What does intertester reliability refer to in assessments?

Intertester reliability refers specifically to the consistency of results among different evaluators or raters who are administering the same assessment. This concept is vital in educational settings, especially in early childhood education, because it ensures that different individuals evaluating a child's performance arrive at similar conclusions regarding that performance.

When multiple assessors evaluate the same responses or behaviors and generate comparable results, it indicates that the assessment tool is reliable and that it yields consistent outcomes regardless of who administers or scores the assessment. This is particularly important in maintaining fairness and accuracy in testing and can help educators make informed decisions about instruction and support for students.

In contrast, the other options do not capture the essence of intertester reliability. The accuracy of test-taker responses involves the correctness of what the test-taker has provided but does not speak to the consistency across different evaluators. The speed of test completion might be relevant for practical reasons but does not pertain to reliability in scoring or assessment consistency. Finally, the relevance of test questions addresses the alignment of content rather than how consistently different testers arrive at the same scores or interpretations.