2.4 Data analysis
Data was analysed using SPSS version 28. The relationship between IPQ-R
subscales, AD severity, caregiver SE and QoL were examined using
Spearman Rho (where data did not meet assumptions for parametric tests)
and Pearson correlations. Multiple regression models explored predictors
of caregiver QoL. All tests were two-tailed and alpha was set at 0.05.
Mediation analysis using the PROCESS macro was conducted to see if SE
mediated between IPQ-R domains and QoL scores. The direct and indirect
effect and the 95% CI were estimated based on 5000 bootstrapped
samples.