A research report contains the following statement. "The inventory included ten questions, each asked two different ways for a total of twenty questions to determine a domestic violence victim's tendency to experience subsequent victimization. In order to test the reliability of this inventory, we divided the questions into two equivalent ten question inventories. Then, we divided our sample into two equal groups and administered one version of the inventory to each group." What type of reliability is this researcher using?

Question

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The researcher is using split-half reliability, where they divide the inventory into two equal parts and administer them to two separate groups in order to see if the two halves produce similar results. This is different from test-retest reliability (A), which involves administering the same inventory to the same group at two different times, or inter-rater reliability (B), which involves multiple raters assessing the same inventory. Concurrent/benchmark reliability (D) is not applicable in this situation as it involves comparing the results of a new inventory to an already established benchmark.

A Research Report Contains the Following Statement