Ntozake Conducted a Study in Which She Observed Bullying in a Middle

Multiple Choice

Ntozake conducted a study in which she observed bullying in a middle school physical education environment. She conducted the study over a three-week time period. This may not have been long enough to combat observer effects. This illustrates which of the following concerns with conclusions from Ntozake's study?

A) An instrumentation threat
B) An internal validity threat
C) A history threat
D) An external validity threat