A different sample looked at 144 offenders incarecerated only in Texas and 137 of those 144 completed the PAI as mentioned above to help classify them. The average age of this 144 people was 36.99 years. The same sample was pretty racially diverse given that roughly half was white, 35% was black, 16.1% was Hispanic and the other 0.7% was something else (Caperton, Edens & Johnson, 2004).
As for how all of this impacts the study, a sample of less than 100 or 200 people in a larger pool of 100,000 is pretty small. However, to have a sample near or above 100 is still not bad although the sample should have been larger for the Texas sample since they have such a large share of the United States population and, probably, the population of sex offenders as well. Even with the size of the sample being small, the results showed a standard deviation of just over one-half over the...
That being said, standard deviation can vary for reasons other than the sample being paltry.
Conclusion
The aim of the study above was to compare/contrast the classifications tools that exist out there including PAI, ANT, and other commonly used ones. The study used a modest, but should have been larger, sample but its results structure was well-defined and seemingly well thought-out. Raising the sample size at least some would have helped the efficacy and validity of the study greatly and it's odd that more people were not used given the wealth of subjects available (Caperton, Edens & Johnson, 2004).
References
Caperton, J.D., Edens, J.F., & Johnson, J.K. (2004). Predicting Sex Offender
Institutional Adjustment and Treatment Compliance…
