RCT Flashcards
where are RCT on the hierarchy of evidence?
second top
what is on the top of the hierarchy of evidence?
meta-analyses of RCT
what is the hierarchy of evidence used for?
to make decisions of what treatments should be used
how are RCT controlled?
they have a control group
why is a control group important
to compare outcomes as some people get better on their own
what shows some people get better on their own
whiteford et al 2013 study on depresison
what kind of control is the best to have
an active control
how are RCTs randomised
PP’s randomly allocated to each group
why is randomisation good
prevents bias
why are meta-anaysis good for RCT
help spot bias, diverse
are RCT free from bias
no, could have finial conflicts of interest so fix results
what is researcher allegiance
when been trained in a psychotherapy so will benefit from it doing well
who shows RCT is biased
Munder et al.’s (2013) review of 30 meta-analyses showed medium-sized association between how effective a therapy is and the researcher’s allegiance to that therapy.
Cuijpers and Cristea (2016):
show how to fix a study
how to fix a study Cuijpers and Cristea (2016):
don’t randomise, no blind raters, cherry pick, outcome switch, sit on negative results,
