Description Usage Arguments Details Value References See Also

Represents the expected number of correct guesses of randomization sequences.

1 |

`type` |
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.
The `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
following values:

`"CS"`

refers to "convergence strategy", i.e. the investigator predicts the treatment which has hitherto occured less often.

`"DS"`

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.

Other issues: `chronBias`

,
`combineBias`

, `imbal`

,
`issue`

, `selBias`

,
`setPower`

Embedding an R snippet on your website

Add the following code to your website.

For more information on customizing the embed code, read Embedding Snippets.