Does processing speed exert an influence on the special relationship of fluid and general intelligence?

The paper investigates why the virtual correspondence of the ability component of fluid reasoning scores and general intelligence observed by Schweizer, Troche, and Rammsayer (2011) was not replicated by Lozano (2015). It is shown that the time limit of the scale used in the former study caused a speed effect that strengthened the relationship, whereas the scale used by Lozano (2015) that was considered as unspeeded did not cause such an effect. Modifying the statistical model to eliminate this effect resulted in similar estimates of the relationship between the ability component of fluid reasoning and general intelligence.