Happy Days: Positive Psychology interventions effects on affect in an N-of-1 trial.

Int J Clin Health Psychol · 2016 · PMC6225023 · PMID 30487847

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marginally significantno p-value reported

Hierarchical linear modelling showed significant changes in PANAS scores, but no statistically significant differential impact on positive affect of the PPIs, apart from a marginally significant time × intervention interaction for ‘Using Signature Strengths in a New Way’.

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