| Analysis | Phase 1 | Phase 2 | Phase 3 | Phase 4 | Phase 5 | Phase 6 |
| Factor Structure of DASS-21: | Univariate & Multivariate Normality | Standard EFA Bifactor-EFA | ICM-CFA Bifactor-CFA ESEM (11 models tested) | Cross-validation of optimal model of Phase 3 | Measurement Invariance | Validity Reliability
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| Factor Structure of DASS-9: | Random Sample splitting to implement the “3-faced construct validation method | Standard EFA Bifactor-EFA | ICM-CFA Bifactor-CFA ESEM (6 models tested) | Cross-validation of optimal model of Phase 3 | Measurement Invariance | Validity Reliability |
| Applied in: | 4 samples (Total, EFA, CFA1, CFA2) | EFA SUB-SAMPLE (20%) | CFA1 SUB-SAMPLE (40%) | CFA2 SUB-SAMPLE (40%) | Total Sample | |