Question: reply to this post: Quantitative research, by contrast, emphasizes objective measurement and numerical analysis of variables. It uses structured methods such as surveys, experiments, or
reply to this post: Quantitative research, by contrast, emphasizes objective measurement and numerical analysis of variables. It uses structured methods such as surveys, experiments, or secondary data analysis to test hypotheses or measure relationships among variables. Designs include descriptive, correlational, quasi-experimental, and experimental studies. The strength of quantitative research lies in its ability to produce generalizable findings through statistical testing and large sample sizes (Polit & Beck, 2021). For example, a randomized controlled trial (RCT) assessing the effectiveness of a new antidepressant provides high levels of evidence because it minimizes bias through randomization and control of variables. The use of standardized instruments ensures reliability and validity. However, quantitative designs may overlook the personal or contextual factors behind statistical outcomes. They answer what and how much but not necessarily why. Moreover, ethical concerns such as random assignment or withholding treatment can limit feasibility in some clinical settings. When critically appraising quantitative research, key factors include the clarity of the hypothesis, sampling methods, validity and reliability of measurement tools, and appropriateness of statistical analysis. Internal validity ensures that results accurately reflect the relationship between variables, while external validity determines how well findings apply to other populations. A robust quantitative
Step by Step Solution
There are 3 Steps involved in it
Get step-by-step solutions from verified subject matter experts
