Discussion question-Topic 3 DQ 2-What factors must be assessed when critically appraising quantitative studies (e.g., validity, reliability, and applicability)? Which is the most important? Why?
Discussion question-Topic 3 DQ 2-What factors must be assessed when critically appraising quantitative studies (e.g., validity, reliability, and applicability)? Which is the most important? Why?
Discussion question-Topic 3 DQ 2
What factors must be assessed when critically appraising quantitative studies (e.g., validity, reliability, and applicability)? Which is the most important? Why?
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Solution
What factors must be assessed when critically appraising quantitative studies (e.g., validity, reliability, and applicability)? Which is the most important? Why?
Nursing care needs to be established on sound research and this requires that nurses should critically examine the available quantitative research studies. Research validity, reliability, and applicability are some of the factors that must be considered during critical appraisal of quantitative research, (Bloomfield & Fisher, 2019).
The validity of research refers to the extent to which a concept was accurately measured. It consists of two domains the internal validity that is the degree to which the result observed represents the truth in the population being studied and not due to error in the methodology while external validity is the extent to which results of a study can be applied to the general populations. There exist three types of validity including construct validity which refers to the degree to which the measurement instrument used measures the intended theoretical construct, content validity refers to the extent to which aspects of the intended construct were accurately measured by the instrument used, while criterion validity is the degree to which used measurement is related to other instruments that measure similar variables, (Patino & Ferreira, 2018).
Reliability of the study refers to the consistency of a measure and the extent to which instruments used in a study can give similar results when applied in similar conditions. Reliability assesses the trustworthiness of the instruments used and results obtained in a study. The applicability of research refers to the extent to which the results obtained from research can be used to impact practice, (Curtis et al., 2017). All the three factors validity, applicability, and reliability are considered to be equally important when appraising quantitative research since they are positively correlated and are hard to separate when critically appraising a research study, therefore, challenging to determine the most important factor, (Bloomfield & Fisher, 2019).
References
Bloomfield, J., & Fisher, M. J. (2019). Quantitative research design. Journal of the Australasian Rehabilitation Nurses Association, 22(2), 27-30.
Link: https://link.springer.com/referenceworkentry/10.1007%2F978-981-10-5251-4_120
Curtis, K., Fry, M., Shaban, R. Z., & Considine, J. (2017). Translating research findings to clinical nursing practice. Journal of clinical nursing, 26(5-6), 862-872.
Link: https://onlinelibrary.wiley.com/doi/full/10.1111/jocn.13586
Patino, C. M., & Ferreira, J. C. (2018). Internal and external validity: can you apply research study results to your patients?. Jornal brasileiro de pneumologia, 44(3), 183-183.
Link: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6188693/
