test.prop.ps {statpsych} | R Documentation |
Computes a continuity-corrected McNemar test for equality of proportions in a paired-samples design. This function requires the frequency counts from a 2 x 2 contingency table for two paired dichotomous measurements.
test.prop.ps(f00, f01, f10, f11)
f00 |
number participants with y = 0 and x = 0 |
f01 |
number participants with y = 0 and x = 1 |
f10 |
number participants with y = 1 and x = 0 |
f11 |
number participants with y = 1 and x = 1 |
Returns a 1-row matrix. The columns are:
Estimate - ML estimate of proportion difference
z - z test statistic
p - p-value
Snedecor GW, Cochran WG (1989). Statistical Methods, 8th edition. ISU University Pres, Ames, Iowa.
test.prop.ps(156, 96, 68, 80) # Should return: # Estimate z p # [1,] 0.07 2.108346 0.03500109