Research has been done regarding specification of study parameter settings to maximize power [ 10, 16, 17].
Two reviewers (MA/TQ) extracted data regarding: context of study, recruitment, description of participants, study design, results and conclusions.
As regarding results of study, the major conclusions are: RNs have generally positive perceptions on online learning.
In that regard, dozens of studies have shown strong correlations between sponsored research and favorable outcomes for the sponsors.
Therefore, regarding lack of studies in these issues, further studies are recommended for evident explanation.
The apparent 'instability' of knowledge structure over time raises concerns regarding validity of studying knowledge structure.
We provide guidelines regarding design of studies targeted at monitoring for population declines.
Where uncertainties regarding eligibility of studies occurred, all reviewers participated in the decision about inclusion.
Discrepancy regarding selection of studies was resolved by discussion with the senior author (XZ).
Regarding inclusion of studies and interpretation of data, a third investigator (YYO) was consulted to resolve discrepancies.
