Date of Award:


Document Type:


Degree Name:

Master of Science (MS)




Elwin C. Nielsen


The purpose of this study was to make comparisons among regular vi marijuana users, heroin addicts and nondrug users on interpersonal dimensions of personality. Two interpersonal oriented instruments, the Interpersonal Check List (ICL) and the Fundamental Interpersonal Relations Orientation - Behavior (FIRO-B) were used to evaluate differences among these three groups.

The design of this study was a three group comparison. Each of these three groups contained between 28 and 30 subjects with age, education and socioeconomic level being controlled for in selection.

Three hypotheses were made directing investigation of/\the following three areas: One, discrepancy between the self and the ideal self on factors of love and dominance on the ICL. Two, differences on the wanted-inclusion scale of the FIRO-B. Three, discrepancy between expressed and wanted scores on the FIRO-B.

The results indicated that heroin addicts have greater discrepancy on love oriented interpersonal dimensions, that both the marijuana and heroin groups have significantly lower wanted-inclusion scores than nondrug users, and that there was no difference in the amount of discrepancy between the expressed and wanted FIRO-B factors.



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