The validation of a computer-based food record for older adults: the Novel Assessment of Nutrition and Ageing (NANA) method

Dietary assessment in older adults can be challenging. The Novel Assessment of Nutrition and Ageing (NANA) method is a touch-screen computer-based food record that enables older adults to record their dietary intakes. The objective of the present study was to assess the relative validity of the NANA method for dietary assessment in older adults. For this purpose, three studies were conducted in which a total of ninety-four older adults (aged 65–89 years) used the NANA method of dietary assessment. On a separate occasion, participants completed a 4 d estimated food diary. Blood and 24 h urine samples were also collected from seventy-six of the volunteers for the analysis of biomarkers of nutrient intake. The results from all the three studies were combined, and nutrient intake data collected using the NANA method were compared against the 4 d estimated food diary and biomarkers of nutrient intake. Bland–Altman analysis showed a reasonable agreement between the dietary assessment methods for energy and macronutrient intake; however, there were small, but significant, differences for energy and protein intake, reflecting the tendency for the NANA method to record marginally lower energy intakes. Significant positive correlations were observed between urinary urea and dietary protein intake using both the NANA and the 4 d estimated food diary methods, and between plasma ascorbic acid and dietary vitamin C intake using the NANA method. The results demonstrate the feasibility of computer-based dietary assessment in older adults, and suggest that the NANA method is comparable to the 4 d estimated food diary, and could be used as an alternative to the food diary for the short-term assessment of an individual’s dietary intake.

Dispositional and maturational development through a competency based training intervention : getting to the heart of the matter

Presents a formative perspective on vocational learning that proposes that vocational competence is dependent upon dispositional development, which in turn results in moves towards maturation. Further, that dispositional and maturational outcomes occur as a result of a lifetime goal-setting intervention employed prior to training Reports qualitative and quantitative research with unemployed adults engaging in vocational education that resulted in four findings. Firstly, that while Training Packages describe assessable outcomes in competency-referenced terms, trainees describe learning outcomes in non-competency referenced terms. Secondly, that vocational trainees describe their learning in terms of dispositional outcomes, that is, in terms of values, interests and attitudes. Thirdly, that dispositions can be categorised in terms of maturational concepts. Fourthly, in support of incremental theory, that trainees made moves towards maturation as a result of a lifetime goal-setting intervention employed prior to training.

Dispositional and maturational development through competency-based training

Presents a perspective on vocational learning that proposes that vocational competence is dependent upon dispositional development, which in turn, results in moves towards maturation. Reports research with unemployed adults engaging in vocational training and resulting in four findings. First, while training packages describe assessable outcomes in competency-referenced terms, trainees describe learning outcomes in non-competency referenced terms. Second, vocational trainees describe their learning in terms of dispositional outcomes; that is, in terms of values, interests and attitudes. Third, dispositions can be categorised in terms of maturational concepts. Fourth, trainees made moves towards maturation as a result of CBT/NEIS training over the six-week period of the course. The findings have important ramifications for all future VET/CBT trainees since it is the researcher's formative theory that maturation is a subset of competence in every vocational skill domain.

The origins of competency-based training

This article attempts to trace the origins of competency-based training (CBT), the theory of vocational education that underpins the National Training Framework in Australia. A distinction is made between societal and theoretical origins. This paper argues that CBT has its societal origins in the United States of America during the 1950s, 60s and 70s. Public debate and government initiatives centred on the widely held view that there was a problem with the quality of education in the United States. One of the responses to this crisis was the Performance-Based Teacher Education movement which synthesised the theory of education that became CBT.The theoretical origins of CBT derive principally from behaviourism and systems theory - two broad theoretical orientations that influenced educational debate in the United States during the fomative period of CBT. Most of the component parts of CBT were contributed by specialists with a background in one or both of these theoretical orientations.

Systematic evaluation of a virtual environment-based training systems

This paper explores the application of three constructs that deemed to be essential to quantify virtual environments (VE) efficacy: cognitive, skill-based, and affective learning outcomes. The authors discuss the implementation of these constructs in a user-centered evaluation of a VE training system. By transforming both the conceptual and operational cohorts for training evaluation the authors illustrate the benefits of the development of a Multi-dimensional User-centered Systematic Training Evaluation (MUSTe) method for quantifying VEs efficacy. Importantly, MUSTe acknowledges the importance of combining holistic and analytical approaches in conducting systematic user-based evaluation. Furthermore, it also emphasizes that quantifying VEs efficacy must reflect the perception and preferences of the users rather than the imposition of efficacy on single measures of task outcome. An empirical study that applied MUSTe evaluation method in quantifying a VE training system efficacy provided valuable evidence of the theoretical construct and content validity of the method.

Learning to manage : transformative outcomes of competency-based training

Transformative learning theory is a dominant approach to understanding adult learning. The theory addresses the way our perspectives on the world, others and ourselves can be challenged and transformed in our ongoing efforts to make sense of the world. It is a conception of learning that does not focus on the measurable acquisition of knowledge and skills, but looks rather to the dynamics of self-questioning and upheaval as the key to adult learning. In this article, transformative learning theory is used as a lens for studying learning in a competency-based, entry-level management course. Instead of asking which knowledge and skills were developed and how effectively, the research enquired into deeper changes wrought by the learning experiences. The research found that for some learners the course contributed to significant discontent as they discovered that management practices they took to represent the norm fell dramatically short of the model promoted in the training.

The "strugglers" in selected computer based mathematics classrooms

In this paper, the experiences of lower achieving mathematics students in two secondary mathematics classrooms in which computers were regularly used are described. A year 8 and a year 9 mathematics class from one secondary school participated in the ethnographic study. The results show that in these two classrooms the learning relationships and power relationships did not, in general, support the learning and engagement of lower achievers in mathematics. Research into computer based teaching methods that engage low achieving students in computer based mathematics is needed.

Girls back off mathematics again : the views and experiences of girls in computer based mathematics

The views and experiences of girls in two co-educational mathematics classrooms in which computers were regularly used were researched. Data were collected by observation and videotaping of lessons, questionnaire, and interviews of students and the teachers. In this paper case studies of six girls are presented. Their ‘stories’ reveal a diversity of experiences and views and multiple gender identities. High achieving girls persisted as “outsiders within,” other girls “backed off”, and exceptional girls challenged gender stereotypes. Implications for social justice in mathematics in the age of the super highway are discussed.

Student views of computer based-mathematics in the middle years : does gender make a difference?

How the use of computers in mathematics classrooms was viewed by students in two middle years mathematics classrooms was the focus of the research described in this paper. The primary data sources consisted of questionnaires, classroom observations supported by videotaping of mathematics lessons, and interviews with two girls and two boys from each class. Thus both qualitative and quantitative methods were used. Girls viewed the computer-based lessons less favourably than did boys. In general, the boys were likely to believe that computers contributed to their experiencing pleasure in these lessons, and to making mathematics more relevant to them. Girls were typically more concerned about whether computers facilitated learning and enabled success in mathematics. The attitudes of students to computer-based mathematics were related to their views of computers.