# Croct says variant A won, how do I use Clarity to understand why?

Asked by Camille Dubois on 2026-10-20. Tags: clarity, session-replay, experiments.

I have a clear Bayesian winner in Croct, variant A. Before we roll it out, my
team wants to understand the behaviour behind the result rather than just
trust the number.

We use Clarity for replays and heatmaps. How do people combine the
quantitative result with the qualitative view so the two actually inform each
other?

## 2 answers

### Accepted answer from Juliana Amorim (2026-10-21)

The pattern you are describing is exactly the one we designed the Clarity
integration around: quantitative to know which variant won, qualitative to
understand the behaviour behind it.

On the quantitative side, Croct gives you the Bayesian, unsampled result,
and it recommends a winner once the probability to be best is above 95
percent. That is your decision signal. How that number is derived is
explained in [reading Bayesian experiment metrics](/answers/bayesian-metrics-probability-to-be-best),
and the mechanics are in the [experiment analytics reference](https://docs.croct.com/reference/analytics/experiment).

On the qualitative side, because each Clarity session carries the variant,
experiment, and audience it belonged to, you filter Clarity down to the
winning variant and watch how those visitors actually moved through the
page. The recommended flow is to let Croct tell you A won, then open the
variant A recordings and heatmaps in Clarity to see what about A worked. The
connection that makes this possible is on the
[Clarity integration page](https://docs.croct.com/immersion/integrations/analytics/clarity).

#### Reply from Petra Kovacs (2026-10-22)

This is our exact workflow now. We wait for Croct to call the winner,
then spend maybe an hour in Clarity on the winning variant to write up
the why for the rollout doc. Quant first so we do not go fishing in the
replays for a story that is not there.

### Answer from Elliot Marsh (2026-10-23)

Echoing the quant-then-qual order, with one caution. Use Clarity to
understand the winning variant, not to re-litigate the result by slicing
replays into ever-smaller segments until you find a story. The number is the
number. The thread on
[the trap of post-hoc segment drilldowns](/answers/post-hoc-segment-drilldown-caution)
is worth keeping in mind before you start segmenting the replays too finely.