Study Design — Flashcards

Selection bias is an error introduced in _____ that occurs due to a(n) nonrandom sampling or treatment allocation of subjects

In a Proportion of A/B, is A part of B? _____

If a treatment for a particular disease is developed the prolongs life but doesn't result in a cure... (options = incidence, prevalence, CFR, Mortality rate) - _____ is not affected - _____ increases, because affected live longer - _____ would depend on the stage of disease, but in general would decrease since less are likely to die during given time period - _____ in general would decrease since you would likely have less deaths in a given time period

Measurement Bias and Procedure Bias differ in that the former is due to a(n) _____ procedure and the latter is due to a procedure applied in a(n) differential manner

Publication bias ("the file drawer effect") is a systematic error of _____ that results from only using published studies

Is effect modification a form of bias? _____

In order to determine a confidence interval of a(n) _____ at a given alpha value, the standard deviation, and sample size are also necessary

An incidence density rate (IDR) measures the _____ of the disease in a population at a given point in time

Assembly Bias occurs when groups of _____ assembled for prognostic study _____ in ways other than prognostic factors under study

Hint: patients

What type of study design starts with cohort studies in which participants are followed over time, and participants who develop an outcome of interest become cases for a case-control study? _____