Vulnerability in Research: A Developmental Perspective on Research Risk

Assessing potential risks to children who participate in developmental research is a challenging task because children are a heterogeneous population, varying in developmental competencies and in background characteristics. This essay offers a developmental perspective on research risk, emphasizing that children's vulnerability to research risk changes in complex ways: some risks decrease with increasing age, some increase as the child matures, others change in a curvilinear fashion, while some remain essentially stable with development. Because vulnerability in research does not simply decline linearly with age, assessments of research risk must entail multidimensional considerations that vary over developmental time. In a similar manner, individual characteristics of children at any age (e.g., maltreatment, at-risk status, etc.) may also heighten their vulnerability to certain risks which require special consideration by researchers. Finally, this discussion of developmental vulnerability and the principles underlying research ethics suggests that in addition to the conventional risk/benefit analysis, researchers are in an optimal position to establish and maintain standards of decent treatment of children in research that safeguard their rights as research participants. Suggestions for fostering this process in the research community are outlined.     

Models of Decisionmaking Processes for Multiple-Choice Test Items: An Analysis of Spatial Ability

Latent class models of decisionmaking processes related to multiple-choice test items are extremely important and useful in mental test theory. However, building realistic models or studying the robustness of existing models is very difficult. One problem is that there are a limited number of empirical studies that address this issue. The purpose of this paper is to describe and illustrate how latent class models, in conjunction with the answer-until-correct format, can be used to examine the strategies used by examinees for a specific type of task. In particular, suppose an examinee responds to a multiple-choice test item designed to measure spatial ability, and the examinee gets the item wrong. This paper empirically investigates various latent class models of the strategies that might be used to arrive at an incorrect response. The simplest model is a random guessing model, but the results reported here strongly suggest that this model is unsatisfactory. Models for the second attempt of an item, under an answer-until-correct scoring procedure, are proposed and found to give a good fit to data in most situations. Some results on strategies used to arrive at the first choice are also discussed     

ALBINISM IN BOTSWANA: Albinism in Botswana junior secondary schools – a double case study

Pupils with albinism potentially face a number of challenges in accessing quality education in schools in Botswana. Physical issues such as poor eyesight related to the condition and the problems of sensitive skin in such a dry and warm climate are both contributing factors to making learning problematic for some pupils. This study by Gareth Dart of the University of Worcester, Tiroyaone Nkanotsang from a junior secondary school in Botswana, Ose Chizwe from the Government of Botswana and Lily Kowa from a junior secondary school in Botswana, considers the educational experience of two particular pupils with albinism in junior secondary schools in Botswana. Case studies were carried out by student teachers on teaching practice. Issues arising from the case studies of the two pupils were combined with the life story of a third student teacher who himself has albinism. The authors conclude by making some recommendations as to how the experience of pupils with albinism might be improved in the light of local conditions and principles of development.     

The effect of teacher‐led interventions on social and emotional behaviour in primary school children: a systematic review

The purpose of this article is to clarify the role of teacher training initiatives aimed at improving social, emotional and behavioural outcomes of primary school aged children through improved classroom management. Systematic searches were conducted using a range of electronic databases from inception up to September 2011. Included studies were controlled trials that described training provided to teachers in classroom management techniques designed to improve primary school children's behavioural and social outcomes. Study selection and appraisal of quality were carried out by two researchers and a narrative synthesis was carried out. A total of 14 studies were included involving 8 interventions. Results show that statistically significant effects are limited, with only 20 outcomes showing significant effects in the desired direction. Effect sizes ranged from g = ?0.17 (95%CI: ?0.32, ?0.02) to g = 1.88 (95%CI: 0.55, 3.21). Overall, the programmes indicate an improvement in some outcomes of interest. However, further research into the implementation and comparative effectiveness of such programmes is needed before implications for educational policy and practice can be established.     

Children’s mental representation when comparing fractions with common numerators

Researchers debate whether one represents the magnitude of a fraction according to its real numerical value or just the discrete numerosity of its numerator or denominator. The present study examined three effects based on the notion that people possess a mental number line to explore how children represent fractions when they compare fractions with common numerators. Specifically, the effect of the spatial numerical association of response codes (SNARC), the distance effect and the size effect in representing fractions were examined in a sample of 72 sixth graders, who successfully solved the fraction comparison task with a real number (.2) or a fraction (1/5) as the reference. Results showed that in the fraction-reference group (1/5 as the reference), there was a significant reverse SNARC effect and a distance effect between the denominators of the target fractions and the reference fraction; in the real number-reference group, the three effects were also observed. These results revealed that both groups used the mental number line to represent fractions and did not represent their real numerical values but rather the discrete numerosities of denominators when comparing fractions with common numerators. It seems that the way people represent fractions may depend on their strategy choices.     

“You can't play marbles—you have a wooden hand”: Communication with the handicapped 1

The influence of being in a mainstreamed class on nonhandicapped children's abilities to communicate with the handicapped was investigated in this two‐year study. The results indicate that both nonhandicapped and handicapped children have difficulty communicating with handicapped peers. Being in a mainstreamed class has no impact on the nonhandicapped children. No differences were discovered between children studied at the conclusion of the first or second years of the mainstreaming program.     

Editorials

This article discusses historical and contemporary influences on changes in special education assessment, with emphasis on three persistent themes: accurate classification, fairness to minority students, and special education outcomes. Dunn's contributions to each of the themes are discussed, along with other influences such as legislation and litigation. Current dynamics leading to significant changes in special education assessment are discussed, particularly in the disability category of specific learning disabilities.