Experimental Errors Flashcards
Rejecting the null when the association isn’t real
“Convicting an innocent man to prison”
Type I error: finding an effect that isn’t real
“Retaining” or “Failing to Reject” the null hypothesis when the association is real
“Not convicting a guilty man”
Type II error: missing an effect that does exist
within the confines of the study results appear to be accurate and interpretation of the results are supported
Internal validity (randomized trial)
results and interpretations of the study apply outside the studied population. Also called generalizability
External validity (cohort/case-control study)
Degree to which a measurement represents a true value
Validity of Data
Degree to which the measurements are reproducible
reliability
Subjects wish to respond in what they perceive as a correct response
Social Desirability Effect
People may act differently when they know they are being watched
Hawthorne Effect
The ___ analysis is the first step in preventing errors
power
Survivor bias common in?
Cross-sectional studies
