Research design
Core concepts used to design, compare and interpret research studies.
The plan showing how an experiment will be carried out and compared.
anchor · The overall structure of an experiment.control groupThe group used as a baseline against which another group is compared.
core · Provides a comparison baseline.randomisationUsing a random method to reduce systematic differences between groups.
core · Uses chance to assign conditions.SampleExample; pattern.
core · The cases selected for study.VariableHaving the capacity of varying or changing; capable of alternation in any manner; changeable; as, variable winds or seasons; a variable quantity.
core · A characteristic that can vary.BiasA weight on the side of the ball used in the game of bowls, or a tendency imparted to the ball, which turns it from a straight line.
core · A systematic source of distortion.ValidityThe quality or state of being valid; strength; force; especially, power to convince; justness; soundness; as, the validity of an argument or pro…
core · How well the study measures what it claims.reproducibilityWhether another researcher can repeat the analysis and obtain the same result.
core · Whether methods and results can be repeated.