# [R] Correlations Table of Items when compute Cronbach's Alpha

Steven Stoline sstoline at gmail.com
Tue Feb 21 16:43:00 CET 2017

```Dear All:

I am using *alpha(data, **check.keys=TRUE)  or  alpha(data, keys = c(1, 1,
1, -1))*  to compute the Cronbach's Alpha. I am using  *check.keys=TRUE*
or *keys = c(1, 1, 1, -1) *to automatically reverse items.

*My question is: *how can I get the correlation tables (matrix) of the
reversed items as part of the R output.

*Here is an example of the data set:*

X1 X2 X3 X4
2  5   4   4
1  1   1   6
1  2   1   6
2  3   2   4
1  2   1   6
1  3   1   6
2  2   2   5
2  1   1   6
2  2   4   5
5  5   2   1
1  3   1   6
1  1   1   6
1  1   1   6
2  2   2   5
2  2   2   2
1  6   1   6
1  2   1   6
2  2   3   5
2  5   4   5
2  1   2   6
2  2   1   5
2  2   2   6
1  1   1   6
1  1   1   6
1  1   1   5
1  2   2   5
2  2   2   5
1  2   2   5
1  4   2   5
2  2   2   2
2  2   4   5
2  1   2   5
2  2   2   5
2  2   2   5
2  2   2   5
2  2   2   5
5  2   2   5
2  2   1   5
2  5   6   2
2  4   2   5
2  2   2   4
2  3   5   1
3  3   3   6
2  2   2   4
2  2   2   5
2  2   2   5
1  1   1   6
1  1   1   5
6  1   1   6
1  1   1   6
2  6   4   3
1  1   1   6
1  1   1   6
4  5   5   5
5  2   2   5
2  2   2   5
1  2   1   6
1  5   1   6
1  4   2   5
2  1   1   5
4  2   1   5
2  2   2   5
1  1   1   6
6  1   1   4
1  2   1   6
1  1   1   5
1  1   1   6
1  4   1   3
1  1   1   6
5  2   2   5
2  2   2   5
1  1   1   6
1  1   1   5
4  4   2   4
3  2   2   5
1  2   1   6
1  2   1   6
2  1   1   5
2  6   1   6
4  3   1   5
1  1   1   5
1  1   1   6
4  5   4   5
1  1   1   2
1  1   1   6
1  1   1   6
4  4   3   4
2  2   2   4
1  2   2   4
1  1   1   6
2  3   2   5
2  6  NA   5
2  2   2   5
1  2   3   4
2  1   2   5
1  2   2   6
1  1   2   6
1  2   2   5
2  2   2   5
1  5   5   2
1  2   1   5
1  5   2   4
2  4   1   6
6  1   1   2
2  2   2   5
1  1   1   6
1  1   1   2
2  2   2   4
1  1   1   6
4  2   2   5
2  3   1   5
2  1   2   5
2  2   1   5
1  2   2   5
1  2   1   5
6  2   2   4
2  2   5   2
2  5   3   5
1  4   4   4
1  1   1   6

thank you
steve

------------------------
Steven M. Stoline
sstoline at gmail.com

[[alternative HTML version deleted]]

```