Department of Biology, Emory University, Atlanta, GA 30322.
Department of Biology, Morehouse College, Atlanta, GA 30314.
CBE Life Sci Educ. 2021 Mar;20(1):ar8. doi: 10.1187/cbe.20-04-0076.
Science self-efficacy, a student's confidence in being able to perform scientific practices, interacts with science identity and outcomes expectations, leading to improved performance in science courses, persistence in science majors, and ultimately, the pursuit of advanced training in the sciences. Inquiry-based laboratory courses have been shown to improve undergraduate student self-efficacy, but the mechanisms involved and specific components of instructional practices that lead to improved self-efficacy are not clear. In the current study, we determined whether student and faculty perceptions of laboratory instructional practices (scientific synthesis, science process skills, and instructor-directed teaching) were related to postsemester self-efficacy across 19 guided-inquiry laboratory courses from 11 different institutions. Self-efficacy related to science literacy increased significantly from the beginning of the semester to the end of the semester. Variation in individual student perceptions of instructional practices within a course were significantly related to differences in student self-efficacy at the end of the semester, but not average student perceptions or faculty perceptions of their own practices across courses. The importance of individual student perceptions suggests that faculty should engage with students during curricular development. Furthermore, faculty need to use noncontent talk to reinforce the science practices students are engaging in during inquiry-based laboratory courses.
科学自我效能感是指学生在进行科学实践方面的信心,它与科学身份和成果期望相互作用,从而提高科学课程的表现、在科学专业的坚持程度,最终追求科学领域的高级培训。基于探究的实验室课程已被证明可以提高本科生的自我效能感,但涉及的机制以及导致自我效能感提高的具体教学实践组成部分尚不清楚。在当前的研究中,我们确定了学生和教师对实验室教学实践(科学综合、科学过程技能和教师指导教学)的看法是否与 11 个不同机构的 19 个引导式探究实验室课程的学期后自我效能感相关。从学期开始到学期结束,与科学素养相关的自我效能感显著增加。课程中学生对教学实践的个人看法的差异与学生在学期末自我效能感的差异显著相关,但与平均学生的看法或教师对自身实践的看法在课程之间没有显著相关。个别学生看法的重要性表明,教师应该在课程开发过程中与学生接触。此外,教师需要使用非内容性的谈话来强化学生在基于探究的实验室课程中所从事的科学实践。