Validating a measure of temperament
The Compact (STQ-77) version was adapted to three languages: English, Russian and Chinese.There is work in progress on the Polish, Urdu, Hindu, Serbian, French, Dari and Korean versions of the STQ-77.
The factor analysis of the data received on Russian, Australian, American, Canadian, Urdu-Canadian, Polish-Canadian and Chinese samples confirmed a separation between the factors related to these three aspects of behavior.
Administration of the Extended STQ in practice was rather time-consuming, so Rusalov and Trofimova agreed to develop shorter, more compact versions of the STQ, which would be more suitable for screening purposes in clinical, organizational, vocational and educational settings.
Items in all versions of the STQ are given in the form of a statement, with a response following the Likert scale format: "strongly disagree (1)," "disagree (2)," "agree (3)," "strongly agree (4)".
The STQ is based on the Eastern-European tradition of experiments investigating the types and properties of nervous systems.
Initially all versions of the STQ were validated on adult samples and were designed for the purposes of organizational, educational and clinical psychology.
Now there are Child versions of the Short and Compact STQ, for administration by observers and guardians of the child in question.
Similar to the Rusalov’s STQ-150, the STQ-77 differentiates between the traits regulating motor-physical, social-verbal and mental-probabilistic aspects of behaviour.
The STQ-77 is therefore partially based on the model of Rusalov’s STQ-150, but also on the work of Luria describing functionality of three neurophysiological systems: “sensory-informational block”, “programming block” and “energetic block” regulating human behaviour.
All models and all modern versions of the STQ have 12 temperament scales.
There are two versions of the Structure of Temperament Questionnaire based on Rusalov’s model: an Extended STQ (STQ-150) and a Short STQ (STQ-26), The Extended STQ is a 150-item self-report measure with 144 items assigned to 12 temperament scales (12 items each), 1 validity scale (6 items), and 6 indexes, which combine these scales.
Factor analysis yielded 11 factors from 68 of the original questionnaire items that together accounted for 57% of the common variance in questionnaire item scores.