Dr. Kfir conducted a study that involved administration of the same scale at two different times approximately one month apart. Dr. Kfir noticed that the participants' scores on the second administration were much higher than the first administration, which suggested greater familiarity with the questions and tasks. This greater familiarity may lead participants to answer how they believe Dr. Kfir wants them to and may be an example of:
A) bias.
B) a random error.
C) an error of central tendency.
D) a validity issue.

Question

Quizplus · Accepted Answer

The increase in scores due to familiarity with the test suggests a systematic error, which is a type of bias. Participants may respond in a way they think is expected, rather than how they truly feel or think, leading to biased results.

Dr Kfir Conducted a Study That Involved Administration of the Same