继续自学分享学习心得:经查,stata中alpha命令是效度命令,非常简单,alpha X1- X10,其中 X1- X10表示变量X1到X10的含义,然后会输出结果,举例:. alpha var5- var8
Test scale = mean(unstandardized items)
Average interitem covariance: 1.499568
Number of items in the scale: 2
Scale reliability coefficient: 0.8240
这个0.8240应该是内部一致性系数。还请大侠批评指正啊!