Twenty opinions were made to evaluate people’s segregation against criminals and the limited adjective check list which contains 12 adjectives were devised to obtain semantic responses toward the words of “a criminal” “a juvenile delinquent” and “a person”.

Subjects were asked to tell the degree of agreement about 20 opinions and to mention the degree of appropriateness of 12 adjectives in expressing each 3 words.

The data of 156 subjects were analyzed at large and then by age groups, self-identified social classes, the positive or negative perception to a person, the frequency of seeing the criminal dramas and stories presented in TV, and the degree of the ego-involvement toward the problem of the crime and juvenile delinquency in the society.

Some of the results are as follows : (1) 20 opinions were formed into three sub-groups through the correlation method. (2) Criminals were percepted as complicated and incomprehensible as juvenile delinquents while they were associated with “cruel” “hateful” and “unexcusable” more than juvenile delinquents. (3) High-school boys showed less segregation and less hostility to criminals than any other age groups. (4) The middle class was more hostile and unsympathetic toward criminals than the upper or lower class. (5) People concerned about the problem of the crime and juvenile delinquency in the society showed the positive feeling and less segregation against criminals.

Y-G test was performed to 224 adolescent boys between 14 and 19 years old. The results were analysed by ages and 4 criminal types, that is, larceny (L), bodily injury and violencies (V), extortion (E) and sexual misconducts (S). (Table 2)

We made “A” and “B” scales for discriminating the 4 types. “A” scales made of responses of over 50 % to every type. (Table 3) “B” scale made of the responses statistically significant to every type. (Table 4) Each scale gives 4 scores; L-score, V-score, E-score, and S-score per a delinquent.

Both scales discriminated the types with fairly good level, namely, the highest score tended to point out his misdeed. (Table 5 & 7)

This suggests that there is a new type of criminal theory which depends on the idea of vector.

In the future, the other types of criminal behaivor, as vectors, will be added to this study.