. This indicates that the two raters have a strong agreement in their observations of the children's sharing behavior. A correlation value of 0.89 is the closest option to 1, making it the best choice. A negative correlation (option A) would indicate that the raters are contradicting each other, and a value of 1.15 (option D) is impossible as correlation values range from -1 to 1. A value of 0.02 (option B) would indicate a weak correlation, which would not provide reliable results for the study.

Dr Ewell, a Developmental Psychologist, Is Planning on Conducting a Study