A recent study reported about a new instrument that measures students' motivation for challenging academic tasks. In the study the instrument had been given to a number of children at the beginning of their academic year. After reading the study, Susan wondered if students' responses would be different at the end of the academic year. She decides to conduct a study that administers the instrument several times over the course of an academic year and measures the correlation across administrations. Susan has addressed a concern with which of the following types of reliability?
A) Internal consistency
B) Split-Half
C) Stability
D) Equivalence

Question

Quizplus · Accepted Answer

Susan is interested in measuring the consistency of responses over time, which is a measure of stability. Therefore, she is addressing concerns with stability reliability. Internal consistency measures the consistency of responses within a single administration, split-half reliability assesses the consistency between halves of a test, and equivalence reliability compares results on two versions of a test that measure the same construct.

A Recent Study Reported About a New Instrument That Measures