Abstract:
The objectives of the research were 1) to create visual art rubrics and feedback data sets for visual art according to feedback and feedforward approaches, 2) to investigate the qualities of rubrics and feedback data sets, and 3) to compare visual art development between styles of feedback data sets and art skill levels. The quality investigation included the analysis of content validity, construct validity, interrater agreement, and internal consistency. The research participants for comparing the development were 79 tenth grade students in Nonthaburi. Research instruments were art assessment manual, art rubrics and three styles of feedback data sets namely simple feedback style, feedforward style, and mixed style. The analytical methods consisted of repeated measures ANOVA and one-way ANOVA techniques. The research findings were as follows: 1) Visual art rubrics and feedback data sets consisted of four criteria which were elements of art, composition, skill, and originality. 2) Visual art rubrics construct validity was supported by known group method. Interrater agreement indices reflected by Cohens kappa were fair at the .05 level of significance. Internal consistency obtained by Cronbachs alpha was rather high (r = 0.797). 3) Visual art development in period 2 was higher than the development in period 1 and the development in period 3 was higher than the development in period 2 at the .05 level of significance. In period 3, students with high art skill level obtaining feedforward style had visual art development more than those who obtained simple feedback style and mixed style at the .05 level of significance.