Construction Scale Classified Criteria (rubric) for the Evaluation of Greek Traditional Dance. Validity and Reliability

Abstract

The purpose of the study was to develop and examine the validity and reliability of an analytic rubric for the evaluation Greek traditional dance performance. The development of the rubric was based on the fundamentals of the list of criteria or "what it measures" and the performance levels of each criterion. Two experts Greek traditional dance agreed among themselves on the conceptual relevance of each criterion for the adequacy of their numbers and the accuracy of the description of each performance level, establishing the content validity of rubrics. So for the construction eight criteria were selected, dance identification, response to the rhythm of the dance, synchronization, step sequence, direction-scheme and type of hand holding of the dance, body stance and position, quality characteristics of the movement, and expressiveness. Also, five performance levels were defined for each criterion, not acceptable, marginally acceptable, moderate acceptable, very good, and excellent. From the grading of each criterion a total score for the dance was calculated. Convergent validity was examined correlating assessment through rubrics with the subjective and holistic evaluation of an expert. The values of the correlation coefficient r ranged from 0.845 p <0.01 to 0.904 p <0.01. In order to check rubric reliability fourteen students, beginners to the dance experience (age 18-20 yrs) were examined in their ability to identify three traditional dances from their music, to respond to the rhythm of the dance with hand clapping and perform the kinetic form of each dance. Absolute agreement between raters on the total score of the dances ranged from 79% to 93%, adjacent agreement was 100%, single ICC from 0.908 to 0.956, average
ICC from 0.94 έως 0.983, Spearman’s r from 0.921 to 0.940 and Cronbach’s a from 0.95 to 0.982. In addition, the absolute agreement between two grading of the same rater ranged from 79% to 100%, adjacent agreement was 100%, single ICC from 0.964 to 0.994, average ICC from 0.982 to 0.997, Spearman’s r from 0.956 έως 0.994 and Cronbach’s a from 0.981 to 0.998. It is concluded that the above rubric is a valid and reliable to use tool, which can objectively, fairly and consistently documented the level of dancing skills of the students.