Mike Has Developed an Intervention for Social Anxiety

Multiple Choice

Mike has developed an intervention for social anxiety.He recruits individuals from a local clinic who have extremely high levels of social anxiety as measured by a standardized test.After the intervention,their average score is closer to the population mean on the social anxiety test.While Mike would love to assume that his intervention has been effective,he is also aware that there is a(n) ____ threat.

A) history
B) mortality
C) instrumentation
D) regression