Conditional Standard Errors of Measurement for Scale Scores

Standard errors of measurement of scale scores by score level (conditional standard errors of measurement) can be valuable to users of test results. In addition, the Standards for Educational and Psychological Testing (AERA, APA, & NCME, 1985) recommends that conditional standard errors be reported by test developers. Although a variety of procedures are available for estimating conditional standard errors of measurement for raw scores, few procedures exist for estimating conditional standard errors of measurement for scale scores from a single test administration. In this article, a procedure is described for estimating the reliability and conditional standard errors of measurement of scale scores. This method is illustrated using a strong true score model. Practical applications of this methodology are given. These applications include a procedure for constructing score scales that equalize standard errors of measurement along the score scale. Also included are examples of the effects of various nonlinear raw-to-scale score transformations on scale score reliability and conditional standard errors of measurement. These illustrations examine the effects on scale score reliability and conditional standard errors of measurement of (a) the different types of raw-to-scale score transformations (e.g., normalizing scores), (b) the number of scale score points used, and (c) the transformation used to equate alternate forms of a test. All the illustrations use data from the ACT Assessment testing program.     

The impact of engineering curriculum design principles on elementary students’ engineering and science learning

The Framework for K-12 Science Education and the Next Generation Science Standards propose that students learn core ideas and practices related to engineering as well as science. To do so, students will need high-quality curricular materials designed to meet these goals. We report an efficacy study of an elementary engineering curriculum, Engineering is Elementary (EiE) that includes a set of hypothesized critical components designed to encourage student engagement in practices, connect engineering and science learning, and reach diverse students. To measure the impact of the curriculum, we conducted a cluster randomized controlled trial in 604 classrooms in 152 schools in three states. Schools were randomly assigned to either the treatment curriculum or to a comparison curriculum that addressed the same learning goals but did not include several critical components. Results show that students who used the treatment curriculum (EiE) regardless of demographic characteristics outperformed students in the comparison group on outcome measures of both engineering and science content learning. The results show that curriculum design affects student-learning outcomes.     

High Versus Low Theoretical Fidelity Pedometer Intervention Using Social-Cognitive Theory on Steps and Self-Efficacy

Purpose: This study was designed to compare a low versus high theoretical fidelity pedometer intervention applying social-cognitive theory on step counts and self-efficacy. Method: Fifty-six public university employees participated in a 10-week randomized controlled trial with 2 conditions that varied in theoretical fidelity. Participants in the high theoretical fidelity condition wore a pedometer and participated in a weekly group walk followed by a meeting to discuss cognitive-behavioral strategies targeting self-efficacy. Participants in the low theoretical fidelity condition met for a group walk and also used a pedometer as a motivational tool and to monitor steps. Step counts were assessed throughout the 10-week intervention and after a no-treatment follow-up (20 weeks and 30 weeks). Self-efficacy was measured preintervention and postintervention. Results: Participants in the high theoretical fidelity condition increased daily steps by 2,283 from preintervention to postintervention, whereas participants in the low fidelity condition demonstrated minimal change during the same time period (p = .002). Individuals attending at least 80% of the sessions in the high theoretical fidelity condition showed an increase of 3,217 daily steps (d = 1.03), whereas low attenders increased by 925 (d = 0.40). Attendance had minimal impact in the low theoretical fidelity condition. Follow-up data revealed that step counts were at least somewhat maintained. For self-efficacy, participants in the high, compared with those in the low, theoretical fidelity condition showed greater improvements. Conclusion: Findings highlight the importance of basing activity promotion efforts on theory. The high theoretical fidelity intervention that included cognitive-behavioral strategies targeting self-efficacy was more effective than the low theoretical fidelity intervention, especially for those with high attendance.     

Women,Access and Progression: An examination of women's reasons for not continuing in higher education following the completion of the Certificate in Women's Studies

This study is an exploration of the reasons why women who had successfully completed an access course did not progress on to higher education. Following a review of the relevant literature on women as returners to education a number of main themes are identified and discussed. The study is based on in-depth interviews with women who did not continue on to higher education following the successful completion of the Certificate in Women's Studies at the University of Ulster. This research highlights the difficulties faced by women who want to continue with their studies. From the interviews three main obstacles to progressing further with higher education emerged; caring responsibilities, financial constraints and lack of career advice. It is argued that women as mature students face particular difficulties due to their role and position in society. Also the women themselves have been conditioned into putting their own needs after the needs of their families, and their personal development is often not afforded a high priority. Finally it is suggested that government's commitment to widening access to higher education is simply rhetoric if it does not take account of the broader inequalities faced by women. Policies to improve access appear to be somewhat at odds with the removal of the financial support necessary for study at higher education.     

Teaching gender studies via open and distance learning in South Africa

The University of South Africa (UNISA) has recently redesigned its honors degree in Gender Studies. The course design team members have been mindful of three key factors while redesigning this degree. First, we are aligning our course design with the demands of open and distance learning (ODL) and UNISA’s institutional move to online delivery of all teaching materials. Second, we are guided by the theoretical principles of feminist pedagogy. Third, we are committed to producing graduates who can take on the challenge of being gender change agents in a country with an escalating rate of gender-based violence. This article charts the development of the Gender Studies curricular initiative at UNISA with reference to the pedagogical insights provided by feminist scholarship on teaching, learning, and technology. We hope that our experience will provide insight into the parameters and process of creating an effective program in Gender Studies within an ODL context.     

Participatory research in support of quality public education in New Orleans

In 2007, two years after Hurricane Katrina, several education and child advocacy groups began discussing the depleted conditions of the New Orleans public school district. These groups came together to discuss how to create a sustainable education reform movement post Katrina. New Orleans-based community groups and outside university researchers joined together to implement a multi-year participatory action research project to engage historically marginalized, black communities in a dialog about quality public education. We found that, in order to create a collective vision for what quality public education looks like for black children, the New Orleans community needs to resolve perceived challenges with inequitable access to quality public schools, with who has a say in governing these schools, with inconsistent quality of teachers, with inequitable distribution of resources, and with strategies for serving challenging students. The results of this pilot participatory action research project led to a sustained community engagement campaign addressing these issues.     

Functional hamstrings: quadriceps ratios in elite women's soccer players

Abstract

We compared starters and non-starters for various isokinetic strength variables in elite women’s soccer players. A convenience sample of 10 starters (mean ± s; age = 20 ± 2 years; height = 170 ± 4 cm; body mass = 65 ± 5 kg) and 7 non-starters (age = 20 ± 1 years; height = 164 ± 3 cm; body mass = 63 ± 4 kg) performed maximal voluntary muscle actions of the leg extensors (concentric) and flexors (eccentric) on an isokinetic dynamometer in order to measure concentric peak torque for the leg extensors, eccentric peak torque for the leg flexors, and the functional hamstrings:quadriceps (H:Q) ratio at 1.047 rad · s^-1 and 4.189 rad · s^-1 concentric peak torque for the leg extensors was not different between starters and non-starters. However, it was greater at 1.047 rad · s^-1 than at 4.189 rad · s^-1 in both groups. Eccentric peak torque for the leg flexors was greater for the starters versus non-starters at 4.189 rad · s^-1. Eccentric strength of the leg flexors at fast movement velocities may be used as an effective physiological profile and may discriminate between playing status in elite women’s soccer players.