Table 1 Details for the participants in each phase of the study
Phase of study | Participants’ job and number male(m) + female(f) | Assessment measure or target | ||||
|---|---|---|---|---|---|---|
Pregnant Women | Health educationist | Midwives | Experts from a health promotion institute | |||
Item generation | Interviews | 6f | 4(1 m + 3f) | 4(f) | 4(1 m + 3f) | Identifying the factors influencing preventive behavior of pregnant women |
Group discussion | 0 | 3f | 3f | 3f | Finalizing the first draft of the research questionnaire | |
Assessment of face validity | Qualitative way | 15f | 7(2 m + 5f) |  |  | Resolving ambiguity in meaning, wording, grammatical errors, and allocation of the items |
Quantitative way | 15f | 0 | 0 | 0 | Calculating IS of the items | |
Assessment of content validity | Qualitative way | 0 | 7(2 m + 5f) | 7f | 3f | Calculating CVR of the items |
Quantitative way | 0 | 7(2 m + 5f) | 7f | 3f | Calculating CVI of the items | |
Assessment of construct validity | EVA | 225 f | 0 | 0 | 0 | Calculating KMO of the questionnaire; factor loadings |
CFA | 225 f | 0 | 0 | 0 | Calculating fit indices of the structural pen-3 model | |
Reliability assessment | 42 f | 0 | 0 | 0 | Calculating Cronbach’s α, ICC, SEM, CR of the questionnaire | |