A Study on the Development of a Systematic Body of Science Practical Test involving Modification and Creation of Questions

通过对以往试题的分类和新试题的开发，建立了科学实验试题库。在此之前，我们已经开发并测试了34个问题，最近，我们开发并评估了另外四个物理和两个地球科学的问题，总共有40个实验测试问题。总共有173个较小的问题，其中53个对应小学水平，94个对应初中水平，40个对应高中水平。这些问题在科学领域中分布相当均匀，物理48个，化学49个，生物41个，尽管地球科学只占11个问题。涉及操纵的问题有96条，涉及推断的有50条，涉及调查的只有27条。其中三条较新的问题-一个关于粘土的物理问题和两个地球科学问题-花岗岩和晶体的硬度-是根据特定领域的研究成员和合作者为我们制作的几个草稿修改的。会议研究了这些问题，批准作为适用于小学和初中的实验试题。另外三个物理问题-关于磁铁，干电池和橡皮筋的伸长-是基于IEA举行的第三次国际数学和科学研究的表现评估问题。

We have compiled a database of scientific experiment test questions by classifying previous questions and developing new questions. Previously, we had developed and trialled 34 questions ; more recently, we have developed and evaluated another four questions in physics and two earth sciences, makig a toal of 40 experiment test questions.Most of the questions consist of several smaller questions. There are 173 smaller questions in total, of which 53 correspond to elementary school level, 94 to lower secondary school and 40 to upper secondary school. The questions are fairly evenly spread among science field, with 48 in physics, 49 in chemistry and 41 in biology, although the earth sciences account for only 11 questions.In terms of objectives, there are 96 questions involving manipulation compared to 50 involving inference and only 27 involving investigation.Three of the more recent questions -a physics question on clay and two earth sciences questions granite and the hardness of crystal -were modified from several drafts produced for us by field-specific research members and collaborators. These were studied by the conference approved as experiment test questions suitable for elementary and lower secondary schools. Three more physics questions -those concerning magnets, dry batteries and the elongation of rubber bands -are based on performance assessment questions in the Third International Mathematics and Science Study held by the IEA.