Class Two Flashcards
what is reproducibility
ability to reproduce study results by other researchers
should the dependent variable be quantitative or qualitative
quantitative - numerical
why is it important for the control & experimental groups to be as similar as possible
to rule out confounding factors
placebo effect
believing that treatment is being administered which leads to a measurable effect
how to counter placebo effect
double blind experiment
what is sampling bias
if it is not equally likely for all members of a population to be sampled
what is attrition
participants dropping out of the study
construct validity
the instruments measure what they’re supposed to
replicability
repeated measurements lead to similar results
response bias
participants not having perfect insight into their state + providing inaccurate responses
between subjects design
comparisons made between subject (one group and another)
within subjects design
comparing the same group at different times
mixed methods research
combination of different research techniques
such as combination of between & within subjects design
type 2 error
concluding that there is no effect, false negative
type 1 error
saying there is an effect when there actually isn’t
is a type 1 or 2 error better
type 2 error
what is a p value
represents the probability that a difference observed is due to chance
a smaller p value means..
there is a stronger relationship
external validity
ability to apply scientific results to the real world
internal validity
are there inherent flaws in the design?
what are demand characteristics
the tendency of participants to act in ways that match how they are expected to behave
demand characteristics have an effect on..
internal validity
predictive validity
does the test tell us about the variable of interest?
impression management
participants adapting their responses to what they think the right response is
threat to internal validity