Dear Johnny
For the benefit of others, I provide an excerpt below from Steve Simon's excellent reply to a similar message which you sent to a separate list:
"Since
the goal of most reliability studies is to produce some sort of
correlation, the sample size is adequate if the confidence limits around
that correlation are reasonably narrow.
"I elaborate a bit more about this at
www.childrensmercy.org/stats/weblog2007/ValidityReliabilitySampleSize.asp
"
For completeness, you may also find it helpful, however, to consult the following reference on statistical power calculations:
http://itchy.icw.com/ncss/PASSUG3.pdfRegards
Margaret
----- Original Message ----
From: John Amora <
[hidden email]>
To:
[hidden email]
Sent: Thursday, 6 March, 2008 3:22:39 AM
Subject: reliability analysis for small sample
Hello everyone,
I am conducting reliability analysis using cronbach's
alpha for an instrument with k items. My problem is
that sample size (n) is very small, that is, n is less
than k. I have no other ways to increase the size of
n. Your comments are highly solicited. Thank you.
Johnny
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