PloS one
The impact of contamination bias when replicating maltreatment effects on child behavior problems
Door Olson AE, Felt JM, Greifer N en 4 anderen.
Inhoud in het Engels
Abstract
Background
Contamination, when members of a comparison condition receive or are exposed to a treatment under investigation, can bias the direction, statistical significance, and magnitude of treatment effects.
Objective
This pre-registered study examined whether contamination biased estimates when replicating child maltreatment effects on two established outcomes, externalizing and internalizing behavior problems.