Barely Significant

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To estimate the number of participants we would need to detect cognitive changes with at least large effect sizes we used GPower [ 129 ] considering a priori analysis with covariates (ANCOVAs as it does not compute information for GLM), two groups (smokers and non-smokers) and two continuous predictors (SES and one other, on average, which we believed might be significant even though we selected smokers and non-smokers to be as alike as possible).
Results were unchanged controlling for observable confounds, with the exception of two models (LTM status predicting comfortable and agreeableness) in which LTM status became a marginally significant predictor ( p s = .085, .089, respectively) when confounds were statistically controlled.
In a study of young healthy couples, mean energy expenditure during sexual activity was 3.6kCal/minute and the mean intensity was 5.8 METS; leading the authors to conclude that sexual activity could be considered significant exercise.[ 8 ] A growing literature has documented associations between engaging in sexual activity and better health and wellbeing.