Critique the variables in ONE of the studies below: Provide step-by-step explanation of these research articles:

McCaa, R. (2017). Nurse perceptions of pain in pediatric traumatic brain injury: A pilot study. Pediatric Nursing, 43(2), 92-95.
OR

McKee, G., Codd, M., Dempsey, O., Gallagher, P., & Comiskey, C. (2017). Describing the implementation of an innovative intervention and evaluating its effectiveness in increasing research capacity of advanced clinical nurses: using the consolidated framework for implementation research. BMC Nursing, 161-13. doi:10.1186/s12912-017-0214-6
Create a PowerPoint to answer the following:

Are the independent or dependent variables or research variables or concepts identified?
Are the variables that are manipulated or measured in the study consistent with the variables identified in the purpose or the objectives, questions, or hypotheses?
Are the variables reflective of the concepts identified in the study framework?
Are the variables clearly defined conceptually and operationally? And, are they based on theory and previous research?
Is the conceptual definition of the variable consistent with the operational definition?
Were the essential demographic variables examined and summarized?
Were the extraneous variables identified and controlled as necessary in the study?
Are there uncontrolled extraneous variables that may have influenced the findings? Is the potential impact of these variables on the findings discussed?