Frequent mastery testing with second-chance exams leads to enhanced student learning in undergraduate engineering

Laboratory studies have routinely demonstrated that testing often leads to greater learning and retention than repeated studying. In the classroom, this effect has been replicated with memory and application tasks. However, studies of classrooms involving mathematical problem solving are sparse and have had mixed results. This paper presents the results of a quasi-experimental study in an undergraduate science, technology, engineering, and mathematics course that investigated more frequent testing that incorporated aspects of mastery testing and second-chance testing. Students in the frequent testing cohort scored seven percentage points higher and earned twice the number of As and half the number of failing grades. The advantage of frequent second-chance mastery testing was found for both multiple-choice and free-response questions and remained after controlling for differences in student ability. Women and underrepresented minority students benefited from the altered testing environment to the same extent as the general population.     

Strengths use and deficit improvement: The relationship with engagement and fit with study course amongst first-year students

This study sought to test a model of students’ proactive behaviour to use their strengths and improve their deficits and how this relates with their self-reported perceptions of their fit with a study course and engagement. Participants were 692 first-year students from a higher education institution in South Africa (females=60.3%; blacks=71.3%; mean age=19.71; SD=1.93). They completed measures of strengths use, deficit improvement, perceptions of fit with a study course and engagement. Structural equation modelling was utilised to examine the relationship between students’ strengths use and deficit improvement, perceptions of fit with a study course and student engagement. In addition, the bootstrapping method was used to identify possible mediating effects of fit with a study course. The results indicated that only deficit improvement showed a significant relationship with engagement. Perceptions of fit with a study course mediated the relationship between students’ strengths use and deficit improvement.     

The development of organizational strategies in children: evidence from a microgenetic longitudinal study

The authors examined memory on a sort-recall task in children 8 to 12 years of age. Children were first classified as either strategic or nonstrategic on a sort-recall pretest and then participated in an 11-week microgenetic study involving nine sessions. Strategy use was assessed on each trial. Consistent with past longitudinal research, changes from nonstrategic to strategic behavior occurred suddenly rather than gradually. Once children began using organizational strategies, their recall performance improved immediately. Deliberate strategy use was clearly reflected by sorting behavior during encoding but not in clustering during recall. Conclusions about whether there are children with utilization deficiencies are thus affected by how the concept is defined and whether sorting or clustering is taken as the indicator of spontaneous strategy use.     

特质焦虑初中生使用减弱调节策略的效果:一项ERP研究

采用情绪反应性-调节图片任务,考察特质焦虑青少年在下调负性情绪反应时的神经生理变化。结果发现,从行为学数据上看,两组被试都能达到下调目标,但低特质焦虑组的调节能力较强。从脑电数据上看,在刺激呈现之后300-600ms,高特质焦虑被试在负性情绪减弱调节效应方面显著小于低特质焦虑被试。在600-1000ms,高特质焦虑被试产生的LPP显著大于低特质焦虑被试。在1000ms以后,两组被试不存在显著差异。这就表明,我国高特质焦虑青少年对情绪反应有意调节能力总体较好,但较低特质焦虑青少年而言可能存在一定滞后性。     

汉语口语词汇产生的音韵编码单元：内隐启动范式的ERP研究

本研究中选择英语水平低的汉语母语者,排除作为二语的英语音韵编码单元(音素)可能对汉语口语词汇产生过程的影响后,运用事件相关电位技术,考察了汉语口语产生过程中音节和音素效应的时间进程。实验采用内隐启动范式,要求被试看到提示词之后说出对应的目标词。事件相关电位分析结果发现,音节效应出现在线索词呈现后的100～400 ms之间,音素效应出现在500～600 ms之间,波形表现为相关条件比无关条件的波形更正。这表明在词汇选择之后的音韵编码阶段讲话者首先提取的单元是音节,而音素效应出现的时间窗口可能是音韵编码阶段后期或者是语音编码阶段,结果验证了合适编码单元假说的观点。