Changing Demand Driven Acquisition Ebook Models: A History and Preliminary Results at the Colorado Alliance of Research Libraries

In 2016, ProQuest started advertising their new Access to Own (ATO) model for ebooks as an alternative to their other Demand Driven Acquisition (DDA) models. The ATO model was touted as applying the cost of loans toward title ownership to balance costs of purchasing and loans. This article shares the Colorado Alliance of Research Libraries' history of ebook DDA and the process of transition to a DDA ATO model.     

Make It Work: Using Service Design to Support Collaboration in Challenging Times

Student success units, like Writing Centers, are logical partners for academic libraries. It is not uncommon to find tutoring or academic support services located in library Learning Commons spaces. At Oregon State University, we recently launched a Research and Writing Studio that takes these partnerships to the next level. This column examines the relevance of a service design approach to collaborative space planning. It further examines the challenging process of applying idealized or general models and theories to the reality of our daily work and local contexts.     

The effect of print size on reading speed in dyslexia

This article details a study which predicted that across a wide range of print sizes dyslexic reading would follow the same curve shape as skilled reading, with constant reading rates across large print sizes and a sharp decline in reading rates below a critical print size. It also predicted that dyslexic readers would require larger critical print sizes to attain their maximum reading speeds, following the letter position coding deficit hypothesis. Reading speed was measured across twelve print sizes ranging from Snellen equivalents of 20/12 to 20/200 letter sizes for a group of dyslexic readers in Grades 2 to 4 (aged 7 to 10 years), and for non-dyslexic readers in Grades 1 to 3 (aged 6 to 8 years). The groups were equated for word reading ability. Results confirmed that reading rate-by-print size curves followed the same two-limbed shape for dyslexic and non-dyslexic readers. Dyslexic reading curves showed higher critical print sizes and shallower reading rate-by-print size slopes below the critical print size, consistent with the hypothesis of a letter-position coding deficit. Non-dyslexic reading curves also showed a decrease of critical print size with age. A developmental lag model of dyslexic reading does not account for the results, since the regression of critical print size on maximum reading rate differed between groups.     

Science discovery: Inside story

Human Anatomy in preschool? The answer is a resounding, “Yes!” The decision to study the “inside parts” of our bodies was based on solid ground. Young children ask questions about their bodies and we looked for activities which could help answer some of those questions.     

Counter engagement: parents refusing high stakes testing and questioning policy in the era of the common core

This study is a critical discourse analysis of the New Jersey Opt-Out Movement. In 2015, and in response to the increasing standardization of US public school instruction, and over-use of high-stakes testing, NJ parents began to refuse to allow their children to take a key end-of-the year exam, the PARCC. We employ the concepts of master and counter narratives to exam the qualitative data that was collected in an online-questionnaire, a focus group, and refusal letters. We argue that these parents have refused this exam for their children based on differing reasons, that parents effectively changed the master narrative of the PARCC to grow their movement, and their refusal letters were key in promoting a new counter narrative.     

Transfer of visual and haptic maze learning in rats

Cross-modal transfer of learning between black/white and rough/smooth discrimination tasks was studied in a two-choice maze procedure in which the stimuli for both discriminations were located on the floor of the maze. Rats were trained initially with cues of one modality and then given transfer training with cues of the second modality. The amount of transfer produced by two criteria of learning, 9 correct responses in 10 trials and 18 correct responses in 20 trials, was also studied. Bidirectional cross-modal transfer of learning was demonstrated more clearly with the more stringent learning criteria. These positive transfer effects appeared primarily to be the result of general transfer processes.     

Components of Understanding in Proportional Reasoning: A Fuzzy Set Representation of Developmental Progressions

The development of proportional reasoning was examined using a temperature mixture task. Each individual's task understanding was assessed by components measuring understanding of various principles of the task. Age differences were found in the mean component scores. More important, different patterns of components were found depending on whether the task was presented numerically or nonumerically. Component patterns also depended on whether the task was presented such that subjects predicted the outcome of combining 2 containers of water at different temperatures (prediction task) or such that subjects inferred 1 of the 2 initial temperatures given the final temperature (reverse task). The results show the importance of distinguishing between intuitive knowledge and formal computational knowledge of proportional concepts and provide a new perspective on how intuitive and computational knowledge are related during development. Finally, the results also led to a new conceptualization of developmental levels as categories with fuzzy boundaries. Under this conceptualization, individuals can have different degrees of membership in "fuzzy developmental levels." This new concept preserves individual differences but also describes the sequence of development.