Which action is likely to enhance the validity of a selection instrument?

The action that is likely to enhance the validity of a selection instrument involves ensuring that interview questions use common language so candidates understand what is being asked. Validity in a selection instrument refers to the extent to which it accurately measures what it is intended to measure—in this case, a candidate's qualifications and fit for a position.

When interview questions are formulated using common language, it allows candidates from diverse backgrounds to comprehend and respond appropriately. This minimizes misunderstandings that could lead to inaccurate assessments of a candidate’s capabilities. Clear communication is essential for eliciting meaningful responses that directly reflect the candidate’s skills, experiences, and suitability for the job. By using language that is accessible to all candidates, the selection instrument produces more reliable and valid results, as it ensures that differences in answers are due to the candidates' qualifications rather than confusion over the questions.

In contrast, open-ended questions can provide valuable insights but do not necessarily enhance validity if the questions are ambiguous or if candidates misinterpret them. Limiting the number of interview questions to just five may lead to a lack of depth in evaluation, potentially overlooking important aspects of a candidate's abilities. Additionally, using technical jargon might alienate candidates who lack familiarity with specific terminology, which can skew the results and undermine the validity