诊断性测验是一种特殊的教学测验 ,它是采用较为稳定的测量工具 ,即在特定的教学场合施用经过科学编制的以诊断为目的的测验 ,是以诊断学生普遍存在的知识、技能、思维、心理缺陷 ,判断其程度 ,并以揭示教与学不良症结为目的的。诊断性测验是化学教学诊断的一种最有效的形式。 The diagnostic test is a special kind of teaching test. It uses a relatively stable measurement tool, that is, the use of scientifically prepared tests for diagnosis in specific teaching situations. It is to diagnose students’ knowledge, skills and thinking. , psychological defects, judging their extent, and to reveal the teaching and learning of the crux of the problem for the purpose. Diagnostic tests are one of the most effective forms of chemistry teaching diagnosis.