Differentials of a State Reading Assessment: Item Functioning, Distractor Functioning, and Omission Frequency for Disability Categories

Large data sets from a state reading assessment for third and fifth graders were analyzed to examine differential item functioning (DIF), differential distractor functioning (DDF), and differential omission frequency (DOF) between students with particular categories of disabilities (speech/language impairments, learning disabilities, and emotional behavior disorders) and students without disabilities. Multinomial logistic regression was employed to compare response characteristic curves (RCCs) of individual test items. Although no evidence for serious test bias was found for the state assessment examined in this study, the results indicated that students in different disability categories showed different patterns of DIF, DDF, and DOF, and that the use of RCCs helps clarify the implications of DIF and DDF.     

Central processing energetic factors mediate impaired motor control in ADHD combined subtype but not in ADHD inattentive subtype

Participants with attention-deficit/hyperactivity disorder (ADHD) are often impaired in visuomotor tasks. However, little is known about the contribution of modal impairment in motor function relative to central processing deficits or whether different processes underlie the impairment in ADHD combined (ADHD-C) versus ADHD inattentive (ADHD-I) subtype. The present study analyzes performance on the Visual Motor Integration Test relative to less effortful motor tests as well as on measures of energetics. Both ADHD groups showed evidence of impaired motor function on both visual-motor integration (VMI) and the less effortful motor tests. The ADHD-C group performed below the ADHD-I group on VMI, but their performance correlated highly with the measures of the energetic pools of arousal and effort. Different mechanisms may underlie impaired fine motor skills in ADHD. Central processing deficits contribute significantly to the deficit of ADHD-C but do not explain the motor impairment in ADHD-I.     

Participation in the ICT era: Implementation without humiliation, misconception and false consciousness

The national language of Tanzania is Kiswahili. However, Tanzania has two official languages: English, introduced in colonial times, and Kiswahili, the actual lingua franca spoken by 99 per cent of the population. Kiswahili websites and internet content are gradually increasing, and equipment is becoming more affordable. The research reported on here shows that especially academic staff with good knowledge in information and communication technology (ICT) are using Kiswahili more than others. This gives hope for the future. The language of instruction in Tanzania??s higher education is however English only, resulting in students having to attend lectures and produce their coursework in a language they are not proficient in. Investigating whether University of Dar es Salaam (UDSM) staff and students regard themselves as participants and contributors in a knowledge society, the author??s findings suggest two simultaneous processes: (1) There are still remnants from the colonial system in terms of education and language; (2) At the same time ICT-competent staff and students already do participate in the ICT era in Kiswahili and tend to use Kiswahili in their work and studies. A high number of respondents say they use Kiswahili in most of their ICT communication. There is reason to ask: is the notion of English being the only ICT language possibly decreasing? This article builds on fieldwork conducted at UDSM in 2006, 2008, 2010 and 2011, in connection with the research project ??ICT and Language in Tanzanian Higher Education??.     

Assessing the spatial accessibility and spatial equity of public libraries' physical locations

Spatial accessibility of libraries affects their usage. It is crucial to consider spatial accessibility's impacts on equity and inclusiveness of public libraries. A method is proposed to evaluate the equity of spatial accessibility to library resources and services across population groups. Spatial accessibility is measured in two ways: the closest-based and quantity-based measurements that respectively characterize the level of accessibility to the closest one and to diverse resources according to travel distance and travel time in road networks. Two approaches are applied for equity evaluation with socioeconomic and demographic indicators of census tracts, including the minority population, non-adults, and population in poverty. The method is applied to examine the physical locations of public libraries in four major cities of the U.S with diverse population composition. Results show spatial inequity for socially disadvantaged populations in the cities of Washington DC, Baltimore, and Chicago. Inequity is more prominent for non-adults and minority populations in DC and Baltimore. The analysis helps identify the potential inequity for subpopulations and guide the decision-making in library services to improve equity and inclusion.     

Risk factors for musculoskeletal injuries in elite junior tennis players: a systematic review

The objective was to systematically review the literature on risk factors and prevention programs for musculoskeletal injuries among tennis players. PubmedMedline, Embase, CINAHL, Cochrane, SportDiscus were searched up to February 2017. Experts in clinical and epidemiological medicine were contacted to obtain additional studies.

For risk factors, prospective cohort studies (n > 20) with a statistical analysis for injured and non-injured players were included and studies with a RCT design for prevention programs. Downs&Black checklist was assessed for risk of bias for risk factors. From a total of 4067 articles, five articles met our inclusion criteria for risk factors. No studies on effectiveness of prevention programs were identified. Quality of studies included varied from fair to excellent.

Best evidence synthesis revealed moderate evidence for previous injury regardless of body location in general and fewer years of tennis experience for the occurrence of upper extremity injuries. Moderate evidence was found for lower back injuries, a previous back injury, playing >6hours/week and low lateral flexion of the neck for risk factors. Limited evidence was found for male gender as a risk factor.

The risk factors identified can assist clinicians in developing prevention-strategies. Further studies should focus on risk factor evaluation in recreational adult tennis players.     

Is high soleus muscle activity during the stance phase of the running cycle a potential risk factor for the development of medial tibial stress syndrome? A prospective study

ABSTRACT

To assess the impact of lower-leg muscle activity during the stance phase of running on the development of medial tibial stress syndrome (MTSS), in 123 healthy participants (18.2 ± 0.8 years), dynamic and static foot posture, and soleus and tibialis anterior muscle activity during the stance phase of running were measured before a 17-week track- and field-course. After the course, MTSS was identified in 20.5% of the participants. MTSS participants had a higher body mass (ES = 1.13), body mass index (BMI) (ES = 1.31), lower previous vigorous physical activity level (ES = 0.84) and VO_2max (ES = 0.61), greater dynamic foot pronation (ES = 0.66), higher soleus peak EMG amplitude during the absorption (ES = 0.60) and propulsion phases (ES = 0.56) of running, and a history of MTSS (OR = 6.38) (p < 0.05). Stepwise logistic regression showed BMI, dynamic foot index, soleus peak EMG amplitude during propulsion, MTSS history and previous vigorous physical activity were predictors of MTSS. The model predicted 96.6% of the healthy participants and 56.5% of the MTSS participants and correctly classified 88.4% of overall cases. Coaches and sports-medicine professionals that screen for injury risk should consider adopting a comprehensive evaluation that includes these parameters.     

Implementing Second Step: Balancing Fidelity and Program Adaptation

We explored Norwegian primary school teachers' fidelity in their use of Second Step, a social competence intervention program. The investigation examined teachers' (N = 17) use of the program and their perceptions of fidelity of implementation through semistructured interviews. The findings suggest that, to a large extent, teachers adapt the program to their own needs. The rationale for adapting the program is relatedto the needs of pupils, the features of the program, and teachers' individual beliefs and experiences. The extent of implementation at school level appears to influence teachers' fidelity, as teachers who reported implementing the program with greater fidelity were mostly in schools with a formalized approach.     

My face is more than me. A Nordic researcher in the South: An autoethnographic retrospective perspective

A white person from the Global North, referred to in Kiswahili as a mzungu, can hardly conduct research anonymously, observe unnoticed or merge with staff and students in the context of African university classrooms. This article builds on the author’s six years of research at the University of Dar es Salaam (UDSM) in Tanzania, examining staff and students’ everyday practices in terms of how they are characterised by linguistic constraints. Using an autoethnographic, self-reflective and retrospective approach, the author discloses some of her experience during fieldwork as a researcher on the university campus. Through this form of qualitative research, she connects her personal experience to the discourse on the language of instruction policy and practices in higher education in Tanzania. The aim of her self-reflection is to understand the wider meanings of how cultural, political and social language practices unfold in staff and students’ daily lives. Using the concepts of insider and outsider, preconception, and theory-ladenness of observation, the author aims to depict the challenges and limits of being a researcher in a totally unfamiliar context. During her fieldwork, using a mixed-methods approach of questionnaires, interviews and participating observation, the author also kept a notebook with her. She made field notes of self-observation, reflecting on her reactions to what she encountered in the research process. While making these notes was not deliberately a part of the data collection, it was an important way of talking to herself. In retrospect, a few years after submitting her doctoral thesis, these notes have become more important to her. The purpose of this article is twofold: on the one hand, the author reveals some of her own experience as a researcher in unaccustomed surroundings, on the other hand, she uses her personal experience to describe, question and shed light on the discrepancies caused by language practices in Tanzanian higher education.