## C243226 : MAJOR AUDIO-VISUAL EDUCATION
KEY WORD : SIZE OF LETTERS/ COLOUR OF LETTERS
POTE CRAIBOON : AN APPROPRIATE SIZE AND COLOUR OF LETIERS ON SCREEN PROJECTED BY AN OVEPHEAD PROJECTOR FOR MATHAYOM SUKSA STUDENTS.
THESIS ADVISOR : DR. SUGREE RODPHOTHONG. 93 PP.

          The purpose of this research was to study an appropriate size and colour of letters on screen projected by an overhead projector for mathayom suksa students.
Samples were 20 groups of mathayom suksa students of Benlamarachutit (chanthaburi) twelve students in each group. Sizes of letter were .50, .75, 1, 1.25 and 1.50 inchs. Colours were green, blue, red and black. Data was analyzed by Two-way analysis of variances. Findings were:
          1. No interaction was found between size and colour of letters on reads: scores.
          2. Significant different was found at .01 among size of letters. The 1.25 inch size showed the highest mean of reading scores.
          3. Significant different was found at .01 among colour of letters. The black colour showed the highest mean of reading scores.

................................................................................................