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Standardization

The initial standardization of the FTT was accomplished in Greece (in the wider Athens area) in 1989-1990 on a sample of children (760 “non-clinical” cases) aged 7-12 years and was re-standardized in 2001-2003. Re-standardization (873 “non-clinical” cases) was conducted in order to include an additional younger age group aged 6-7 years and further examine the psychometric properties of the test. This resulted in the revised manual of the test which included additional variables (Sense of Privacy, Instrumental Aggression and Need for Approval) in total 30.

For further information regarding standardization please refer to the respective chapter of the manual.