In a study driven by a primarily __experimental__ approach, the literature review is conducted prior to beginning the study and focuses on justifying the need for the study and the hypotheses to be tested.
Explanation:
An experimental approach is used when the researcher has a specific research question or hypothesis concerning a causal relationship between two variables. In such an experimental study, the researcher is able to manipulate the independent variable by randomly assigning conditions to the participants. Where there are no causal relationships, independent variables cannot be ethically manipulated, or conditions cannot be assigned to the participants, a non-experimental approach will be preferred.
