| (i) Confounding areas listed in the review protocol | ||||
| Confounding area | Measured Variable (s) | Is there evidence that controlling for this variable was unnecessary?* | Is the confounding area measured validly and reliably by this variable (or these variables)? | OPTIONAL: Is adjusting for this variable (alone) expected to favour the experimental or the control group? |
| Yes / No / No information | Favour intervention / Favour control / No information | |||
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