The Universal Language - DISC Reference Manual
The Universal Language DISC reference manual is the most complete manual pertaining to DISC language on the market today! This hard-cover manual contains over 350 pages of useful information on behavioral styles. This books defines and establishes the parameters of the DISC language, provides solid logical reasons for the necessity of learning the DISC language and assists in the understanding of why behavior may need to be modified.
Validity Study
Research and validity is the very heart or essence of any instrument/questionnaire. All Target Training International instruments/questionnaires have met the highest standards in the industry and this study includes many of the formal studies that have been done with TTI products. This study addresses Face Validity, Construct Validity and Predictive Validity of the Style Analysis Instrument.
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