跨年級中學生認知地圖之分析研究

Abstract

本研究針對全國概念調查的結果進行次級資料分析(seconda可data analysis) ，目的在探索中學生的認知地圖及其形成的相關限制因素。研究的分析架構是以Hempel (1958) 描述現象觀察的理論解釋與Wellman ( 1994 )和其他學者(C峙ib-draa & Desharnais, 1998; Pe缸， Sossa， &Gutierrez, 2008) 詮釋因果推論的認知地圖為基礎。首先，研究者依據全國概念調查雙層診斷測驗試題內容(Chiu ， 2007) ，找出特定概念間的相互關係;其次，透過雙層試題的語意連結，形成不同試題選項之認知地圍的質性描述;最後，分析跨年級中學生認知地圖的分布情形，藉以瞭解學生在概念發展上的差異。本研究結果指出:一、跨年級中學生正確連結理論系統與經驗觀察的人數比例，雖然隨年級增加而提高，但是比例仍然偏低。二、在相似情境試題中，跨年級中學生受到壓力、重量以及隨機性等不同限制因素的影響，會形成不同類型的認知地圖。本研究所確認的概念限制因素可解釋認知地圖在概念圖像化的因果推論關係，而以認知地圖作為次級資料分析的研究方法所產生的限制與對研究的意涵將在文末一併討論。

The purpose of this secondary data analysis study is to explore the cognitive maps (CMs) held by the students and their constraints of conceptions while forming their qualitative inferences regarding the behaviors of gas particles. The data used in this study was derived from the National Science Concept Learning Study via the use of two-tier diagnostic instruments proposed by Treagust (1988, 1995). Unlike other studies only comparing student performance, the analytical method of this study adapted a model of scientific explanations proposed by Hempel (1 958), and cognitive maps by Wellman (1 994) and others (Chaib-draa & Desharnais, 1998; Pefia, Sossa, & Gutierrez, 2008). The results are as follows: (1) although the performances of 11th graders were superior to those of 8th and 9th graders, the percentages of correct answers were still relatively low; (2) in similar contexts, due to the constraints (gravity, pressure, and randomness of motions) of factors, the students held various CMs of gas particles and causal inferences. The identified CMs of gas particles provide information regarding the constraints that students held in their mental representations. This study presents a discussion of the educational implications for designing two-tier diagnostic instruments, and the limitations of CMs.