crawford.test.freq: Crawford-Howell (1998) frequentist t-test for single-case analysis.
Description
Neuropsychologists often need to compare a single case to a small control group. However, the standard two-sample t-test does not work because the case is only one observation. Crawford and Garthwaite (2012) demonstrate that the Crawford-Howell (1998) t-test is a better approach (in terms of controlling Type I error rate) than other commonly-used alternatives.
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Usage
crawford.test.freq(patient, controls)
Arguments
patient
Single value (patient's score).
controls
Vector of values (control's scores).
Value
Returns a data frame containing the t-value, degrees of freedom, and p-value. If significant, the patient is different from the control group.