Quasi-Experimental Designs in Practice-based Research Settings: Design and Implementation Considerations

Quasi-experimental designs in practice-based research settings: design and implementation considerations.

BACKGROUND Although randomized controlled trials are often a gold standard for determining intervention effects, in the area of practice-based research (PBR), there are many situations in which individual randomization is not possible. Alternative approaches to evaluating interventions have received increased attention, particularly those that can retain elements of randomization such that they...

Randomized Experiments and Quasi - Experimental Designs 5 RANDOMIZED EXPERIMENTS AND QUASI - EXPERIMENTAL DESIGNS IN EDUCATIONAL RESEARCH

Experimental and quasi-experimental designs for evaluating guideline implementation strategies.

The choice of study design for guideline implementation studies will determine the confidence with which the observed effects can be attributed to the interventions under study. In general, cluster randomized trials, of which there are different types, provide the most robust design. However, the use of these designs has implications for the power, conduct and analysis of studies. Wherever poss...

Quasi-Experimental designs for quality improvement research

Presentation Quality Improvement (QI) research may be defined as “the design, development and evaluation of complex interventions aimed at the re-design of health care systems to produce improved outcomes”. The challenge of QI lies in bridging the gap between knowing what needs to happen at an individual patient level and implementing this at a systems level. The inherent complexity of systems ...

A tutorial on Quasi-experimental designs

A main step in answering a scientific hypothesis in an epidemiological study is deciding which type of study is suitable to be undertaken, considering methodology, practical considerations and budget and time limitations