Interpreting histograms. As easy as it seems?

Histograms are widely used, but recent studies have shown that they are not as easy to interpret as it might seem. In this article, we report on three studies on the interpretation of histograms in which we investigated, namely, (1) whether the misinterpretation by university students can be considered to be the result of heuristic reasoning, (2) whether we could influence performance by stimulating or hindering the analytic processing of histograms, and (3) whether experts still show signs of this heuristic misinterpretation. We found that both university students and experts show signs of incorrect heuristic reasoning when comparing the mean of two data sets presented by histograms. Stimulating or hindering analytic processing did not affect performance. These indications of heuristic reasoning and the impossibility to affect this analytic processing suggest that the incorrect heuristic misinterpretation of histograms is very persistent. Implications for theory and methodology, scientific and educational practice are discussed.     

Is the cure worse than the disease? A longitudinal study on the effect of grade retention in secondary education on achievement and academic self-concept

Holding students back when they do not meet a specific attainment level is common practice in a lot of countries. However, this practice is not without controversy and recent studies point at the negative effects of grade retention, especially in the long-term. The majority of these studies focused on grade retention in primary education. In our study, we focused on the effect of grade retention in Grade 8 on language achievement and academic self-concept. We matched students who were and were not retained based on their propensity to be retained and compared both groups using a growth curve analysis. The basic treatment “grade retention vs. promotion” was extended with the certificate these students received at the end of Grade 8. With this growth curve analysis, we were able to draw conclusions on the effect in the short-term, as well as in the long-term. In the short-term (i.e. the year of retention), it seems that grade retention had no negative effect on language achievement in the short-term, and even a positive effect on academic self-concept in the year of retention. The effects became more negative when we considered effects in the long-term. Especially for language achievement, we found a strong decline in the achievement of grade retainees. We found no negative effect of grade retention on academic self-concept. We can conclude that grade retention has a negative effect on the achievement of retained students in the long run, but has no negative effect on academic self-concept. When we take into account the certificate they received, it seems that following the teacher’s advice to change track is a better decision than repeating the grade in the same track.     

First year effects of induction arrangements on beginning teachers’ psychological processes

This study examined the (1) effects of a supportive program (i.e., induction arrangement) on beginning teachers’ (BTs’) psychological processes after a period of 1 year and (2) psychological paths of influence of the arrangement. Participants (56 Dutch secondary schools with 143 BTs) were randomly allocated to two conditions. Experimental schools provided a carefully developed and implemented induction arrangement to their BTs. Control schools followed their regular (induction) arrangements. BTs perceived stress causes, self-efficacy, and job strain were measured with a pre-test post-test design. Condition effects were examined by means of independent sample t tests. The perception of the provided support was measured, and its psychological path of influence was investigated by conducting standard multiple regression analyses. BTs in the experimental condition indicated that they (1) received more support, (2) experienced fewer stress causes (i.e., lack of learning opportunities and lack of regulating possibilities), and (3) experienced more self-efficacy in the classroom at the end of the school year. Furthermore, fewer BTs left the experimental schools after 1 year. Reducing BTs’ workload and supporting their professional development are the most influential induction arrangement elements provided in this study. Providing carefully developed and implemented induction arrangements may soften the harshness of the context in which BTs operate, by decreasing their perceived stress causes and increasing their level of self-efficacy in the classroom. This, in turn, could positively affect BTs’ decision to stay in the teaching profession and might, therefore, add to a solution to the teacher shortage problem.     

Facilitating the learning process in design-based learning practices: an investigation of teachers’ actions in supervising students

Background: In research on design-based learning (DBL), inadequate attention is paid to the role the teacher plays in supervising students in gathering and applying knowledge to design artifacts, systems, and innovative solutions in higher education.

Purpose: In this study, we examine whether teacher actions we previously identified in the DBL literature as important in facilitating learning processes and student supervision are present in current DBL engineering practices.

Sample: The sample (N=16) consisted of teachers and supervisors in two engineering study programs at a university of technology: mechanical and electrical engineering. We selected randomly teachers from freshman and second-year bachelor DBL projects responsible for student supervision and assessment.

Design and method: Interviews with teachers, and interviews and observations of supervisors were used to examine how supervision and facilitation actions are applied according to the DBL framework.

Results: Major findings indicate that formulating questions is the most common practice seen in facilitating learning in open-ended engineering design environments. Furthermore, other DBL actions we expected to see based upon the literature were seldom observed in the coaching practices within these two programs.

Conclusions: Professionalization of teachers in supervising students need to include methods to scaffold learning by supporting students in reflecting and in providing formative feedback.     

Brief Report. Educated adults are still affected by intuitions about the effect of arithmetical operations: evidence from a reaction-time study

This study tested the hypothesis that intuitions about the effect of operations, e.g., “addition makes bigger” and “division makes smaller”, are still present in educated adults, even after years of instruction. To establish the intuitive character, we applied a reaction time methodology, grounded in dual process theories of reasoning. Educated adult participants were asked to judge the correctness of statements about the effect of operations. Their accuracy and reaction times were measured. For items where the correct answer was not in line with the assumed intuitions, more mistakes were observed; moreover, we found longer reaction times for correct responses, indicating that these intuitions interfere in participants’ reasoning on these tasks, even when they provide a correct response.     

Professional development for design-based learning in engineering education: a case study

Design-based learning (DBL) is an educational approach in which students gather and apply theoretical knowledge to solve design problems. In this study, we examined how critical DBL dimensions (project characteristics, design elements, the teacher's role, assessment, and social context) are applied by teachers in the redesign of DBL projects. We conducted an intervention for the professional development of the DBL teachers in the Mechanical Engineering and the Electrical Engineering departments. We used the Experiential Learning Cycle as an educational model for the professionalisation programme. The findings show that the programme encouraged teachers to apply the DBL theoretical framework. However, there are some limitations with regard to specific project characteristics. Further research into supporting teachers to develop open-ended and multidisciplinary activities in the projects that support learning is recommended.     

Rebels With a Cause? Adolescent Defiance From the Perspective of Reactance Theory and Self‐Determination Theory

The present investigation focused on adolescents' defiance against parents by drawing upon psychological reactance theory (Brehm, 1966) and self‐determination theory (Ryan & Deci, 2000). Psychological reactance would be elicited when freedom is taken away, thereby motivating individuals to engage in oppositional behavior. Throughout four studies (total N = 1,472, age ranging between 12 and 21 years), it was examined whether a controlling parenting style related to adolescents' experiences of autonomy need frustration (i.e., pressure) and reactance. Reactance, in turn, would relate to more externalizing and internalizing problems. Support was obtained for these associations in community and clinical samples, making use of different informants, and controlling for responsiveness and rule setting. A vignette‐based study provided further support. The discussion highlights theoretical and clinical implications.     

Youth,apprenticeship, and petty production in Lusaka

The article analyses the nature of apprenticeship in the petty sector of Lusaka and its value partly for producers in the small workshops partly for out-of-school youths, who are currently its main clientele. The poorer youth especially attempt to utilize this training as an alternative route towards more rewarding work-positions in the economy. It is argued, however, that unlike in the early 1970s, youths even with apprenticeship training have great difficulties in entering the more profitable levels of petty production and that apprenticeship itself has turned into a mechanism for the recruitment of semi wage-labour, enabling workshops to survive under adverse economic conditions.     

In search of factors in deaf and hearing children's reading comprehension

The present study examined whether specific item characteristics, such as mode of acquisition (MoA) of word meanings, make reading comprehension tests particularly difficult for deaf children. Reading comprehension data on nearly 13,000 hearing 7-to-12-year-olds and 253 deaf 7-to-20-year-olds were analyzed, divided across test levels from second to sixth grade (not necessarily corresponding to chronological age). Factor analyses across item scores suggested that, of the determinants studied, MoA--referring to the type of information (perceptual, linguistic, or both) used in word meaning acquisition--was the only factor that contributed significantly to deaf and hearing children's reading comprehension. For hearing children, MoA influenced item scores at the third- and fourth-grade levels. For the deaf children, MoA influenced item scores through the sixth-grade level.