Brothers Sam, age 7, and Ben, age 9, are always fighting. The clinician Ali decides to observe the interactions between Sam and his brother Ben at home. She notes the antecedents and consequences of their fights. Ali asked her colleague, Veronica, to observe Sam and Ben at the same time. There was a high rate of agreement in what they observed. From this we can say that there was a high rate of:
A)Validity.
B)Test-retest reliability.
C)Inter-rater reliability.
D)Diagnostic reliability.

Question

Quizplus · Accepted Answer

The high rate of agreement between Ali and Veronica's observations indicates inter-rater reliability, which refers to the consistency of results between different raters or observers. Validity refers to the accuracy of a test or measure in assessing what it is intended to measure. Test-retest reliability refers to the consistency of results over time with the same test or measure. Diagnostic reliability refers to the consistency of results in diagnosing a particular condition or disorder. While these concepts are related, they are not the best choice in this scenario.

Brothers Sam, Age 7, and Ben, Age 9, Are Always