The purpose of this discussion is for you to demonstrate an understanding and ability to search the library for quantitative re
The purpose of this discussion is for you to demonstrate an understanding and ability to search the library for quantitative research related to the practice problem. Use the focus of the Global Burden of Disease and National Practice Problems to guide your search for a quantitative article. Choose a quantitative research article about one of the National Practice Problems. These eight National Practice Problems include: COPD, mental illness, addiction, heart disease, diabetes, cancer, obesity, and safety. You will successfully demonstrate your library search skills to identify evidence
Johns Hopkins Nursing Evidence-Based Practice
Appendix E
Research Evidence Appraisal Tool
Evidence level and quality rating: |
Enter level and quality rating |
Article title: Article Title |
Number: Article Number |
Author(s): Authors names |
Publication date: Date |
Journal: Journal |
|
Setting: Setting |
Sample: Sample composition/size |
Does this evidence address my EBP question? ☐Yes ☐No-Do not proceed with appraisal of this evidence |
|
Is this study: ☐QuaNtitative (collection, analysis, and reporting of numerical data) Measurable data (how many; how much; or how often) used to formulate facts, uncover patterns in research, and generalize results from a larger sample population; provides observed effects of a program, problem, or condition, measured precisely, rather than through researcher interpretation of data. Common methods are surveys, face-to-face structured interviews, observations, and reviews of records or documents. Statistical tests are used in data analysis. Go to Section I: QuaNtitative ☐QuaLitative (collection, analysis, and reporting of narrative data) Rich narrative documents are used for uncovering themes; describes a problem or condition from the point of view of those experiencing it. Common methods are focus groups, individual interviews (unstructured or semi structured), and participation/observations. Sample sizes are small and are determined when data saturation is achieved. Data saturation is reached when the researcher identifies that no new themes emerge and redundancy is occurring. Synthesis is used in data analysis. Often a starting point for studies when little research exists; may use results to design empirical studies. The researcher describes, analyzes, and interprets reports, descriptions, and observations from participants. Go to Section II: QuaLitative ☐Mixed methods (results reported both numerically and narratively) Both quaNtitative and quaLitative methods are used in the study design. Using both approaches, in combination, provides a better understanding of research problems than using either approach alone. Sample sizes vary based on methods used. Data collection involves collecting and analyzing both quaNtitative and quaLitative data in a single study or series of studies. Interpretation is continual and can influence stages in the research process. Go to Section III: Mixed Methods |
Johns Hopkins Nursing Evidence-Based Practice
Appendix E
Research Evidence Appraisal Tool
Page 6 of 10
Johns Hopkins Nursing Evidence-Based Practice
Appendix E
Research Evidence Appraisal Tool
The Johns Hopkins Hospital/ The Johns Hopkins University
© 2017 The Johns Hopkins Hospital/ Johns Hopkins University School of Nursing 1
Section I: QuaNtitative |
||
Level of Evidence (Study Design) |
||
Is this a report of a single research study? A |
☐ Yes |
☐ No Go to B |
1. Was there manipulation of an independent variable? |
☐ Yes |
☐ No |
2. Was there a control group? |
☐ Yes |
☐ No |
3. Were study participants randomly assigned to the intervention and control groups? |
☐ Yes |
☐ No |
If Yes to questions 1, 2, and 3, this is a randomized controlled trial (RCT) or experimental study. |
LEVEL I |
|
If Yes to questions 1 and 2 and No to question 3 or Yes to question 1 and No to questions 2 and 3, this is quasi-experimental. (Some degree of investigator control, some manipulation of an independent variable, lacks random assignment to groups, and may have a control group). |
LEVEL II |
|
If No to questions 1, 2, and 3, this is nonexperimental. (No manipulation of independent variable; can be descriptive, comparative, or correlational; often uses secondary data). |
LEVEL III |
|
Study Findings That Help Answer the EBP Question: Enter Text Here |
||
Skip to the Appraisal of QuaNtitative Research Studies section |
Section I: QuaNtitative (continued) |
||
Is this a summary of multiple sources of research evidence? |
☐Yes Continue |
☐No Use Appendix F |
1. Does it employ a comprehensive search strategy and rigorous appraisal method? If this study includes research, nonresearch, and experiential evidence, it is an integrative review (see Appendix F). |
☐Yes Continue |
☐No Use Appendix F |
2. For systematic reviews and systematic reviews with meta-analysis (see descriptions below): B |
||
a. Are all studies included RCTs? |
☐LEVEL I |
|
b. Are the studies a combination of RCTs and quasi-experimental, or quasi-experimental only? |
☐LEVEL II |
|
c. Are the studies a combination of RCTs, quasi-experimental, and nonexperimental, or non- experimental only? |
☐LEVEL III |
|
A systematic review employs a search strategy and a rigorous appraisal method, but does not generate an effect size. A meta-analysis , or systematic review with meta-analysis, combines and analyzes results from studies to generate a new statistic: the effect size. |
||
Study Findings That Help Answer the EBP Question: Enter Text Here |
||
Skip to the Appraisal of Systematic Review (With or Without a Meta-Analysis) section |
Appraisal of QuaNtitative Research Studies |
|||
Does the researcher identify what is known and not known about the problem and how the study will address any gaps in knowledge? |
☐ Yes |
☐ No |
|
Was the purpose of the study clearly presented? |
☐ Yes |
☐ No |
|
Was the literature review current (most sources within the past five years or a seminal study)? |
☐ Yes |
☐ No |
|
Was sample size sufficient based on study design and rationale? |
☐ Yes |
☐ No |
|
If there is a control group: · Were the characteristics and/or demographics similar in both the control and intervention groups? |
☐ Yes |
☐ No |
☐N/A |
· If multiple settings were used, were the settings similar? |
☐ Yes |
☐ No |
☐N/A |
· Were all groups equally treated except for the intervention group(s)? |
☐ Yes |
☐ No |
☐N/A |
Are data collection methods described clearly? |
☐ Yes |
☐ No |
|
Were the instruments reliable (Cronbach’s [alpha] > 0.70)? |
☐ Yes |
☐ No |
☐N/A |
Was instrument validity discussed? |
☐ Yes |
☐ No |
☐N/A |
If surveys or questionnaires were used, was the response rate > 25%? |
☐ Yes |
☐ No |
☐N/A |
Were the results presented clearly? |
☐ Yes |
☐ No |
|
If tables were presented, was the narrative consistent with the table content? |
☐ Yes |
☐ No |
☐N/A |
Were study limitations identified and addressed? |
☐ Yes |
☐ No |
|
Were conclusions based on results? |
☐ Yes |
☐ No |
|
Complete the Quality Rating for QuaNtitative Studies section |
Appraisal of Systematic Review (With or Without Meta-Analysis) |
||
Were the variables of interest clearly identified? |
☐ Yes |
☐ No |
Was the search comprehensive and reproducible? · Key search terms stated |
☐ Yes |
☐ No |
· Multiple databases searched and identified |
☐ Yes |
☐ No |
· Inclusion and exclusion criteria stated |
☐ Yes |
☐ No |
Was there a flow diagram that included the number of studies eliminated at each level of review? |
☐ Yes |
☐ No |
Were details of included studies presented (design, sample, methods, results, outcomes, strengths, and limitations)? |
☐ Yes |
☐ No |
Were methods for appraising the strength of evidence (level and quality) described? |
☐ Yes |
☐ No |
Were conclusions based on results? |
☐ Yes |
☐ No |
· Results were interpreted |
☐ Yes |
☐ No |
· Conclusions flowed logically from the interpretation and systematic review question |
☐ Yes |
☐ No |
Did the systematic review include a section addressing limitations and how they were addressed? |
☐ Yes |
☐ No |
Complete the Quality Rating for QuaNtitative Studies section (below) |
Quality Rating for QuaNtitative Studies |
Circle the appropriate quality rating below: A High quality: Consistent, generalizable results; sufficient sample size for the study design; adequate control; definitive conclusions; consistent recommendations based on comprehensive literature review that includes thorough reference to scientific evidence. B Good quality: Reasonably consistent results; sufficient sample size for the study design; some control, and fairly definitive conclusions; reasonably consistent recommendations based on fairly comprehensive literature review that includes some reference to scientific evidence. C Low quality or major flaws: Little evidence with inconsistent results; insufficient sample size for the study design; conclusions cannot be drawn. |
Johns Hopkins Nursing Evidence-Based Practice
Appendix E
Research Evidence Appraisal Tool
Section II: QuaLitative |
||
Level of Evidence (Study Design) |
||
A Is this a report of a single research study? |
☐ Yes this is Level III |
☐ No go to II B |
Study Findings That Help Answer the EBP Question: Enter Text Here |
||
Complete the Appraisal of Single QuaLitative Research Study section (below) |
Appraisal of a Single QuaLitative Research Study |
||
Was there a clearly identifiable and articulated: · Purpose? |
☐ Yes |
☐ No |
· Research question? |
☐ Yes |
☐ No |
· Justification for method(s) used? |
☐ Yes |
☐ No |
· Phenomenon that is the focus of the research? |
☐ Yes |
☐ No |
Were study sample participants representative? |
☐ Yes |
☐ No |
Did they have knowledge of or experience with the research area? |
☐ Yes |
☐ No |
Were participant characteristics described? |
☐ Yes |
☐ No |
Was sampling adequate, as evidenced by achieving saturation of data? |
☐ Yes |
☐ No |
Data analysis: · Was a verification process used in every step by checking and confirming with participants the trustworthiness of analysis and interpretation? |
☐ Yes |
☐ No |
· Was there a description of how data were analyzed (i.e., method), by computer or manually? |
☐ Yes |
☐ No |
Do findings support the narrative data (quotes)? |
☐ Yes |
☐ No |
Do findings flow from research question to data collected to analysis undertaken? |
☐ Yes |
☐ No |
Are conclusions clearly explained? |
☐ Yes |
☐ No |
Skip to the Quality Rating for QuaLitative Studies section |
For summaries of multiple quaLitative research studies (meta-synthesis), was a comprehensive search strategy and rigorous appraisal method used? B |
☐ Yes Level III |
☐ No go to Appendix F |
Study Findings That Help Answer the EBP Question: Enter Text Here |
||
Complete the Appraisal of Meta-Synthesis Studies section (below) |
Appraisal of Meta-Synthesis Studies |
||
Were the search strategy and criteria for selecting primary studies clearly defined? |
☐ Yes |
☐ No |
Were findings appropriate and convincing? |
☐ Yes |
☐ No |
Was a description of methods used to: · Compare findings from each study? |
☐ Yes |
☐ No |
· Interpret data? |
☐ Yes |
☐ No |
Did synthesis reflect: |
☐ Yes |
☐ No |
· New insights? |
☐ Yes |
☐ No |
· Discovery of essential features of phenomena? |
☐ Yes |
☐ No |
· A fuller understanding of the phenomena? |
☐ Yes |
☐ No |
Was sufficient data presented to support the interpretations? |
☐ Yes |
☐ No |
Complete the Quality Rating for QuaLititative Studies section (below) |
Quality Rating for QuaLitative Studies |
Select the appropriate quality rating below: No commonly agreed-on principles exist for judging the quality of quaLitative studies. It is a subjective process based on the extent to which study data contributes to synthesis and how much information is known about the researchers’ efforts to meet the appraisal criteria. For meta-synthesis, there is preliminary agreement that quality assessments should be made before synthesis to screen out poor-quality studies1. ☐A/B High/Good quality is used for single studies and meta-syntheses2. The report discusses efforts to enhance or evaluate the quality of the data and the overall inquiry in sufficient detail; and it describes the specific techniques used to enhance the quality of the inquiry. Evidence of some or all of the following is found in the report: · Transparency: Describes how information was documented to justify decisions, how data were reviewed by others, and how themes and categories were formulated. · Diligence: Reads and rereads data to check interpretations; seeks opportunity to find multiple sources to corroborate evidence. · Verification: The process of checking, confirming, and ensuring methodologic coherence. · Self-reflection and self-scrutiny: Being continuously aware of how a researcher’s experiences, background, or prejudices might shape and bias analysis and interpretations. · Participant-driven inquiry: Participants shape the scope and breadth of questions; analysis and interpretation give voice to those who participated. · Insightful interpretation: Data and knowledge are linked in meaningful ways to relevant literature. ☐C Lower-quality studies contribute little to the overall review of findings and have few, if any, of the features listed for High/Good quality. |
1 https://www.york.ac.uk/crd/SysRev/!SSL!/WebHelp/6_4_ASSESSMENT_OF_QUALIT A TIVE_RESEARCH.htm 2 Adapted from Polit & Beck (2017).
Section III: Mixed Methods |
||
Level of Evidence (Study Design) |
||
You will need to appraise both the quaNtitative and quaLitative parts of the study independently, before appraising the study in its entirety. |
||
1. Evaluate the quaNitative part of the study using Section I. |
Level |
Quality |
Insert here the level of evidence and overall quality for this part: |
Level | Quality |
2. Evaluate the quaLitative part of the study using Section II. |
Level |
Quality |
Insert here the level of evidence and overall quality for this part: |
Level | Quality |
3. To determine the level of evidence, circle the appropriate study design: |
||
· Explanatory sequential designs collect quaNtitative data first, followed by the quaLitative data; and their purpose is to explain quaNtitative results using quaLitative findings. The level is determined based on the level of the quaNtitative part. · Exploratory sequential designs collect quaLitative data first, followed by the quaNtitative data; and their purpose is to explain quaLitative findings using the quaNtitative results. The level is determined based on the level of the quaLitative part, and it is always Level III. · Convergent parallel designs collect the quaLitative and quaNtitative data concurrently for the purpose of providing a more complete understanding of a phenomenon by merging both datasets. These designs are Level III. · Multiphasic designs collect quaLitative and quaNtitative data over more than one phase, with each phase informing the next phase. These designs are Level III. |
||
Study Findings That Help Answer the EBP Question: Enter Text Here |
||
Complete the Appraisal of Mixed Methods Studies section (below) |
Appraisal of Mixed Methods Studies3 |
|||
Was the mixed-methods research design relevant to address the quaNtitative and quaLitative research questions (or objectives)? |
☐ Yes |
☐ No |
☐N/A |
Was the research design relevant to address the quaNtitative and quaLitative aspects of the mixed-methods question (or objective)? |
☐ Yes |
☐ No |
☐N/A |
For convergent parallel designs, was the integration of quaNtitative and quaLitative data (or results) relevant to address the research question or objective? |
☐ Yes |
☐ No |
☐N/A |
For convergent parallel designs, were the limitations associated with the integration (for example, the divergence of quaLitative and quaNtitative data or results) sufficiently addressed? |
☐ Yes |
☐ No |
☐N/A |
Complete the Quality Rating for Mixed-Method Studies section (below) |
3 National Collaborating Centre for Methods and Tools. (2015). Appraising Qualitative, Quantitative, and Mixed Methods Studies included in Mixed Studies Reviews: The MMAT. Hamilton, ON: McMaster University. (Updated 20 July, 2015) Retrieved from http://www.nccmt.ca/ resources/search/232
Quality Rating for Mixed-Methods Studies |
Circle the appropriate quality rating below A High quality: Contains high-quality quaNtitative and quaLitative study components; highly relevant study design; relevant integration of data or results; and careful consideration of the limitations of the chosen approach. B Good quality: Contains good-quality quaNtitative and quaLitative study components; relevant study design; moderately relevant integration of data or results; and some discussion of limitations of integration. C Low quality or major flaws: Contains low quality quaNtitative and quaLitative study components; study design not relevant to research questions or objectives; poorly integrated data or results; and no consideration of limits of integration. |
,
Nephrology Nursing Journal March-April 2018 Vol. 45, No. 2 209
Exploring the Evidence Quantitative and Qualitative Research
Focusing on the Fundamentals: A Simplistic Differentiation Between Qualitative and Quantitative Research Shannon Rutberg Christina D. Bouikidis
R esearch is categorized as quantitative or qualitative in nature. Quantitative research employs the use of numbers and accuracy, while qualitative research focuses on lived experiences and human percep-
tions (Polit & Beck, 2012). Research itself has a few vari- eties that can be explained using analogies of making a cup of coffee or tea. To make coffee, the amount of water and coffee
grounds to be used must be measured. This precise meas- urement determines the amount of coffee and the strength of the brew. The key word in this quantitative research analogy is measure. To make tea, hot water must be poured over a tea bag in a mug. The length of time a person leaves a tea bag in the mug comes down to perception of the strength of the tea desired. The key word in qualitative research is perception. This article describes and explores the differences between quantitative (measure) and quali- tative (perception) research.
Types of Research Nursing research can be defined as a “systematic
inquiry designed to develop trustworthy evidence about issues of importance to the nursing profession, including nursing practice, education, administration, and informat- ics” (Polit & Beck, 2012, p. 736). Researchers determine the type of research to employ based upon the research question being investigated. The two types of research methods are quantitative and qualitative. Quantitative research uses a rigorous and controlled design to examine phenomena using precise measurement (Polit & Beck, 2012). For example, a quantitative study may investigate a
patient’s heart rate before and after consuming a caffeinat- ed beverage, like a specific brand/type of coffee. In our coffee and tea analogy, in a quantitative study, the research participant may be asked to drink a 12-ounce cup of coffee, and after the participant consumes the coffee, the researcher measures the participant’s heart rate in beats per minute. Qualitative research examines phenom- ena using an in-depth, holistic approach and a fluid
Exploring the Evidence is a department in the Nephrology Nursing Journal designed to provide a summary of evidence-based research reports related to contemporary nephrology nursing practice issues. Content for this department is provided by members of the ANNA Research Committee. Committee members review the current literature related to a clinical practice topic and provide a summary of the evidence and implications for best practice. Readers are invited to submit questions or topic areas that pertain to evidence-based nephrology practice issues. Address correspondence to: Tamara Kear, Exploring the Evidence Department Editor, ANNA National Office, East Holly Avenue/Box 56, Pitman, NJ 08071-0056; (856) 256-2320; or via e-mail at [email protected] The opinions and assertions contained herein are the private views of the contributors and do not necessarily reflect the views of the American Nephrology Nurses’ Association.
Copyright 2018 American Nephrology Nurses’ Association
Rutberg, S., & Bouikidis, C.D. (2018). Focusing on the fundamen- tals: A simplistic differentiation between qualitative and quantitative research. Nephrology Nursing Journal, 45(2), 209- 212.
This article describes qualitative, quantitative, and mixed meth- ods research. Various classifications of each research design, including specific categories within each research method, are explored. Attributes and differentiating characteristics, such as formulating research questions and identifying a research prob- lem, are examined, and various research method designs and reasons to select one method over another for a research project are discussed.
Key Words: Qualitative research, quantitative research, mixed methods research, method design.
Shannon Rutberg, MS, MSN, BS, RN-BC, is a Clinical Nurse Educator, Bryn Mawr Hospital, Main Line Health System Bryn Mawr, PA.
Christina D. Bouikidis, MSN, RNC-OB, is a Clinical Informatics Educator, Main Line Health System, Berwyn, PA.
Statement of Disclosure: The authors reported no actual or potential con- flict of interest in relation to this continuing nursing education activity.
Note: The Learning Outcome, additional statements of disclosure, and instructions for CNE evaluation can be found on page 213.
Continuing Nursing Education
Exploring the Evidence Quantitative and Qualitative Research
Nephrology Nursing Journal March-April 2018 Vol. 45, No. 2210
Focusing on the Fundamentals: A Simplistic Differentiation Between Qualitative and Quantitative Research
research design that produces rich, telling narratives (Polit & Beck, 2012). An example of a qualitative study is explor- ing the participant’s preference of coffee over tea, and feel- ings or mood one experiences after drinking this favorite hot beverage.
Quantitative Research
Quantitative research can range from clinical trials for new treatments and medications to surveying nursing staff and patients. There are many reasons for selecting a quan- titative research study design. For example, one may choose quantitative research if a lack of research exists on a particular topic, if there are unanswered research ques- tions, or if the research topic under consideration could make a meaningful impact on patient care (Polit & Beck, 2012). There are several different types of quantitative research. Some of the most commonly employed quanti- tative designs include experimental, quasi-experimental, and non-experimental.
Experimental Design An experimental design isolates the identified phenom-
ena in a laboratory and controls conditions under which the experiment occurs (Polit & Beck, 2012). There is a con- trol group and at least one experimental group in this design. The most reliable studies use a randomization process for group assignment wherein the control group receives a placebo (an intervention that does not have ther- apeutic significance) and the experimental group receives an intervention (Polit & Beck, 2012). For example, if one is studying the effe
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