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Table 7 Joanna Briggs Institute’s critical appraisal checklist of quasi-experimental studies for study quality assessment. [26]

From: Peer counselling as an approach to improve complementary feeding practices: a narrative review

Selected quasi experimental studies strengths and limitations (n = 3)

Studies

Is it clear in the study what is the cause’ and what is the ‘effect’ (i.e., there is no confusion about which variable comes first)?

Were the participants included in any comparisons similar?

Were the participants included in any comparisons receiving similar treatment/care, other than the exposure or intervention of interest?

Was there a control group?

Were there multiple measurements of the outcome both pre- and post-intervention/exposure?

Was follow up complete and if not, were differences between groups in terms of their follow up adequately described and analysed?

Were the outcomes of participants included in any comparisons measured in the same way?

Were outcomes measured in a reliable way?

Was appropriate statistical analysis used?

Kushwaha KP et al. 2014 [29]

Yes

Yes

Yes

No

Yes

Yes

Yes

Yes

Yes

Singh et al. 2018 [31]

Yes

No

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Abdullahi et al. 2019 [32]

Yes

No

No

Yes

Yes

Yes

Yes

Yes

Yes