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Education QUESTION #6749
Question 1
In Classical Test Theory (CTT), the observed score of a student is represented as: Observed Score = True Score + Error. Which of the following scenarios would MOST increase the error component of a student's observed score?
  • The test items are arranged from easy to difficult
  • The test is administered in a noisy room with poor lighting and students experience test anxiety✔️
  • The teacher uses a two-way table of specification to develop the test
  • The test includes both objective and subjective items
Correct Answer Explanation
Error in CTT refers to any factor beyond the student's true ability that affects the observed score. Poor environmental conditions (noise, lighting) and test anxiety are classic sources of construct-irrelevant variance that inflate the error component, making the observed score a less accurate reflection of true ability.