If a Researcher Collects Data Using an Instrument from a Group

Multiple Choice

If a researcher collects data using an instrument from a group of participants who vary greatly from the instrument's norming group, what does this mean?

A) The study is only moderately valid
B) You should downgrade your evaluation of the quality of the research study because the measurement was of highly questionable validity
C) You can assume that the instrument still worked well
D) The study had a high interscorer reliability correlation