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. 2023 Feb 14;20(4):3341. doi: 10.3390/ijerph20043341
# Assumption Step Result Decision
1 Normality of the data associated with the dependent variable We computed the Mahalanobis values through the HLR in which PA enjoyment was the dependent variable The significance values associated with the Mahalanobis values met the condition p < 0.001; thus, normality was confirmed. Each variable also produced a skewness and kurtosis value not greater than 2 in absolute terms [26,28] We confirmed normality of the data for HLR analysis
2 Linearity We plotted standardised residuals against standardised predicted values of the dependent variable in the above HLR analysis. We observed the linearity of the lines of best fit The graph shows a straight line as recommended [28] Assumption or condition met for HLR analysis
3 Independence of errors Durbin–Watson statistics were generated for all the HLR models fitted Durbin–Watson statistic was approximately 2 as recommended [26] The assumption was met for HLR analysis
4 Multi-collinearity Tolerance values were computed through the above HLR analysis The tolerance values are >0.2 as recommended [28] The assumption was met for HLR analyses
5 Homogeneity of variances We plotted standardised residuals against standardised predicted values of the dependent variable in all HLR models The graphs produced a satisfactory pattern as recommended [28] The assumption was met for HLR analyses
Note: HLR—hierarchical linear regression; PA—physical activity.