Adolescent Ethnic Identity in Social Context: A Commentary

Key findings from the various studies of this special section of Child Development are that ethnic identity is embedded in a positive proximal interpersonal context in adolescence and that the links between ethnic identity and the interpersonal context seem to become stronger from the beginning of early adolescence on. Remarkably, the (longitudinal) studies do not show that ethnic identity is a better predictor of developmental outcomes or that it can be better predicted in minority groups than in majority groups. I use one of the articles to demonstate that a longitudinal prediction model is different from a developmental sequence model. Finally, an extension of the present measures of ethnic identity is proposed. This extension would allow for a thorough investigation of the saliency of ethnic identity and its interplay with other identity domains during adolescent development.     

Unrealistic responses to realistic problems with missing information: what are important barriers?

Abstract

It is a well-documented finding that students tend to neglect their real-world knowledge when solving word problems, even when realistic assumptions are needed. Although studies have successfully shown the extent to which students tend to provide unrealistic responses, the question of where this tendency comes from has yet to be answered. We focused on two major steps needed to solve realistic word problems: noticing missing information and making realistic assumptions. We conducted two studies with fifth graders (Study 1, N?=?108; Study 2, N?=?60) in which we compared students’ (un-)realistic responses to problems that differed in how obvious the missing information was. Study 1 fostered only students’ ability to make assumptions. Study 2 fostered this ability plus the ability to notice missing information. The results indicate that, if the missing information is not obvious, students’ failure to notice it seems to be what prevents them from arriving at a realistic solution.     

School Chemistry vs. Chemistry in Research: An Exploratory Experiment

This report describes a study which explores, from the out-of-school student viewpoint, why students are not studying chemistry anymore. In a 2-day stay at a research institution three groups of graduating high school students from different schools, together with their chemistry teacher, were confronted hands-on with molecular modeling in industry and in university. Each of these volunteer students had agreed to write an essay on School Chemistry Vs. Chemistry in Research. These essays were evaluated together by the students, the teacher, and the researcher in a meeting at their school. The opinion of the students show that school chemistry does not convey today's chemistry in research and in industry. At the computer screen the students demonstrated their skill in performing molecular modeling experiments. Moreover, at the computer screen, chemistry was fun and easier to understand. Now we begin to see the solution: our students are also our teachers.     

The academic progress of foreign students: study achievement and study behaviour

In this study we investigated associations between studying in a foreign language and students' academic achievement and study behaviour. Data were gathered in the Netherlands, at the Delft University of Technology (DUT). The results show that the success rate of foreign students was about the same as that of the Dutch students, but that foreign students needed more time to pass the examination. Language proficiency played a major part in explaining differences in study achievement as did the presence or absence of a selection procedure in the student's country of origin. Furthermore, the results show that the study behaviour of foreign students was significantly different from the Dutch students: their average grades on examinations were lower, they made more attempts before passing an examination, they were more likely to postpone examinations and to follow a different order from the recommended one. Suggested measures to improve foreign students' study success include requiring higher levels of language proficiency and stricter selection of foreign students in the country of origin. It is suggested that a system of mentors which provides for intensive coaching of foreign students in their first year may prevent a slow start.     

Longitudinal effects of induction on teaching skills and attrition rates of beginning teachers

The teaching profession faces a shortage as well as a decline of teaching skills. A possible way to mitigate this is to implement evidence-based induction arrangements. Seventy-one schools with 338 beginning secondary education teachers were randomly allocated to an experimental or a control group. The experimental schools used induction arrangements; the authors measured the effects of these arrangements by using repeated lesson observations and by comparing the rates at which beginners in the control and experimental groups left the teaching profession. Three years later, 14% of the control group and 12% of the experimental group had left. Leaving the profession could be explained by a lack of certification and low initial teaching skill levels. The experimental group exhibited greater improvement in teaching skills compared to the control group. Workload reduction influenced the skill level negatively, and coaching and observing had a strong positive influence on the skill level in Year 3.     

Phonemic Analysis: effects of word properties

The relation between performance in phonemic segmentation and reading and writing ability is discussed. Not much is known about how segmentation is carried out and which word properties influence performance. Therefore, effects of word properties (length, CV structure, syllabic structure, meaning) were investigated in two experiments. Strong indications were obtained that an onset-rime distinction is relevant for the process of segmentation. The meaning of a word appears to have no influence. The decentration hypothesis can therefore be abandoned as an explanation for segmentation difficulties. Effects of length and syllabic boundary can be explained by the (disruptive) effect of consonant clusters, which are not only difficult to segment themselves, but also adversely affect the processing of segments earlier in the word. This leads to the conclusion that a simple, strictly serial model for segmentation cannot be adequate. The results furthermore suggest that an articulatory rather than a phonological code is the object of segmentation.     

Escape rooms as tools for climate change education: an exploration of initiatives

Abstract

In the last years we have observed a growing interest in the use of gamification approaches for climate change education. While most practices are related to digital gaming, there is a new trend which is still academically unexplored: escape rooms. The main objective of this paper is to serve as an initial exploratory study in this field by identifying and analysing climate change-related escape rooms. For that purpose we carried out a web search and a qualitative content analysis. A total of 17 initiatives are described and compared, unravelling their main audience, country of origin, topics, scenarios and objectives covered. The paper also highlights what escape rooms can offer to climate change education: experiential and immersive learning, problem solving and critical thinking skills, and a sense of collaboration and urgency.     

Simultaneous Assembly of Multiple Test Forms

An algorithm for the assembly of multiple test forms is proposed in which the multiple-form problem is reduced to a series of computationally less intensive two-form problems. At each step, one form is assembled to its true specifications; the other form is a dummy assembled only to maintain a balance between the quality of the current form and the remaining forms. It is shown how the method can be implemented using the technique of O-1 linear programming. Two empirical examples using a former item pool from the LSAT are given—one in which a set of parallel forms is assembled and another in which the targets for the information functions of the forms are shifted systematically.     

Word stress production in three‐year‐old children at risk of dyslexia

We investigated Dutch word stress acquisition in 3‐year‐old children at risk of dyslexia (children with at least one parent or older sibling with reading difficulties) and normally developing children, in order to shed light on language acquisition delays in children at risk of dyslexia, as well as to investigate further phonological deficits in dyslexia. The children had to repeat non‐words with stress patterns varying in regularity. Both the at‐risk and control children performed better on imitation of regular stress targets and worse on irregular and prohibited stress patterns. However, the at‐risk children showed more difficulty imitating irregular and prohibited patterns, and had lower percentages phonemes correct than the control group. The results can be interpreted as a delay in word stress acquisition in the at‐risk group. The findings thus point towards a phonological deficit early in language development.     

The Misspecification of the Covariance Structures in Multilevel Models for Single-Case Data: A Monte Carlo Simulation Study

The impact of misspecifying covariance matrices at the second and third levels of the three-level model is evaluated. Results indicate that ignoring existing covariance has no effect on the treatment effect estimate. In addition, the between-case variance estimates are unbiased when covariance is either modeled or ignored. If the research interest lies in the between-study variance estimate, including at least 30 studies is warranted. Modeling covariance does not result in less biased between-study variance estimates as the between-study covariance estimate is biased. When the research interest lies in the between-case covariance, the model including covariance results in unbiased between-case variance estimates. The three-level model appears to be less appropriate for estimating between-study variance if fewer than 30 studies are included.