Validation of Using Fitness Center Attendance Electronic Records to Assess the Frequency of Moderate/Vigorous Leisure-Time Physical Activity Among Adults

The purpose of this study was to provide three construct validity evidence for using fitness center attendance electronic records to objectively assess the frequency of leisure-time physical activity among adults. One hundred members of a fitness center (45 women and 55 men; aged 18 to 64 years) completed a self-report leisure-time physical activity questionnaire. The theory of planned behavior constructs (e.g., intention and perceived behavioral control), VO₂max, and % BF were assessed. Fitness center attendance electronic records were expressed as the weekly mean number of mandatory check-in records retrieved from the fitness center's electronic database over a 12-week period prior to participant's physical fitness evaluation. A continuous (frequency) and categorical (“adherent” versus “non-adherent”) scores were computed. Results indicated that perceived behavioral control was associated with fitness center attendance electronic records and mediated the fitness center attendance electronic records–intention relationship. Fitness center attendance electronic records were associated with VO₂max and self-report leisure-time physical activity. Therefore, results provide three evidence of construct validity of using fitness center attendance electronic records scores to assess leisure-time physical activity behavior.     

Design observations for interagency collaboration

We present 14 design observations for public safety networks (PSNs) and describe how they may apply more broadly to a wider range of inter-organizational systems within the public sector. A PSN is an interagency collaboration focused on developing and using information systems in support of information sharing and functional interoperability among public safety organizations engaged in law enforcement, criminal justice, and emergency response. We base our design observations upon an analysis of an extensive survey of 80 PSNs plus 6 in-depth case studies. The design observations identify commonalities that can guide agencies participating in interagency collaborations in addressing the interlocking issues they face. Our goal in presenting this set of design observations is to: (1) encourage improved PSN systems design and (2) draw attention to the importance of jointly addressing governance and technological considerations when designing PSNs.     

‘I came like the thunder and I vanish like the wind’: exploring genre repertoire and document work in the Assemblea operai e studenti of 1969

This paper will examine a suite of documents generated within one Italian post-war social movement as a means to explore four assertions: (a) that the common practice of addressing the printed word generated by social movements primarily as bearers of linguistic and conceptual content (‘texts’) too often comes at the price of ignoring certain fundamental matters of which the materiality of these documents can inform us; (b) that, connected to this, the lenses of genre and genre repertoire offer important means of deepening our readings not only of the content of social movement documents, but also the broader context of their production and use; (c) used with care, understandings of genre, genre repertoire and the materiality of documents can likewise inform the efforts of those working—in the community, in the history and heritage professions, and at the intersection of all three—to preserve and manage such documents; (d) reflections upon genre, genre repertoire and the materiality of documents may also contribute to the ongoing development of a critical information studies.     

The Psychology of Delivering a Psychological Service: Self‐organised learning as a model for consultation

The article describes how one Educational Psychology Service in the UK developed a service delivery based on self‐organised learning (SOL). This model is linked to the paradigms and discourses within which educational psychology and special educational needs work.

The work described here is dedicated to the memory of Brian Roberts, academic, close friend of Steve and a source of inspiration to both the authors.     

Precision prediction based on ranked list coherence

We introduce a statistical measure of the coherence of a list of documents called the clarity score. Starting with a document list ranked by the query-likelihood retrieval model, we demonstrate the score's relationship to query ambiguity with respect to the collection. We also show that the clarity score is correlated with the average precision of a query and lay the groundwork for useful predictions by discussing a method of setting decision thresholds automatically. We then show that passage-based clarity scores correlate with average-precision measures of ranked lists of passages, where a passage is judged relevant if it contains correct answer text, which extends the basic method to passage-based systems. Next, we introduce variants of document-based clarity scores to improve the robustness, applicability, and predictive ability of clarity scores. In particular, we introduce the ranked list clarity score that can be computed with only a ranked list of documents, and the weighted clarity score where query terms contribute more than other terms. Finally, we show an approach to predicting queries that perform poorly on query expansion that uses techniques expanding on the ideas presented earlier.