The science of success: a deep dive into executive coaching effectiveness

Executive coaching has evolved from a targeted intervention for challenging leadership behaviours into a core strategy for organisational development and cultivating high-potential talent. As the field has grown into a multibillion-dollar global industry, there has been an increasing demand for robust scientific evidence to support its effectiveness.

Systematic meta-analyses and randomised control trials (RCTs) now confirm that coaching is not just a privilege for senior leaders, but a validated method for driving measurable change. The research demonstrates that coaching translates abstract learning into tangible improvements in performance, with outcomes varying according to whether the focus is on specific behaviours, internal attitudes, or goal ambition.

1. The hierarchy of impact: behavioural vs. attitudinal change

Coaching proves effective across multiple domains, but research highlights a distinct 'hierarchy of impact'. Meta-analytic evidence shows coaching has a more substantial effect on behavioural outcomes than on attitudinal or personal characteristic changes.

Cognitive activities: The greatest impact is seen in 'behavioural cognitive activities' such as strategising, planning, and adopting new behaviours. This suggests coaching is especially beneficial for managers in complex roles requiring advanced decision-making and project management.

Skill acquisition: Coaching supports the development of new skills and their automatic application, with significant effect sizes for performance behaviours.

Attitudinal lag: While coaching does enhance attitudes like job satisfaction and commitment, these effects are moderate and tend to develop over time. Unlike behaviours, which can shift quickly, entrenched attitudes need lengthier coaching programmes to change, likely due to protective cognitive processes.

2. Elevating ambition: the 'goal level' phenomenon

Recent research distinguishes between achieving goals and raising ambitions. Coaching not only helps clients reach their goals, but a 2025 RCT by Nicolau et al. shows it also increases clients' 'personal goal level' — their intended work rate and ambition — over time compared to controls.

Mechanism of action: Coaching equips individuals to handle 'subjective goal difficulty' and builds the self-efficacy needed to set higher targets. This means organisations gain not only completed tasks but also a workforce that continually raises its own standards.

The self-efficacy nuance: The study found baseline self-efficacy did not influence success; coaching was effective regardless of initial confidence. However, low self-efficacy predicted withdrawal from coaching, suggesting less-confident leaders benefit equally but are more likely to opt out or leave early.

3. The 'beta change' effect and objective ratings

Coaching literature reveals a paradox between self-assessment and observer ratings. Psychologically informed coaching approaches show a positive effect on objective work performance as rated by others, such as 360-degree feedback.

Recalibration: Coachees often report lower improvements than their supervisors, attributed to 'beta change' — coaching increases self-awareness, leading leaders to judge themselves more critically after intervention.

Observable growth: Although executives may feel challenged or self-critical, supervisors and peers observe clear improvements in leadership behaviours. External ratings are therefore a more reliable indicator of organisational return on investment than self-reports.

4. Crisis management and organisational resilience

Beyond individual performance, coaching provides stability during organisational turbulence. Studies from the COVID-19 pandemic and other crises show coaching acts as a buffer, helping to prevent declines in well-being and engagement that usually accompany instability.

Strategic resilience: Coaching enhances psychological capital (PsyCap) and resilience, enabling leaders to manage stress and maintain decision-making under pressure.

Directive support: In periods of high turbulence, coaching relationships often become more directive, supporting executives through 'career shocks' and helping them develop crisis management skills.

5. Determinants of success: methods and modalities

To optimise effectiveness, organisations need to consider how coaching is delivered.

Integrative approaches: Coaching is most effective when combining multiple psychological approaches — such as the goal orientation of Solution-Focused Coaching (SFC) and the internal regulation of Cognitive Behavioural Coaching (CBC) — yielding stronger outcomes than single methods.

Irrelevance of modality: Recent meta-analyses show no significant difference between face-to-face and virtual (e-coaching) sessions, supporting the use of scalable, cost-effective virtual programmes, which became crucial during the pandemic.

Dose-response: The number of coaching sessions does not directly correlate with effectiveness, supporting the 'coregulation phenomenon' — coachees adapt session frequency to the complexity of their goals, favouring flexible contracts over rigid schedules.

Conclusion

The substantial evidence base for executive coaching confirms its value as a powerful tool for behavioural change, elevating ambition, and enhancing organisational resilience. However, success depends on strategic use of integrative coaching methods, objective performance metrics, and understanding that behavioural changes may be quick, while attitudinal shifts require time. Coaching is particularly crucial during periods of crisis, acting as a buffer against burnout and disengagement. By focusing on these evidence-based factors, organisations can shift from viewing coaching as a remedial cost to leveraging it as a strategic asset for sustainable performance.

References

Athanasopoulou, A., & Dopson, S. (2018). A systematic review of executive coaching outcomes: Is it the journey or the destination that matters the most? The Leadership Quarterly, 29(1), 70–88.

Cannon-Bowers, J. A., Bowers, C. A., Carlson, C. E., Doherty, S. L., Evans, J., & Hall, J. (2023). Workplace coaching: A meta-analysis and recommendations for advancing the science of coaching. Frontiers in Psychology, 14, 1204166.

Nicolau, A. G., Constantin, T., van Gool, P. J. R., & Kleingeld, A. (2025). Can I improve my personal goal level through executive coaching over time? A randomised control trial study. Coaching: An International Journal of Theory, Research and Practice, 18(1), 62–78.

Nicolau, A., Candel, O. S., Constantin, T., & Kleingeld, A. (2023). The effects of executive coaching on behaviors, attitudes, and personal characteristics: A meta-analysis of randomized control trial studies. Frontiers in Psychology, 14, 1089797.

Plotkina, L., & Ramalu, S. S. (2024). Determinants and trends of executive coaching effectiveness in post-pandemic era: A critical systematic literature review analysis. Management Review Quarterly. https://doi.org/10.1007/s11301-024-00428-x

Wang, Q., Lai, Y.-L., Xu, X., & McDowall, A. (2022). The effectiveness of workplace coaching: A meta-analysis of contemporary psychologically informed coaching approaches. Journal of Work-Applied Management, 14(1), 77–101.