0 - National Criminal Justice Reference Service

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Table 5
Treatment Exposure: Total Number of Hours bv Propram Tvpe
I
Education Outpatient TC Alumni Total
N 1080 826 723 118 2747
Mean 32.0 79.2 836.6 51.1 258.8
Std. Deviation 57.8 138.1 545.7 52.9 452.9
Std. Error 1.8 4.8 20.3 4.9 8.6
95% Confidence Interval
for Mean
Lower Bound 28.6 69.8 796.8 41.4 241.8
Upper Bound 35.5 88.6 876.4 60.7 275.7
i
The sample can also be described in terms of several important risk factors (e.g., prior and
current offense history, assessed level of need for drug treatment, age) and program selection
criteria (e.g., time remaining to minimum release date). Table 6 provides descriptive information
for inmates in the four program types.
Age at time of admission was calculated by subtracting the inmate’s birth date from the
date of program admission. DOC supplied time remaining to minimum release date, a primary
program selection criterion, as part of monthly data runs on all program admissions. Likewise,
DOC, based on the Pennsylvania Sentencing Commission Guidelines, supplied current and prior
offense gravity scores. Standardized drug scores, as noted earlier, were calculated based on the
inmate’s TCU Drug Screen score, ifavailable, or the inmate’s PACSI score, ifthe TCU was not
available. Because the TCU is a 0-9 scale, and the PACSI (the former DOC drug screening
instrument prior to Jan. 1,2001) is a 0-10 scale, scores were transformed into standardized z-
scores and saved for analyses. Using one-way ANOVA, means were compared for each of the
program descriptors shown in Table 6.
63
This document is a research report submitted to the U.S. Department of Justice. This report has not
been published by the Department. Opinions or points of view expressed are those of the author(s)
and do not necessarily reflect the official position or policies of the U.S. Department of Justice.