A critical evaluation and comparison of two formative measures of system quality using criterion variables

Evaluating the validity of formative variables has presented ongoing challenges for researchers. In this paper we use global criterion measures to compare and critically evaluate two alternative formative measures of System Quality. One model is based on the ISO-9126 software quality standard, and the other is based on a leading information systems research model. We find that despite both models having a strong provenance, many of the items appear to be non-significant in our study. We examine the implications of this by evaluating the quality of the criterion variables we used, and the performance of PLS when evaluating formative models with a large number of items. We find that our respondents had difficulty distinguishing between global criterion variables measuring different aspects of overall System Quality. Also, because formative indicators “compete with one another” in PLS, it may be difficult to develop a set of measures which are all significant for a complex formative construct with a broad scope and a large number of items. Overall, we suggest that there is cautious evidence that both sets of measures are valid and largely equivalent, although questions still remain about the measures, the use of criterion variables, and the use of PLS for this type of model evaluation.

Speaking of gender: teachers' metaphorical constructs of male and female students

This article explores the images and metaphors that teachers use when speaking of their relations with students and examines how these images work to call into play particular constructs of gender relations. Of specific interest is the way teachers use binaries of open/closed, in control/out of control and maturity/immaturity to make sense of feminine and masculine conduct respectively. It is argued that such binary differentiations work not only as descriptors of `truths' concerning student-teacher relations, but also as means of constituting and normalizing particular forms of gender  relations. Implications of such metaphorical constructions for gender reform within schools are considered.

Revisiting the impact of formative assessment opportunities in student learning

This project developed as a result of some inconclusive data from an investigation of whether a relationship existed between the use of formative assessment opportunities and performance, as measured by final grade. We were expecting to show our colleagues and students that use of formative assessment resources had the potential to improve performance of first year students. This first study, undertaken in semester 1 2002, indicated that there was no apparent relationship between the two, even though the students reported how useful they found the formative assessment resources. This led us to ask if there was a transition effect such that students were not yet working in an independent way and making full use of the resources, and/or whether in order to see an effect we needed to persuade non-users of the resources to become users, before investigating if use can be correlated with improvement in performance. With the 2002-3 NextEd ASCILITE Research Grant we set out to repeat our project and to look at use and usefulness of resources in both first and second semester, to encourage non-users to become users and to investigate the relationship between use and performance. Now our story has a different ending.

Revisiting associations between student performance outcomes and formative assessment opportunities: is there any impact on student learning?

This project developed as a result of some inconclusive data from an investigation of whether a relationship existed between the use of formative assessment opportunities and performance, as measured by final grade. We were expecting to show our colleagues and students that use of formative assessment resources had the potential to improve performance. This first study, done in semester 1 2002, indicated that there was no apparent relationship even though the students reported how useful they found the resources. This led us to ask if there was a transition effect
such that students were not yet working in an independent way and making full use of the resources, and/or whether in order to see an effect we needed to persuade non-users of the resources to become users before investigating if use can be correlated with improvement in performance. With the 2002-3 NextEd ASCILITE Research Grant we set out to repeat our project and to look at use and usefulness of resources in both first and second semester, to encourage non-users to become users and to investigate use with performance. Now our story has a different ending.

Should partial least squares be used for analysing psychological constructs?

This paper critically examines an analytical tool - partial least squares regression, or P LS - that is increasingly being used in the academic business literature to validate measures of psychological constructs, and to test hypotheses based on these. The paper provides a contextual and historical review of the resurgence of P LS, and explores several of the claims made by its developers and supporters when it was first promoted in the 1980s, and, more recently, when it reappeared in the information systems literature. Many claims appear plausible but rest on non-mainstream uses of terms and concepts taken from the psychometric field. The paper also canvasses why P LS is a poor analytical tool for research that involves psychological constructs.

Not the "other" mother : how language constructs lesbian co-parenting relationships

This paper presents findings from recent Australian qualitative research with lesbian co-parents where study participants' fluid narrative identities are  deconstructed in order to better understand how language constructs relationships within private and public domains. Language used to define, describe and give meaning to roles and relationships of lesbian co-parents within social and kinship networks and wider community is explored. Through claiming language and telling their stories lesbian co-parents give meaning to their lives; affirm their identity; and present their relationships as visible and valid.

Using progression points for diagnostic (formative) assessment : chance

Find every Chance-related Progression Point, in Level-order, from Prep to Year 10. Translate each Progression Point into a pencil-and-paper task. This makes a developmentally or progressively graded worksheet-like ''diagnostic profile' for assessing knowledge of and skills with Chance. It is diagnostic because it starts with easy, early questions, and progressively gets harder and harder as the concepts and skills in the Chance curriculum develop. Presenting this diagnostic profile to students at the beginning of a unit of work on Chance gives invaluable formative assessment information to guide your teaching. Using the same profile, or a parrallel version at the end of the unit provides before-and-after summative assessment of the students' learning during the unit.

Can social cognitive theory constructs explain socio-economic variations in adolescent eating behaviours? A mediation analysis

Adolescents of low socio-economic position (SEP) are less likely than those of higher SEP to consume diets in line with current dietary recommendations. The reasons for these SEP variations remain poorly understood. We investigated the mechanisms underlying socio-economic variations in adolescents’ eating behaviours using a theoretically derived explanatory model. Data were obtained from a community-based sample of 2529 adolescents aged 12–15 years, from 37 secondary schools in Victoria, Australia. Adolescents completed a web-based survey assessing their eating behaviours, self-efficacy for healthy eating, perceived importance of nutrition and health, social modelling and support and the availability of foods in the home. Parents provided details of maternal education level, which was used as an indicator of SEP. All social cognitive constructs assessed mediated socio-economic variations in at least one indicator of adolescents’ diet. Cognitive factors were the strongest mediator of socio-economic variations in fruit intakes, while for energy-dense snack foods and fast foods, availability of energy-dense snacks at home tended to be strong mediators. Social cognitive theory provides a useful framework for understanding socio-economic variations in adolescent's diet and might guide public health programmes and policies focusing on improving adolescent nutrition among those experiencing socio-economic disadvantage.

Critical appraisal of health literacy indices revealed variable underlying constructs, narrow content and psychometric weaknesses

Objective
Health literacy refers to an individual's ability to seek, understand, and use health information. A range of indices exist that purport to measure health literacy across individuals and populations. This study aimed to review the development and content of existing indices and to critically appraise their properties.

Study Design and Setting
Using standardized search terms, published generic health literacy indices (1990–2008) were identified. Using a methodological framework, each was evaluated for purpose, validity (face, content, construct), reliability, responsiveness, feasibility, and generalizability.

Results
Nineteen instruments were evaluated. Three measurement approaches were identified: direct testing of individual abilities, self-report of abilities, and population-based proxy measures. Composition of underlying constructs and content varied widely across instruments, and none appeared to fully measure a person's ability to seek, understand, and use health information. The content was focused primarily on reading comprehension and numeracy; scoring categories were poorly defined and may not be mutually exclusive, and few indices had been assessed for reliability.

Conclusion
Health literacy is not consistently measured, making it difficult to interpret and compare health literacy at individual and population levels. Empirical evidence demonstrating validity and reliability of existing indices is required, and more comprehensive health literacy instruments need to be developed.

Shifting constructs of global education : the role of travel in meeting new challenges for teachers

Globalisation is driving the impetus for change by teachers, and in classrooms, schools and education in countries across the world. This phenomenon has bought global education from the fringes to prominence in the curriculum. Although global education is a fixture in education discourse today, it has not always occupied such a position. This paper reviews global education from its early beginnings to the present in the United Kingdom, USA and Australia and reports on research that focuses on how teachers' travel experiences further their confidence to teach global education.
Approaches to global education have moved from primarily content approaches to include an emphasis on teachers as agents of implementation. With global education positioned centrally within schools and curriculum policy, teachers' knowledge and skills to implement global education are called into question. This paper reports on research that focuscs on how teachers' travel experiences further their confidence to
teach global education. The implications from this research suggest that teachers should emphasise their lived travel experience in global education.