Examination of Student-Teacher Interpersonal Relationships Circumplex Model in the Greek Educational Context.

Student-teacher interpersonal relationships contribute significantly to the academic trajectory and achievement of children and adolescents. The Questionnaire on Teacher Interaction (QTI) is one of the most widely applied measures for assessing students' perceptions about the teachers' interpersonal behaviour. QTI comprises eight subscales that are assumed to follow a circumplex model. Prior studies on QTI's psychometric properties are inconclusive and report mixed findings. The purpose of this study was to examine the applicability of QTI in the Greek cultural context, by testing its circumplex structure and levels of reliability. QTI was administered to 1669 secondary education students, from 85 different classrooms. A cross-validation approach and a variety of statistical techniques were employed. Subscales' internal consistency and their ability to discriminate among classes were satisfactory. Exploratory statistical techniques provided initial support of the circular pattern. Application of a specifically designed package for testing the circumplex structure of an instrument, showed that a model in which the eight QTI subscales are placed on the circumference of a circle with equal distances form the centre was tenable. However, the assumption of equal distances was not confirmed. Deviation from the theoretical position of the subscales was mainly due to students' difficulty to discriminate teachers' proximity behaviour, a finding reported in various studies and across different cultural contexts. Suggestions for improving the psychometric properties of the QTI are discussed.