Attitude is an important psychological determinant of the behavior of an individual. Measurement of such attitude of tank users towards community participation is essential for tank management. Many social researchers measure multidimensional variables, such as community participation, by aggregating the scores of individual dimensions / sub-dimensions. These dimensions / sub-dimensions are highly correlated and have inherent problems of multicollinearity which causes attenuation in measurement. Community participation is a multidimensional variable, whereas it is being measured as if it was a uni-dimensional variable. The data on community participation have been collected from randomly selected 40 experts related irrigation, rural development, extension, agriculture and panchayat raj departments. The collected data exposed to statistical tools like item total correlation, t-test followed by principal component analysis. The scale was standardized by testing its reliability (r = 0.83) and validity (validify coefficient= 0.91). The final scale consisting of 39 statements (29 positive and 10negative) categorized in to 7 dimensions i.e. Resource sharing behavior (6), Collective behavior (5), Capacity building (6), Responsibility (6), Involvement (6), Collectivism (4) and Self-perception (6) was presented to respondents with instructions to indicate their agreement on five-point continuumviz. strongly agree, agree, undecided, disagree, and strongly disagree with the weightages of 5, 4, 3, 2 and 1 for positive statements and vice versa for negative statements, The attitude score of each respondent is obtained by summing up the scores on all attitude statements.