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RELIABILITY gives two different values for Cronbach's Alpha

Troubleshooting


Problem

I've just run Reliability twice with the same data and I got two different values for Cronbach's Alpha. All I did differently was to ask for /SUMMARY=ALL with one. What's happening?

[{"Product":{"code":"SSLVMB","label":"IBM SPSS Statistics"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Component":"Not Applicable","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"Not Applicable","Edition":"","Line of Business":{"code":"LOB76","label":"Data Platform"}}]

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Historical Number

12717

Document Information

Modified date:
16 April 2020

UID

swg21476024