Type of Study
Define whether the study will be experimental or observational. Whenever possible experimental studies are preferred because we may be more confident in their conclusions. In experimental studies an intervention, program, or treatment is purposefully applied to the experimental units or subjects and the effects are observed. For example an investigator may wish to study the effectiveness of a new method for teaching reading. Reading teachers may be randomly assigned to use the new method or the traditional approach, and after a period of time their students are tested for reading comprehension and improvement from baseline scores.
State whether the study is a randomized controlled trial (RCT), where assignment of the ...