Abstract
In two studies, the alternate-form reliability of the Snodgrass picture fragment completion test of implicit memory (Snodgrass, Smith, Feenan, & Corwin, 1987) was examined. In this test, identification thresholds are established for fragmented pictures. The same fragmented pictures are then shown again, intermixed with new fragmented pictures. Implicit memory is indicated by a decrease in identification threshold from the first to second presentation. Alternate-form reliability was low to moderate, depending on the measure used, regardless of the length of the test. A third study showed that explicit memory instructions did not increase the reliability. Recommendations for use of the test in correlational and experimental research are presented.
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Wyatt, B.S., Conners, F.A. & Carr, M.D. The snodgrass picture fragment completion test: Alternate-form reliability. Behavior Research Methods, Instruments, & Computers 30, 360–368 (1998). https://doi.org/10.3758/BF03200666
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DOI: https://doi.org/10.3758/BF03200666