N325 Types of Studies.pptx

N325 Types of Studies.pptx - N325 Types of Studies FILTERED...

Info icon This preview shows pages 1–13. Sign up to view the full content.

View Full Document Right Arrow Icon
N325: Types of Studies FILTERED EVIDENCE Systematic Reviews / Meta-analyses Critically appraised topics CATs UNFILTERED EVIDENCE (Single Studies) Experimental Randomized Controlled Trials Quasi-experimental studies Descriptive Narrative (Simple) Descriptive Correlational Descriptive
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Filtered reviews: ____ Systematic Review ____ Focused Review Unfiltered - Single studies: Experimental: ____ RCT ____ Quasi Descriptive: ____Narrative __Correlational ____ Qualitative You should be able to identify level of evidence: LOE I II a II b III
Image of page 2
FILTERED EVIDENCE Systematic Reviews / Meta- analyses Focused Review Filtered resources appraise the quality of studies and often make recommendations for practice. Clinical Practice Guidelines are often based on systematic reviews
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Authors of a systematic review ask a specific clinical question, perform a comprehensive literature search, eliminate the poorly done studies and attempt to make practice recommendations based on the well-done studies. Usually, the studies reviewed are RCTs A meta-analysis is a systematic review that combines all the results of all the studies into a single statistical analysis of results. Systematic Reviews / Meta-Analyses
Image of page 4
Focused Reviews Authors of focused reviews evaluate and synthesize information from multiple research studies Authors do not identify multiple database searches Synthesis gives focused review of a topic rather than attempting to capture all that is known about a topic
Image of page 5

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
UNFILTERED EVIDENCE (Single Studies) Experimental (Randomized Controlled Trial (RCT) Quasi- experimental Descriptive Quantitative Descriptive Qualitative Descriptive
Image of page 6
How do I know I am looking at research study?
Image of page 7

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Primary (single studies) usually have the following (or similar) headings in the abstract and the article I ntroduction M ethod R esults A nd D iscussion IMRAD
Image of page 8
Randomized Controlled Trials Quasi-experimental studies Experimental Studies
Image of page 9

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
A true experimental design is when the researcher: provides a treatment (intervention) to one or more groups measures an outcome to see the effect of the treatment. There is a control group which does not receive the treatment. Subjects are randomly assigned to either the treatment or the control group. Mean scores of the outcomes are compared to determine if the treatment seems to have caused the outcome. The treatment is called the independent variable. The outcome is called the dependent variable. Randomized Controlled Trial (RCT)
Image of page 10
Has experimental design as described for the RCT Lacks one or both: Random assignment to groups Control group Quasi-experimental Study
Image of page 11

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
An example of a randomized controlled trial (RCT): This study was done to understand whether calcium tablets work to prevent broken bones in women with low bone density. Women with low bone density were randomly assigned to one of two groups. One group receives calcium and the control group receives a placebo (inactive substance). The numbers of women who suffer fractures in each group are compared to find out whether calcium works to prevent fractures.
Image of page 12
Image of page 13
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern