视觉保持测验的信度与效度研究

A Study on Reliability and Validity of Visual Retention Test.

本文对视觉保持测验(Visual Retention Test,简称VRT)的信度和效度进行研究。结果表明VRT复本重测信度(C式与D式)在0.80～0.82水平,其测量标准误分别为0.76、1.29,评分者信度系数均在0.91以上。VRT与视觉再生、木块图、数字广度等分测验有一定相关,相关系数为0.52～0.89之间。VRT对脑病组和健康成人样本所有被试进行检验的总正确符合率分别达87.15％、84.80％。表明该测验具有较好的稳定性和有效性。

The alternate form reliability, standard error of Measurement and Scorer—Scorer reliability among VRT, were examined. For the examining of validity of VRT, we carried out some coefficients of correlatoion between other performance of tests such as WAIS—RC, WMS, and a comparison of results of VRT between normals and brain damaged patients. The results showed that (1) the alternate—form reliability (form C、D of VRT)were 0.80～0.82 and it's standard errors of measurement were 0.76, 1.29; Scorer-Scorer reliability coefficients were mainly over 0. 91. (2) VRT had moderately high correlation with subtests of visual reproduction in WMS, block design and digit span in WAIS-RC. The authors also found that VRT had certain discriminative effects to brain damaged patients and the total hit rates were about 87. 15％, 84.80％. These results showed that the test was highly reliable and valiable