1. Objectifs

Intentions :
«[T]he purpose of the current study is to investigate the role of sleep quality in the association between daily stress and negative mood among individuals facing chronic parenting stress.» (p. 1)

Questions/Hypothèses :
«[I]t was hypothesized that sleep disturbances would exacerbate (i.e., moderate) the relation between child behavioral problems and negative mood. Specifically, we predicted that on a between-subject level, parents who on average experienced the most child behavioural problems and most sleep disturbances would report the most negative mood.» (p. 6)

2. Méthode

Échantillon/Matériau :
«Sixty-six participants were recruited via posters and meetings at schools and community groups for families of children with special needs in the Greater Montreal Area. Participants were the biological or legal parents cohabiting with a child with an ASD [autism spectrum disorder] diagnosis. […] Participants also completed daily diaries for six consecutive days at approximately the same time each day.» (p. 7)

Instruments :
Questionnaire

Type de traitement des données :
Analyse statistique

3. Résumé

«[T]he results from the current investigation indicate that sleep quality explains a significant amount of the variability (i.e., up to 79.6%) that exists between average child behavioural problems and negative mood. Specifically, the fixed effects of within-person differences in parent sleep satisfaction and between-person differences in parent sleep efficiency helped explain the association between average child behavioural problems and parent daily negative mood (i.e., the random effect). Analysis of the fixed effects also showed that these differences in sleep quality moderated the relation between average child behavioural problems and negative mood. For instance, parents who on average reported more child behavioural problems than other parents, experienced greater negative mood following nights when they were more dissatisfied with their sleep than usual. Further, parents who on average reported more child behavioural problems and on average poorer sleep efficiency than other parents, experienced more negative mood across the daily diary period as compared to parents who reported less parenting stress and better sleep efficiency. Moreover, results from the cross-sectional mediation analyses indicated that sleep satisfaction, but not sleep efficiency, fully mediates the relationship between child behavioural problems and self-reported parental depressive symptoms, highlighting the importance of subjective sleep quality.» (p. 15)