Research is reviewed to show that the weakness of the reaction time slope parameter (b) of the Hick function x IQ correlation is mainly attributable to statistical artifacts that suppress the parameter's correlation with any other variables, such as the intercept and IQ. Conditions that reduce this suppression are reviewed. (SLD)

A sample of the literature on test speededness is reviewed; methods of assessing speededness are presented and criticized; the assumptions that underlie these methods are questioned, and alternate, multiple-administration methods are suggested. The importance of the effect of time limits is discussed. (Author/CTM)