Research Article

Reliabilities of Mental Rotation Tasks: Limits to the Assessment of Individual Differences

Table 1

Split-half reliabilities.

InterceptsSlopes
Correlation ReliabilityCorrelation Reliability

Blocked.65<.001.79.54<.001.79
Hand.5<.001.67.14.35.24
Leg.44<.001.61−.02.18
Face.43<.001.60.02.91.03
Car.4<.001.57.23.11.38
Mixed.7<.001.82.11.46.2
Hand.44<.001.61−.06.71
Leg.3.04.47.13.38.23
Face.51<.001.67−.08.60
Car.21.16.34.19.2.32

Note: reliability for full test adjusted according to Spearman-Brown formula. The formula is not applicable to negative correlations.