Adaptation, psychometric properties and factor structure of the Lithuanian interpersonal behaviours questionnaire (IBQ) in sport

Research on interpersonal behaviour is becoming increasingly important in a variety of social contexts and cultures. In educational practice, its importance is based on interactions as the educational context, in which learning, value formation and meaningful activities take place. The aim of this was to adapt the Interpersonal Behaviours Questionnaire (IBQ) in Sport into Lithuanian and to analyse its reliability and validity. 241 physically active men (mean age 27.01 +/- 7.67) participated in this study. The adapted questionnaire showed good reliability (Cronbach alpha 0.927), content, criterion and structural validity (CFI 0.928, TLI 0.917, RMSEA 0.070, chi(2)/df 2.21) of Lithuanian version of IBQ in sport. The structural validity of the scale showed that supportive behaviours are strongly related to autonomy, competence and relatedness needs (rs ranged from .843 to .877), while supportive and thwarting behaviours have a moderate inverse relationship. However, supportive and thwarting behaviours are not diametrically opposed (r = -.597). Thus, the study shows that the IBQ in sport is valuable for analysing interpersonal relationships explaining the links between supportive and thwarting behaviour. The IBQ in sport can be a valuable tool for advancing research, enriching and improving educational practice in this field.

Automated summary

Research on interpersonal behaviour is of increasing importance in various social contexts and cultures. The aim of this study was to adapt and analyze the reliability and validity of the Interpersonal Behaviours Questionnaire (IBQ) in Lithuanian sport context. The adapted questionnaire demonstrated good reliability and validity, indicating its valuable role in analyzing interpersonal relationships and explaining the links between supportive and thwarting behavior. This study highlights the importance of the IBQ in advancing research and improving educational practice in the field of sport.