Groups
Groups
Sign in
Groups
Groups
统计软件学习
Conversations
About
Send feedback
Help
cronbach's alpha coefficient(克朗巴赫系数)的sas计算
106 views
Skip to first unread message
fallwin
unread,
Dec 29, 2007, 8:21:41 PM
12/29/07
Reply to author
Sign in to reply to author
Forward
Sign in to forward
Delete
You do not have permission to delete messages in this group
Copy link
Report message
Show original message
Either email addresses are anonymous for this group or you need the view member email addresses permission to view the original message
to 统计软件学习
cronbach's alpha coefficient 克朗巴赫系数
例24-4 某医生用WHOQOL-100量表调查了50例正常人的生存质量,一周后重复调查一次,结果见表24-4。表中F1-F24是第1次调查
24个方面的得分,T1是第1次调查的总分,T2是第2次调查的总分。Q1是第1次调查,被访者对自己生存质量的总评分,满分是100分。
【sas 程序】
proc corr data=e24_4 alpha;
var f1-f24;
run;
*alpha 为计算cronbach的选项
【结果】
结果有两条:
Raw 0.804648
Standardized 0.796929
分别是用原始数据和标准化数据计算的cronbach系数
用proc stdize标准化后再进行系数计算
proc stdize data=e24_4 out=ddd;
var f1-f24;
run;
proc corr data=ddd alpha;
var f1-f24;
run;
结果为:
Raw 0.796929
Standardized 0.796929
fallwin
unread,
Dec 29, 2007, 8:25:56 PM
12/29/07
Reply to author
Sign in to reply to author
Forward
Sign in to forward
Delete
You do not have permission to delete messages in this group
Copy link
Report message
Show original message
Either email addresses are anonymous for this group or you need the view member email addresses permission to view the original message
to 统计软件学习
数据见共享文件中
例题来自:医学统计学(第二版)p537
Reply all
Reply to author
Forward
0 new messages