Validation and Adaptation of the Interpersonal Behaviors Questionnaire in the Spanish Sport Context: The Inclusion of Novelty and Analysis of Coach–Athlete Perspectives

Key Points

• To validate and adapt the Interpersonal Behaviors Questionnaire (IBQ) for the Spanish sports context, focusing on coach-athlete interactions.
• Adaptation of the existing Interpersonal Behaviors Questionnaire (IBQ) to include novelty.
• Conducted reliability testing for the adapted IBQ.
• Analyzed the alignment between athletes' perceptions of coaches and coaches' self-perceptions.
• The adapted IBQ displays high reliability among Spanish athletes and coaches.
• Athletes and coaches' perceptions show strong synchronization.
• The adapted questionnaire effectively predicts physical activity intentions.