Exact(2)
To control for self selection we carried out a randomised controlled experiment in which articles from a journal publisher's websites were assigned to open access status or subscription access only.
So, in collaboration with researchers, it decided to run a randomised controlled experiment.
Similar(58)
Each study was classified as a randomised controlled trial (RCT), quasi-experiment (QE) or observational (Obs).
A randomised controlled trial.
Electronic cigarettes for smoking cessation: a randomised controlled trial.
A protocol summary of a randomised controlled trial.
The design was a randomised controlled trial.
A randomised controlled trial was conducted.
Thomas, M. et al. Breathing exercises for asthma: a randomised controlled trial.
Mitchell, K. E. et al. A self-management programme for COPD: a randomised controlled trial.
A randomised controlled trial study design was used.
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