LibQUAL Revisited: Further Analysis of Qualitative and Quantitative Survey Results at the University of Mississippi

This paper updates an earlier 2010 longitudinal study of LibQUAL qualitative and quantitative data from the University of Mississippi libraries with an additional year of LibQUAL data, collated with other library-collected data such as gate-count numbers. In doing so, it identifies several results that are not satisfactorily analyzed by LibQUAL, and it concludes that a more specialized local survey may be helpful to supplement or supplant LibQUAL.     

Decision boundaries and receiver operating characteristic curves: new methods for determining accelerometer cutpoints

We propose and evaluate the utility of an alternative method (decision boundaries) for establishing physical activity intensity-related accelerometer cutpoints. Accelerometer data collected from seventy-six 11- to 14-year-old boys during controlled bouts of moderate- and vigorous-intensity field physical activities were assessed. Mean values and standard deviations for moderate- and vigorous-intensity activities were obtained and normal equivalents generated. The decision boundary (the point of intersection of overlapping distributions) was used to create a lower-bound vigorous-intensity cutpoint. Receiver operating characteristic (ROC) curves compared the sensitivity and specificity of the new cutpoint and mean values with the actual activity. There was a 96.5% probability that participants performing vigorous-intensity physical activity were accurately classified when using the decision boundary of 6700 counts per minute, in contrast to the 50% accurately classified when the mean value was used. Inspection of the empirical ROC curve indicated that the decision boundary provided the optimal threshold to distinguish between moderate and vigorous physical activity for this dataset. In conclusion, decision boundaries reduced the error associated with determining accelerometer threshold values. Applying these methods to accelerometer data collected in specific populations will improve the precision with which accelerometer thresholds can be identified.     

Pedagogy before Technology: Re-thinking the Relationship between ICT and Teaching

This paper addresses a conundrum: despite the ubiquity of technology in the business world, no clear role has emerged in education. After many years of national policies and investment in Information Technologies in the UK and elsewhere, technology is still an imposed and novel 'outsider' in the pedagogy of schools. This paper charts a series of experiences and failures in the UK, and highlights the unresolved dichotomy of purpose about why Information and Communication Technology (ICT) should be used in education. Understanding the problematic of using Information Technologies demands a consideration of some more fundamental educational issues. ICT is often perceived as a catalyst for change, change in teaching style, change in learning approaches, and change in access to information. Yet the rhetoric for change has been too associated with the symbolic function of technology in society, which sits uncomfortably with teachers' professional judgements. So educational computing, it would appear, has yet to find its own voice. This paper explores this notion.     

Statistical variation in a chance setting: A two-year study

A series of 13 survey questions based on a 50-50 spinner is used to explore school students' understanding of statistical variation in a chance setting. Five questions set the context by assessing the understanding of theoretical expectation and representation of repeated trials in a stacked dot (line) plot. Four questions provide opportunity to display appreciation of variation from point expectation and four questions address variation from distributional expectation. Three hundred and seventy-five students in Grades 3–9 answered some or all of these questions. These students then took part in a unit of study on chance and data emphasizing variation. Of these students, 334 answered a post-test including the same items and a further subset of 199 students completed a longitudinal survey of the same items two years later. Analysis of the initial data showed a progression of understanding across the years of schooling, plateauing at Grade 7, improvement for all grades after instruction, and generally sustained and continuing improved performance after two years. Educational issues are considered. This revised version was published online in July 2006 with corrections to the Cover Date.