This may be a very simple fix, but I am struggling to reproduce Becker's (1988)
imputation of control group effect sizes for single group trials. For some
reason that I cannot figure out, I am getting an "All list elements in 'V' must
be square matrices". Below is my V matrix, which I believe is square:
Study1
Study2
Study3
Study4
Study5
Study6
Study7
Study8
0.118
0
0
0
0
0.010465
0.010465
0.010465
0
0.121
0
0
0
0.010465
0.010465
0.010465
0
0
0.404
0
0
0.010465
0.010465
0.010465
0
0
0
0.146
0
0.010465
0.010465
0.010465
0
0
0
0
0.09
0.010465
0.010465
0.010465
0.010465
0.010465
0.010465
0.010465
0.010465
0.104465
0.010465
0.010465
0.010465
0.010465
0.010465
0.010465
0.010465
0.010465
0.085465
0.010465
0.010465
0.010465
0.010465
0.010465
0.010465
0.010465
0.010465
0.069465
I get the error running as a multivariate rma. If I run as a simple rma, I get
a non-positive sampling variances error message (but the correlations are all
at least between 0 and 1).
Any help is greatly appreciated.
Hugh
Hugh F. Crean, Ph.D.
Assistant Professor of Clinical Nursing
2W.156 Helen Wood Hall
School of Nursing
University of Rochester
601 Elmwood Avenue
Rochester, New York 14620
(585) 276-5575
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