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GATE 2025 XH5 (Psychology) – Question 58

Psychometrics · Test Construction and Standardization: Methods of test construction, reliability, validity and norms · 2 marks · Multiple select

Which of the following is/are source(s) of variability that contribute(s) to errors in measurement of estimating reliability?

  1. Reactivity carryover true change over time
  2. Making incorrect predictions or decisions about individuals
  3. Inconsistency of test content non parallel halves
  4. Consistency of test content

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Show answer and explanation

Correct answer: (A) Reactivity carryover true change over time; (C) Inconsistency of test content non parallel halves

Explanation

Errors in reliability estimates come from changes between testings (reactivity, carry-over and true change over time) and from inconsistent content (for example non-parallel halves or forms). Wrong predictions about individuals are a result of unreliability, and consistent content reduces error.