Nr505 Week 3: Elements of Quantitative Research: Design and Sampling
The focus of the Nr505 Week 3: Elements discussion is on two important elements of quantitative research studies- design and sampling. The approach or design, quantitative or qualitative, also applies to EBP projects. Both quantitative and qualitative have different designs or traditions that fall under these two broad categories.
- Select a single-study quantitative research study article related to your specialty track and provide the permalink to the article. Then discuss each of the following items.
- Identify whether the research study design is experimental, quasiexperimental, or nonexperimental. Provide the rationale for your answer.
- Identify the appropriate representation for the research study article you selected using the nomenclature of X for intervention, O for observation and data collection, and R for random a assignment to a research study group.
- Identify the type of sampling (probability vs. nonprobability) that was used in the research study article you selected.
- Identify one advantage and one disadvantage to the sampling type used (probability vs. nonprobability).
- Identify whether there was random assignment to research study groups in the research study article you have selected.
- If random assignment to groups was used, how does this strengthen the research study design?
Nr505 Week 3: Elements Answer
The chosen quantitative study for examination is “Efficacy of HPV-based screening for prevention of invasive cervical cancer: follow-up of four European randomized controlled trials” by Ronco et al. (2014). The article’s permalink is available at https://www.sciencedirect.com/science/article/pii/S0140673613622187.
Ronco et al. (2014) employed an experimental study design, a scientific approach where specific variables are held constant while others are measured as the subject of the experiment (Hancock & Algozzine, 2016). In the context of this study, randomized controlled trials were implemented to assess the efficacy of Human Papillomavirus (HPV)-based screening in preventing invasive cervical cancer. Across four distinct randomized trials, the researchers investigated the impact of HPV-based screening on cervical cancer prevention.
Experimental designs, such as randomized controlled trials, are recognized for their ability to establish causal relationships by manipulating variables and comparing outcomes.
In the case of Ronco et al.’s (2014) study, the utilization of randomized controlled trials enhances the internal validity of the research, providing a robust foundation for drawing conclusions regarding the efficacy of HPV-based screening in preventing invasive cervical cancer. This approach aligns with the rigorous standards of scientific inquiry, contributing valuable insights to the field of cervical cancer screening and prevention.
