Thank you so much for your previous information about the CAP! It is such a structured treatment program that directly addresses criminal attitudes; however, there are no extant data as to its effectiveness. Maybe our project could try to fix the gap! Therefore, I wonder if you could give some suggestions about how to choose the measurement scale?

No worries.

Thanks for the information.

Glad to hear about your progress! Given the CAP is oriented toward criminal attitudes, it was logical and essential to include a measure of criminal attitudes. You may consider the Criminal Sentiments Scale–Modified (CSS-M). The CSS-M is a 41-item self-report instrument measure that measures criminal attitudes, values, beliefs, and justifications directly related to criminal activity. There are five subscales: Attitudes Toward the Law, Attitudes Toward the Courts, Attitude Toward the Police, Tolerance for Law Violations, and Identification with Criminal Others. The first three subscales are typically combined to form the Law-Court-Police subscale that assesses respect for the law and criminal justice system. The Tolerance for Law Violations subscales assesses specific justifications for law violations and the Identification with Criminal Others measures personal evaluative judgments about law violators. The CSS-M is scored according to a 3-point Likert-type scale with each endorsement of an antisocial statement yielding 2 points, a rejection of an antisocial statement (or acceptance of a prosocial statement) yielding 0 points, and undecided responses yielding 1 point. Higher scores on the CSS-M reflect greater criminal attitudes. Research attests to the psychometric integrity and constructs validity of the CSS-M.

You may try access the below article:
Simourd, D. J. (1997). The Criminal Sentiments Scale-Modified and Pride in Delinquency Scale: Psychometric properties and construct validity of two measures of criminal attitudes. Criminal Justice and Behavior, 24, 52-70.