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This chapter describes the qualitative development of the Coaching Effectiveness Scale (CES) to address the lack of validated coaching outcome measures. Guided by Classical Test Theory, the study followed a structured process of construct definition, item generation, and refinement. Seven domains of coachee outcomes informed a 39-item pool, which was evaluated through expert review and 6 focus groups (33 participants). Thematic analysis confirmed the framework and refined the instrument into a 24-item scale, subsequently tested in a pilot for usability and clarity. The CES offers a theoretically grounded and practically applicable tool, providing researchers and organisations with a structured framework to evaluate coaching effectiveness.

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Qualitative Examination of the Focus Group Sessions

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  • 发表日期：

    2026年

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  • Judit Orban

摘要

This chapter describes the qualitative development of the Coaching Effectiveness Scale (CES) to address the lack of validated coaching outcome measures. Guided by Classical Test Theory, the study followed a structured process of construct definition, item generation, and refinement. Seven domains of coachee outcomes informed a 39-item pool, which was evaluated through expert review and 6 focus groups (33 participants). Thematic analysis confirmed the framework and refined the instrument into a 24-item scale, subsequently tested in a pilot for usability and clarity. The CES offers a theoretically grounded and practically applicable tool, providing researchers and organisations with a structured framework to evaluate coaching effectiveness.