ci.agree2 {statpsych} | R Documentation |
Computes adjusted Wald confidence intervals for the G-index of agreement within each group and the difference of G-indices. The point estimates are maximum likelihood estimates.
ci.agree2(alpha, n1, f1, n2, f2, r)
alpha |
alpha level for simultaneous 1-alpha confidence |
n1 |
sample size (objects) in group 1 |
f1 |
number of objects rated in agreement in group 1 |
n2 |
sample size (objects) in group 2 |
f2 |
number of objects rated in agreement in group 2 |
r |
number of rating categories |
Returns a 3-row matrix. The rows are:
Row 1: G-index for group 1
Row 2: G-index for group 2
Row 3: G-index difference
The columns are:
Estimate - estimate of G-index (single-group and difference)
LL - lower limit of confidence interval
UL - upper limit of confidence interval
ci.agree2(.05, 75, 70, 60, 45, 2) # Should return: # Estimate LL UL # G1 0.8666667 0.6974555 0.9481141 # G2 0.5000000 0.2523379 0.6851621 # G1 - G2 0.3666667 0.1117076 0.6088621