I believe the answer is: Known-groups paradigm
A study is considered to have Known-groups paradigm if the researchers understand that the measure that they take will discriminate a certain groujp of subjects because of their known behavior.
From the case above Dr. Sheffield create a test to determine whether the subject unable to resist impulses to gamble.
The subjects that he use is <u>a group of ex-gamblers</u> who acknowledge they have a gambling problem (gamblers anonymous) and a group of ex-alcoholic who acknowledge they have drinking problem (AA). We can say with high certainty that dr. Sheffield <u>knew really well that people on GA will have higher scores.</u> He just want to how big is the difference compared to the scores from AA group.
Answer: 5n+1
Do you need the working out?
10,500 got it right on edge!!
