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Old 05-15-2006, 12:19 AM   #18
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Victus wrote
Down21 wrote
Im just wondering how good a model for instrumental aggression is this computer game? Im sure you could get a few false positives, since it is a lot easier to virtually mug somebody. Are you allowed ask for histories of aggressive behaviour/ criminal conviction etc. and then correlate that with your top 10% ers?
There are a few problems with this...

1) Most university students aren't going to have a criminal record, aside from underage drinking and the like, certainly almost none would have violent offenses on their records (compared to the forensic samples where almost all of them have violent records).

2) Even if the sample did contain a bizare amount of previous offenders, it would almost be the same as measuring the forensic samples, where instrumental aggression in psychopaths is established.

3) It's quite likely that at least some bottom 10% PPI scoring participants will commit instrumental aggression (if we're to agree that this tests that behavior). However on the whole, they should show much less of it than those in the top 10% of the PPI factors being measured.

So far I'm considering making 'level of necesity' a variable, where in one group is told that they must finish 1st in order to receive the reward and the other is not.
So the results will be skewed towards the aggressive side in all cases compared to real life since in reality most of these people do not regularly commit instrumental aggression. Can you think of any other factors besides (aggression) than could skew the results further for certain individuals? Like regular computer gaming or gambling?
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