Spreat S
Am J Ment Defic. 1980 Jul;85(1):61-8.
The validity of the Adaptive Behavior Scale (ABS) for placement purposes was estimated. Subjects were 95 formerly institutionalized retarded persons, 97 institutional residents who were referred for discharge, and 178 current institutional residents. A stratified random-sampling process was used to create two equal-size samples. The ABS domain scores of the 185 individuals in the derivation sample were submitted to stepwise multiple discriminant function analysis. A linear combination of seven ABS domains explained 34 percent of the variance in group membership and correctly classified 60 percent of the derivation sample. This same combination correctly classified 49 percent of the cross-validation sample. Factor scores were calculated and submitted to similar statistical analysis. A linear combination of three factors correctly classified 54 percent of the derivation sample, and no shrinkage was observed upon cross-validation. Results suggest that knowledge of an individual's ABS scores would enable a test user to make estimates of group membership. Additionally, factor scores, with their increased reliability and greater predictive validity upon cross-validation, appeared to be a more appropriate unit of analysis than were domain scores for the ABS.
对用于安置目的的适应性行为量表（ABS）的效度进行了评估。研究对象包括95名曾在机构中生活的智力障碍者、97名被转介出院的机构居民以及178名当前的机构居民。采用分层随机抽样方法创建了两个规模相等的样本。对推导样本中185名个体的ABS领域得分进行了逐步多元判别函数分析。七个ABS领域的线性组合解释了组成员差异中34%的方差，并正确分类了60%的推导样本。同一组合正确分类了交叉验证样本的49%。计算了因子得分并进行了类似的统计分析。三个因子的线性组合正确分类了54%的推导样本，交叉验证时未观察到收缩现象。结果表明，了解个体的ABS得分将使测试使用者能够对组成员身份进行估计。此外，因子得分在交叉验证时具有更高的可靠性和更大的预测效度，似乎比ABS的领域得分更适合作为分析单位。
