本研究參考胡志偉（Hue, 2003）的設計，以教育部（民89）的「國小學童常用字詞調查報告書」為字庫，將5,021個字分成17級，按字級分層抽樣，編製成「識字量評估測驗」，以此工具推估一到九年級學生的識字量。結果顯示：一、二、三、四、五、六、七、八、九年級之學生平均識字量約分別為700，1,200，2,100，2,600，3,100，3,300，3,500（七、八年級）以及3,700字。隨年級的增加，學生的識字量也跟著增加。另外，各年級女生的識字量皆優於男生。在識字量成長方面，小一至小五之間的成長最為快速，小六之後則趨於平緩。

This study was to estimate the number of Chinese characters school students know from Grade 1 to 9. There were 2,842 students randomly selected from 19 schools in Taiwan. A 5,021 high-frequency character set was divided into 17 levels in terms of difficulty. A character list was then sampled from the 17 divided levels. Results showed that the average number of characters a student knew from Grade 1 to 9 increased from 700 up to 3,700. They also indicated that there were significant grade and gender effects. Students gained in number of Chinese characters at a rapid rate during the period of Grade 1 to 5. Based on the results, some suggestions for curriculum standards and the basic literacy education were proposed.