Back to our beginnings: information utilization, Bertram Brookes and the fundamental equation of information science

This analytical paper is in three parts. Firstly, it provides a brief review of the terrain of information utilization, a fundamental concept in the discourse of information seeking and use behavior. This review identifies dominant conceptualizations of information utilization, and identifies a research gap in relation to the cognitive dimensions of information utilization. Secondly, against this backdrop, it posits and examines Bertram Brookes' fundamental equation of information science as a theoretical framework for furthering our understanding of, and research into, the cognitive aspects of information utilization. Thirdly, it discusses some methodological aspects for investigating Brookes' equation in order to build a cumulative knowledge of the cognitive dimension of information utilization.     

Four Blocks for Literacy

The literacy hour within the National Literacy Strategy is now part of primary classroom practice in the UK. That literacy hour consists of four distinct parts which are debated here. In addition an alternative Four Blocks framework, as used by some schools in the USA, is explored. The differences between those approaches are noted which raise questions about the time allocation, a sustained involvement with reading and writing, and teacher autonomy in the literacy hour.     

The May Center for Early Childhood Education: description of a continuum of services model for children with autism

Children with autism have complex learning and behavioural challenges which typically require comprehensive educational and therapeutic services. In recent years there have been many developments in the philosophy, methodology, and scope of intervention for this population. Factors such as early intervention, criterion‐referenced assessment, the combination of applied behaviour analysis and developmentally appropriate practices (DAP), parent training, and public school inclusive education have been noteworthy. This article describes a comprehensive continuum of services model for children with autism developed by a human services agency in Massachusetts which incorporates these and additional empirically‐based approaches. Service components, methodologies, and program objectives are described including representative summary data. The article concludes with a discussion of educational, therapeutic, and research issues which address “best practice” approaches toward children with autism.     

The communication of laboratory investigations by university entrants

The purpose of the study reported here was to analyse the ways in which unversity entrant science students carry out and communicate experimental activities and to identify a model to explain characteristic communication practices. The study was prompted by a need to inform the development of an introductory laboratory course. The students studied shared an educational background characterised by a lack of experience with laboratory work and scientific writing. Seven groups of three students were studied. The investigative strategies of these groups were observed. Laboratory reports were used to identify the ways in which students communicated these strategies. Data are presented that show a discrepancy between the strategies used and those reported. The results suggest that: (i) students' perceptions of the purpose of a laboratory task influence their decisions on what to report; (ii) understandings of laboratory procedures greatly influence their decision on what to report and on how much detail to include in a report and; (iii) knowledge of discourse rules contributes to effective reporting. It is concluded that students' communication of an investigation results from the differential operation of various perceptual filters that determine both the procedural and discourse elements of their reports. It is recommended that the communication of science should be taught explicitly and alongside the procedures and concepts of science. © 2000 John Wiley & Sons, Inc. J Res Sci Teach 37: 839–853, 2000     

Conceptualizing adverse childhood experiences as a latent factor: Tests of measurement invariance across five racial and ethnic groups

Adverse childhood experiences (ACEs) are conventionally measured using a cumulative-risk index without consideration of distinct measurement properties across racial and ethnic groups. Drawing from the 2018–2020 National Survey of Children's Health (N = 93,759; 48% female; average age: 9.52 years), we assess the measurement invariance of a latent-factor ACE model across five groups: Hispanic children (14%) and non-Hispanic White (73%), Black (7%), Asian/Pacific Islander (5%), and American Indian/Alaskan Native (1%) children. Results support configural and full metric invariance across groups. However, several ACE item thresholds differed across groups. Findings highlight the potential utility of a latent factor approach and underscore the need to assess differences across racial and ethnic groups in terms of the optimal conceptualization and measurement of ACEs.