The Strelau temperament inventory (STI): Preliminary results in a West German sample

The Strelau Temperament Inventory (STI) was administered to a West German sample consisting of 108 men and 73 women. Distributions for the three scales [Strenght of Excitation (SE), Strenght of Inhibition (SI) and Mobility of Nervous Processes (M)] did not deviate from a normal distribution; men scored higher on the SE scale than women. Split-half reliabilities and coefficients of internal consistency were sufficiently high for SE (0.89 and 0.84) and SI (0.83 and 0.82), but not for M (0.76 and 0.68). E was found to be positively related to SE and M, N turned out to be negatively related to SE and SI. The P and L scales were highly correlated with SI. The results indicate that the SE and SI scales can be recommended in their present form for use in West Germany, whereas the M scale needs revision. The interrelations between STI and EPQ scales are in line with Eysenck's theoretical considerations.