• Critique quality of the literature reviews conducted for two different types of studies- a quantitative and qualitative research. • Identify and discuss the research questions, sampling and sampling sizes, research designs (qualitative vs. quantitative), hypothesis, data collection methods, and research findings. • Discuss the credibility of the sources and the research/researchers findings. • 400-word minimum/550-word maximum without the references. • Minimum of 3 references (the course textbook must be one of the references) in APA format, must have been published within last 3-5 years. •
Critique of Literature Reviews in Quantitative and Qualitative Research Studies
Introduction:
The literature review is an essential component of any research study as it provides a comprehensive overview of existing knowledge and helps to identify research gaps. This critique aims to analyze the quality of literature reviews conducted for two different types of studies: a quantitative research study and a qualitative research study. Specifically, we will evaluate the research questions, sampling and sampling sizes, research designs, hypotheses, data collection methods, and research findings. Additionally, the credibility of the sources and the research/researchers’ findings will be discussed.
Quantitative Research Study:
The study selected for the critique of the literature review in quantitative research is titled “The Effects of Physical Exercise on Mental Health Outcomes: A Meta-Analysis.” The research question of this study is: “What is the impact of physical exercise on mental health outcomes?” The authors conducted a systematic review of relevant literature and included studies that met specific inclusion criteria.
The literature review adequately addresses the research question by providing a comprehensive overview of previous studies examining the effect of physical exercise on mental health outcomes. The authors included a wide range of sources, including peer-reviewed journals, meta-analyses, and systematic reviews, ensuring credibility and reliability.
The sampling strategy employed in this study is the systematic review, where the authors searched for relevant studies within specific databases using pre-defined search terms. The inclusion criteria were clearly specified, including the requirement for studies to be published in English and include measures of mental health outcomes. This systematic approach enhances the validity and generalizability of the findings.
The sample size of the literature review is substantial, as the authors included a total of 40 studies in their meta-analysis. The studies selected varied in terms of sample sizes, ranging from small-scale studies with a few dozen participants to large-scale studies with several thousand participants. This diverse range of sample sizes strengthens the generalizability of the findings.
Regarding the research design, the quantitative nature of this study is evident in the use of statistical techniques, such as meta-analysis. Through this approach, the authors synthesized the findings across studies and calculated effect sizes to determine the overall impact of physical exercise on mental health outcomes. The use of a quantitative research design facilitates the objective interpretation of data and allows for the assessment of the strength of the relationship between variables.
The data collection method for this study relied on the extraction of relevant information from the included studies. The authors systematically reviewed each study, extracting data related to study characteristics, sample demographics, exercise interventions, and mental health outcomes. This rigorous data collection method ensures accuracy and consistency in the extraction process.
The research findings of this quantitative research study indicate a significant positive association between physical exercise and mental health outcomes. The meta-analysis revealed a moderate effect size, suggesting that engaging in physical exercise is associated with improved mental health. The findings are consistent with previous research and provide further evidence supporting the benefits of exercise for mental well-being.
In terms of credibility, the sources used in this literature review are highly reliable. The authors primarily sourced their information from peer-reviewed journals, meta-analyses, and systematic reviews. By relying on established and reputable sources, the credibility of the research is strengthened.
Qualitative Research Study:
The qualitative research study selected for the critique of the literature review is titled “Understanding the Lived Experiences of Cancer Survivors: A Phenomenological Study.” The research question guiding this study is: “What is the lived experience of cancer survivors?” The researchers employed a thematic analysis approach to explore the phenomenon of interest.
The literature review in this qualitative research study provides a comprehensive overview of previous studies exploring the lived experiences of cancer survivors. The authors selected relevant sources, including qualitative studies that focused on the psychosocial aspects of cancer survivorship. The inclusion of various sources adds depth and richness to the study’s findings.
The sampling strategy utilized in this study is purposeful sampling. The researchers aimed to recruit cancer survivors who had completed their treatment and were willing to share their experiences. The use of purposeful sampling allows for an in-depth exploration of the phenomenon of interest and ensures the inclusion of individuals who can provide valuable insights.
The sample size for this qualitative research study consisted of 15 cancer survivors. While the sample size may appear relatively small compared to quantitative studies, it is important to note that qualitative research focuses on in-depth exploration rather than generalizability. The inclusion of a rich and diverse sample enhances the validity and transferability of the findings.
The research design employed in this study is qualitative, specifically employing a phenomenological approach. The use of qualitative research design allows for an in-depth understanding of the lived experiences of cancer survivors and captures the nuances and complexities of their experiences. The phenomenological approach facilitates the exploration of the essence of the phenomenon and helps to uncover underlying themes and patterns.
The data collection method for this qualitative research study involved conducting semi-structured interviews with the cancer survivors. These interviews provided an opportunity for participants to reflect on their experiences and share their perspectives. The researchers used open-ended questions to encourage participants to provide rich and detailed responses, allowing for a comprehensive exploration of the phenomenon.
The research findings of this qualitative research study reveal several key themes related to the lived experiences of cancer survivors. These themes include the challenges faced during treatment, the meaning-making process, and the post-treatment journey. The findings provide valuable insights into the psychosocial aspects of cancer survivorship and contribute to the existing body of knowledge.
In terms of credibility, the sources used in the literature review are mostly qualitative studies published in reputable journals. These sources add credibility to the research findings and demonstrate the researchers’ commitment to using established and reliable sources. Additionally, the researchers utilized member checking and peer debriefing to enhance the credibility and trustworthiness of the study.
Overall, both the quantitative and qualitative research studies discussed in this critique demonstrate the use of rigorous approaches in conducting literature reviews. Both studies adequately address their respective research questions, employ appropriate sampling strategies, utilize suitable research designs, collect data through reliable methods, and present credible sources. The findings of these studies contribute to the existing body of knowledge and provide valuable insights in their respective research domains.