Dealing with a high Cronbach alpha

Posted by Promises on Apr 28, 2015; 6:03pm
URL: http://spssx-discussion.165.s1.nabble.com/Dealing-with-a-high-Cronbach-alpha-tp5729405.html

Hello,
I'm wondering if anyone can provide some guidance here.

I am creating measure with 10 items (variables). When I run internal consistency analysis., it produces a cronbach's alpha score of .91 in internal consistency analysis. When I exclude a particular item, the alpha score decreases to .89. My questions are:
1. Is a high alpha score (in this case .91) a problem (and I ask in the context of a psychological measure)?
2. Is it advisable to drop an item on the basis of 'cronbach's alpha if item deleted'?

I welcome any input with thanks.