简易智力测试量表的效度及信度研究

The validity and reliability of the abbreviated Mental Test Scale

目的 探讨简易智力测试量表 (AMT)的效度和信度 ,为临床应用提供客观依据。方法 2组受试对象参加了测试 ,一组为病例组 (38例 ) ,另一组为对照组 (30例 )。 1周内对 2组对象用AMT和简易精神状态量表 (MMSE)进行 2次评估。将AMT结果与MMSE作相关性检验来验证AMT的效度 ;对 2次AMT结果作组间相关性分析来测试AMT的重复测试信度。结果 AMT和MMSE的总分和各分项分的Pearson相关系数r =0 .70 6～ 0 .833;AMT各项内容 2次重复测试结果的组间相关系数ICC =0 .810～ 0 .996;病例组和对照组的AMT总分分别为 (7.60± 2 .5 5 )分、(9.64± 0 .81)分 ,2者间差异有显著性 (P <0 .0 5 )。结论 AMT具有良好的效度和信度 。

Objective To examine the validity and reliability of the abbreviated mental test (AMT) among Chinese subjects. Methods Two groups of subjects participated in the study. One group consisted of 38 patients with neurological disorders and the other 30 normal subjects (control group). They were assessed twice with AMT and mini mental state examination (MMSE) within one week. Results AMT was significantly correlated with MMSE as far as the total score and item scores were concerned( r =0.706～0.833).There were moderate to high correlation in all the items of AMT between the two assessment tools(ICC=0.810～0.996). The AMT scores in the patient group were significantly lower than that in the control group (7.60±2.55 vs 9.64±0.81, P <0.05). Conclusion The AMT is valid and reliable when it is used to quickly screen subjects with cognitive deficits.