Represents the expected number of correct guesses of randomization sequences.
character string, should be one of
Selection bias can be an issue in the design of a clinical trial. The
expected number of correct guesses is one measure for selection bias.
corGuess function is a constructor function
for an S4 object of the class
corGuess representing the issue of
correct guesses in a clinical trial. The parameter
type takes the
refers to "convergence strategy", i.e. the investigator predicts the treatment which has hitherto occured less often.
refers to "divergence strategy", i.e. the investigator predicts the treatment which has hitherto occured more often.
S4 object of class
corGuess, a formal representation of the
issue of correct guesses in a clinical trial.
D. Blackwell and J.L. Hodges Jr. (1957) Design for the control of selection bias. Annals of Mathematical Statistics, 25, 449-60.