At follow-up, the group × time interaction failed to reach significance ( F 1,227.63 =3.54; P =.06).
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Effectiveness of an App-Based Short Intervention to Improve Sleep: Randomized Controlled Trial.
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0.0600
The sentences
In the full sample, the intervention was associated with a statistically significant improvement of insomnia symptoms at postintervention that was maintained at follow-up, although the latter just failed to reach statistical significance.