Original MSI J - Adolescent Male Form
The Original MSI J was designed to measure the sexual characteristics of adolescent male sex
offenders (12 to 19 years old) it is also useful for older clients who are socially delayed. It can
be used both to do a sex deviance evaluation as well as to measure treatment progress. It was first
published in 1986.
Description and Scales
The Original MSI J contains 20 scales and a brief Social History. The core scales are the validity
scales and the basic paraphilia scales of Child Molest, Rape and Exhibitionism with additional scales
assessing other paraphilias (fetishes, voyeurism, bondage / discipline, and sado-masochism, sexual
dysfunction, sex knowledge and treatment attitudes. This form has basically the same scales as the adult
form but has some different item content because of the age and experience of adolescents. There is an
additional scale, the Sex Apprehension/Confidence scale. The test booklet contains some definitions to
assist in understanding the item content.
Since the basic scales of the Original MSI J are the same for the adult male version, it is assumed that
the psychometric structure of the MSI J is equivalent. As noted the scales have fairly good test retest reliability
(r=.89) and most scales have alpha coefficients greater than rtt=.80. Norming for the scales was undertaken using
N=100 pre-treatment adolescent child molesters ranging in age from 12-18 (mean age15.14). Nearly 75% of the sample
came from Washington state and the rest from Oregon, California, Texas and Georgia. All but 17% were community
based referrals. The victims molested were of both genders and 37% of the adolescent sex offenders admitted to other
paraphilias. Norms for the Rape and Exhibitionism scales were taken from the adult norms.
Form of Test
The Original MSI J is a paper and pencil test with 300 true/false questions and takes approximately 45
minutes for the client to take. It requires approximately a 7th grade reading level, however, a cassette tape of
the questions is available for use those clients who have reading difficulties. The MSI J Scoring Templates
are color coded for easy use and are designed for efficient scoring. Original MSI J forms can be scored in
approximately 7 minutes. The scoring information is placed on a profile form designed for ease in interpretation
The 50 page Multiphasic Sex Inventory Manual contains information on the interpretation of the 20 scales as
well as response pattern interpretations.
The Original MSI J is only available in English and has not been translated into any other languages.
The Original MSI J is only available for qualified clinicians to score and interpret on their own, a test
scoring and interpretation service is not available. The completed answer sheet must be scored by hand using templates
are the scores are recorded on a simple two page profile form that can be used in a clinical interview, report writing,
treatment planning, assessing treatment progress etc. For information on obtaining a Original MSI Test Kit,
please refer to our ordering information.