Is a life coach worth it? What the research says

By Dan Remon · Evidence checked October 2026

You’ve set the same goal 3 times this year. You know what to do. The plan gets made, the week fills up and by the end of the month the plan has gone quiet.

That gap between knowing and doing is the job of a life coach. The work is structure: a clear target, a plan that fits your actual week, a check every week and a way to adjust when the plan breaks.

Life coaching has also been tested in randomised trials since the mid-2000s, so you don’t have to take a coach’s word for it.

What are the benefits of a life coach?

A life coach helps you set a clear goal, build a plan that fits your week, act on it and review it until the change holds. The benefits measured in research are better goal attainment, more hope and wellbeing, and stronger goal-directed self-regulation: setting goals and following through on them. A coach works on the present and the next few months. The value comes from structure and accountability you wouldn’t keep up alone, plus an outside view of the blind spots you can’t see from inside your own week.

The first changes show up in your calendar: a decision you’ve parked gets made, or training goes back in at a time that survives travel. Within one 28-day cycle you should be able to point to something specific that’s different. What a full quarter adds up to is in what changes in 12 weeks of coaching.

Does life coaching work?

Yes, with limits. These are the studies worth knowing.

• An early study (2003). Anthony Grant took 20 adults through a 10-week group life coaching program. With no control group it shows association only: taking part was linked with better goal attainment, mental health and quality of life.¹
• A randomised trial (2006). 56 adults were randomly allocated to 10 weeks of cognitive-behavioural, solution-focused life coaching or a waitlist. The coached group gained significantly in goal striving, wellbeing and hope, and some gains held 30 weeks later.²
• Professional versus peer coaching (2007). In a randomised study of 63 people over 10 weeks, people with professional coaches showed more goal commitment and progress than peer-coached participants or controls. The authors concluded that a supportive person may be necessary but isn’t enough on its own.³
• Executives (2009). In a randomised controlled study, 41 executives received 360-degree feedback, a half-day workshop and 4 coaching sessions over 10 weeks. Compared with controls, goal attainment, resilience and workplace wellbeing rose and depression and stress scores fell.⁴
• The meta-analyses. Pooling coaching studies in organisations, Theeboom and colleagues found positive effects on every outcome they measured, from g = 0.43 for coping to g = 0.74 for goal-directed self-regulation.⁵ A 2023 meta-analysis using only randomised controlled trials (37 studies, 2,528 people) put the overall effect at g = 0.59, in the moderate range.⁶

Now the limits. Most of these trials are small. The 2023 analysis found signs of publication bias, and larger effects when people rated themselves than when outcomes were observed. Coaching works on average, which tells you nothing about a specific coach. It does tell you what to look for.

I build 3 things from this into how I coach. Method matters: the trials tested structured, goal-focused coaching. Expertise matters: peer coaching didn’t match professional coaching. And how you feel about coaching is a weak measure, because self-ratings run high. So we measure behaviour, every day.

What a life coach changes, and what they don’t

A life coach works on what you do next: decisions, habits, how your week runs and the standards you hold yourself to. The trials above were run with non-clinical groups, people who were functioning well and wanted something to change.^1,2

That’s the line with therapy. A therapist is a qualified clinician who treats mental health conditions. A mentor shares advice from their own path. A coach builds the plan with you and holds you to it. If you’re dealing with depression, anxiety, grief or trauma, start with a doctor or psychologist. Coaching can sit alongside that care, never in place of it.

One finding from the 2003 study is worth keeping: self-reflection scores went down and insight scores went up.¹ More time thinking about yourself isn’t the aim. A clearer view of what to do next is.

Life coaching overlaps with performance and executive coaching. I’ve set out the differences in performance coaching: what it is and when you need it. If balance is the main issue, read how a life coach helps with work-life balance.

How I coach: the Stealth OS loop

The coaching in those trials was structured and goal-focused. I run the same idea as a loop with 4 modes, Audit, Install, Execute and Compound, at the core of the Stealth OS. Every change goes through it. Here it is on one goal: you want to train 3 times a week and you’ve restarted twice this year.

Audit: see what your week does now

Before anything changes, we look at what happens now. The 1% Scorecard gives a starting score across 6 pillars and shows which one is leaking most. The Stealth Tracker, a 60-second daily check-in, shows the pattern. Here it would show where training breaks: travel weeks, late meetings, the morning after a bad night.

Install: one lever for 28 days

Then we pick one change for the next 28 days, the Monthly Lever. Here it might be 2 sessions a week, booked before 8am, on days you’re in town. 3 sessions work best for most people, but the first job is a number that survives a bad week. That’s the minimum effective dose. Install 5 changes at once and the first hard week takes out all of them.

Execute: run the week

The Weekly Compass, 30 minutes before the week starts, books the sessions before meetings take the slots. The Calendar of Kings ranks them alongside the work that has to ship, so the first request that lands doesn’t bump them. The Friday Debrief, 15 minutes, records what happened, what broke the plan and the one thing that changes next week. A missed session becomes information for Friday, and the plan adjusts.

Compound: stack the next cycle

When the lever holds for 28 days, it becomes the default and the next cycle stacks on top: a third session, a sleep window or the decision you’ve been parking. That’s The 1% Compound: improve 1% a day for a year and you finish at 37.78 times where you started (1.01³⁶⁵). Slip 1% a day and you finish at 0.03 (0.99³⁶⁵). Each quarter, a quarterly intensive resets the targets.

How to choose a life coach

The research gives you a short checklist.

1. A credential from a recognised body. Professional coaches outperformed peer coaches in the 2007 trial, and the 2023 meta-analysis found larger effects with qualified coaches outside leadership programs. I’m ICF-certified.
2. Experience with people in your situation. A coach who works with founders and executives knows what a board week or a month of travel does to a plan. I’ve coached since 1998.
3. A method they can explain. Ask how a goal moves from the session into your calendar. You want a specific answer.
4. Measurement beyond how you feel. Self-rated outcomes tend to look better than observed ones, so ask what gets tracked every week.
5. A fit call first. One conversation should tell you whether you trust this person to say what you don’t want to hear.

How to start

Start with the data, then choose the level of support.

1. The 1% Scorecard. Free, 8 questions, 2 minutes. You get a score out of 100 and the one thing to install first.
2. Stealth Coaching. Private 1:1 coaching, online or in person in Bangkok. It starts with a Stealth Strategy Call so we both know it’s the right fit.

Pick one goal you’ve restarted this year. That’s where the audit starts.

Related reading: Lifestyle coaching: what a lifestyle coach does and what changes and 8 benefits of mastermind groups, and how to choose one.

FAQ

Sources

1. Grant, A. M. (2003). The impact of life coaching on goal attainment, metacognition and mental health. Social Behavior and Personality: An International Journal, 31(3), 253-264. doi.org/10.2224/sbp.2003.31.3.253
2. Green, L. S., Oades, L. G., & Grant, A. M. (2006). Cognitive-behavioral, solution-focused life coaching: Enhancing goal striving, well-being, and hope. The Journal of Positive Psychology, 1(3), 142-149. doi.org/10.1080/17439760600619849
3. Spence, G. B., & Grant, A. M. (2007). Professional and peer life coaching and the enhancement of goal striving and well-being: An exploratory study. The Journal of Positive Psychology, 2(3), 185-194. doi.org/10.1080/17439760701228896
4. Grant, A. M., Curtayne, L., & Burton, G. (2009). Executive coaching enhances goal attainment, resilience and workplace well-being: A randomised controlled study. The Journal of Positive Psychology, 4(5), 396-407. doi.org/10.1080/17439760902992456
5. Theeboom, T., Beersma, B., & van Vianen, A. E. M. (2014). Does coaching work? A meta-analysis on the effects of coaching on individual level outcomes in an organizational context. The Journal of Positive Psychology, 9(1), 1-18. doi.org/10.1080/17439760.2013.837499
6. de Haan, E., & Nilsson, V. O. (2023). What can we know about the effectiveness of coaching? A meta-analysis based only on randomized controlled trials. Academy of Management Learning & Education, 22(4), 641-661. doi.org/10.5465/amle.2022.0107

This article is general information, not medical advice.