True or False
The gold standard for evaluating tx efficacy is Quasi-Experimental Designs.
False-RCT's
RCT = randomized assignment (gold standard for efficacy)
Quasi-experimental = no random assignment = useful alternative, but not the gold standard.
What is selection bias?
When eligible participants are included or excluded in a way that skews the association between the intervention and outcome
Why is blinding important in experimental studies?
To reduce bias, especially in self reported outcomes
A limitation of a single subject design is that they have limited generalizability
True
The PEDro Scale is an ____-item checklist used to assess the ______ and _____ validity of RCT's.
The PEDro Scale is an 11-item checklist used to assess the quality and internal validity of RCT's.
What is a washout period, and why is it crucial in RCTs.
It's the period between two interventions when researchers are waiting for the participants to return to baseline after the first intervention before beginning the next one.
They are important because they allow participants to return to baseline. Without any washout period, the researcher would not know which intervention has what effect.