Which of the following is NOT a type of reliability commonly considered when diagnosing psychological disorders?

• A. Predictive validity
• B. Test-retest reliability
• C. Internal consistency reliability
• D. Inter-rater reliability

Answer: (A)

Verified step by step guidance

1. Step 1: Understand the concept of reliability in psychological assessment. Reliability refers to the consistency or stability of a measurement or diagnosis over time or across different raters or items.
2. Step 2: Identify the common types of reliability used in psychological diagnosis: Test-retest reliability (consistency over time), Internal consistency reliability (consistency across items within a test), and Inter-rater reliability (consistency across different raters or observers).
3. Step 3: Recognize that Predictive validity is not a type of reliability but rather a type of validity, which refers to how well a test predicts future outcomes or behaviors.
4. Step 4: Compare the options given and note that Test-retest reliability, Internal consistency reliability, and Inter-rater reliability are all types of reliability, while Predictive validity is not.
5. Step 5: Conclude that Predictive validity is the correct answer because it is a form of validity, not reliability, and thus is not commonly considered a type of reliability when diagnosing psychological disorders.