Note: The risk of bias by domain corresponds to the highest risk of bias among outcomes by domain.
The overall risk of bias corresponds to the overall highest risk of bias assessed among outcomes.
Bias | Author's judgement | Support for judgement |
Randomization |
Some concerns |
Quote: "Randomization was done immediately upon arrival at the training center. Participants who were enrolled into this study were given a sealed envelope containing a unique number. This number was used in data recording throughout the study. The participants were randomly divided into two groups by rolling a dice. Those who rolled 1-3 were included in the group with an instructor (control group). Those who rolled 4-6 were included in the group to be trained by watching videos (study group)."
Allocation sequence random. Unclear allocation concealment (no information on sequentially-numbered, opaque envelopes). |
Deviations from intervention |
* |
This outcome-specific domain was not assessed; Pending contact with authors. No review-specific outcomes reported/extracted. |
Missing outcome data |
* |
This outcome-specific domain was not assessed; Pending contact with authors. No review-specific outcomes reported/extracted. |
Measurement of the outcome |
* |
This outcome-specific domain was not assessed; Pending contact with authors. No review-specific outcomes reported/extracted. |
Selection of the reported results |
* |
This outcome-specific domain was not assessed; Pending contact with authors. No review-specific outcomes reported/extracted. |
Overall risk of bias |
* |