Correct Answer:
B. Construct Validity
Validity in testing refers to the extent to which a test accurately measures what it is intended to measure. Among the different types, Construct Validity is paramount as it ensures the test effectively measures the theoretical construct or trait it purports to assess, such as intelligence, anxiety, or critical thinking. This involves gathering various forms of evidence to support the interpretation of test scores.
- Content Validity (A) focuses on whether the test items adequately represent the entire domain or content area being measured.
- Face Validity (C) is a superficial judgment, indicating whether a test *appears* to measure what it's supposed to measure to a layperson.
- Predictive Validity (D) is a type of criterion-related validity, assessing how well a test predicts future performance or outcomes.
Therefore, Construct Validity is the most comprehensive type, ensuring the test truly measures the intended underlying concept.