電視字卡呈現型式對學生學習成效之研究-以空大教學課程為例

Abstract

電視媒體集聲.光.色彩於一身,所提示的訊息包括:真實的圖像.畫像,更有 文字的敘述,本研究以媒體教學影響學習效果為基礎,探討電視教學媒體中 字卡呈現的數量與訊息量,對學生的學習是否會產生不同的影響.本研究採 用準實驗研究法進行,有效樣本為250位空大在學學生,共分七組3x2的實驗 設計,實驗過程中特別著重研究工具中錄影帶實驗教材與成就測驗的製作, 以提高本實驗研究的信度與效度.本研究認為,媒體的呈現型式影響訊息的 提示,對學生的學習產生不同的影響,在隔空教育日趨重要的時代中,應就 媒體教學的呈現型式有計畫的研究,以擴大教學效果; With light,sound,and color,television provides information in the form of images,pictures,and text. This study investigates whether the effectiveness of educational television programs is influenced by the frequency of text inserts and the amount of information each insert contains.Quasi-experimental design was used for this study. An effective sample of 250 students enro- lled in the National Open University was divided in to seven groups,and a three-by-two experimental design was used.To maxi- mise the reliability and effectiveness of this study,video- taped teaching material was employed and a purpose-specific competency test was used. The finding of this study indicate that the form of presentation used in the television medium influences the presentation of information and has varying effects on educa- tional effectiveness.In an age where distance education is grow- ing in importance,carefully planned research is needed on the form of presentation used in media-based education. This will enhance the effectiveness of broadcasting;