Assessment of Autism Symptoms From 6 to 18 Months of Age Using the Autism Observation Scale for Infants in a Prospective High-Risk Cohort

The objectives were to characterize behavioral signs of autism spectrum disorder (ASD) in younger siblings of diagnosed children (high-risk; HR) and examine classification features of the Autism Observation Scale for Infants (AOSI). Participants (501 HR and 180 low-risk [LR]) were assessed between 6 and 18 months using the AOSI and at age 3 for ASD diagnoses. Total AOSI scores differentiated HR infants later diagnosed with ASD starting at 12 months. ROC analyses identified 12- and 18-month cutoff scores associated with 0.52 sensitivity and 0.74 specificity and 0.73 sensitivity and 0.65 specificity, respectively. Although classification accuracy does not support use as a standalone screen, the AOSI identifies features associated with ASD starting at 6 months and differentiates HR infants with ASD by 12 months.     

Designing educative curriculum materials in interdisciplinary teams: designer processes and contributions

Instructional Science - Educative curricula support teacher learning as well as the learning of students. High quality educative curricula contain features that help teachers customize learning...     

Child Language Difficulties and Internalizing and Externalizing Symptoms: A Meta-Analysis

This study conducted two meta-analyses to synthesize the association between children’s language skills and two broad-band dimensions of psychopathology: internalizing and externalizing. Pooled estimates across 139 samples (externalizing k = 105; internalizing k = 90) and 147,305 participants (age range: 2–17 years old; mean % males: 53.75; mean % White participants: 55.59; mean % minority participants: 43.12) indicated small but significant associations between child language skills and externalizing problems (Hedges’ g = .22) and between language skills and internalizing problems (Hedges’ g = .23). The association between language difficulties and externalizing problems was stronger amongst males and in children with low versus high sociodemographic risk. Implications of the results for theory and practice are discussed.     

University Strategic Plans: What they Say about Innovation

Innovative Higher Education - We analyze innovation in university strategic plans to assess whether innovation is a stated priority, to what end innovation is sought, and whether innovation is a...     

The influence of brief stimuli uncorrelated with reinforcement on choice between variable-ratio schedules

Experiment 1 investigated the behavior of rats trained to leverpress on a concurrent variable ratio (VR) 30 VR-30 schedule with a brief, 500-msec, light occurring at the midpoint of the ratio on one of the levers. Higher response rates were recorded on the lever associated with this stimulus, a finding that paralleled the effect produced by inserting primary reinforcement at the midpoint (i.e., by training on a concurrent VR-30 VR-15 schedule). Similar results were found in Experiment 2 using a concurrent VR-20 VR-20 schedule with a 2-sec visual stimulus presented midway through one of the components. In addition, a brief stimulus inserted midway through the VR-20 component of a concurrent VR-20 VR-10 schedule retarded the development of a difference in response rates between the components relative to a VR-20 VR-10 group lacking the signal. In Experiment 3, multiple VR VR schedules were used. Again, the response rate was higher in the component that had the added stimulus or, for a second group of subjects, on the component with the smaller response requirement. Probe-choice trials revealed a preference for the component that generated the higher rate in both groups. Presenting a stimulus partway through a ratio appears to reduce the effect on response rate and choice of a large ratio value.     

Reading comprehension difficulties in children

This paper reports two studies investigating the nature of comprehension deficits in a group of 7–8 year old children whose decoding skills are normal, but whose reading comprehension skills are poor. The performance of these poor comprehenders was compared to two control groups, Chronological-Age controls and Comprehension-Age controls. The first study examined whether these comprehension difficulties are specific to reading. On two measures of listening comprehension the poor comprehenders were found to perform at a significantly lower level than Chronological-Age controls. However, they did not differ from a group of younger children matched for reading comprehension skills. This indicates that the observed comprehension difficulties are not restricted to reading, but rather represent a general comprehension limitation. The second study investigated whether these comprehension difficulties can be explained in terms of a memory deficit. The short-term and working memory skills of these three groups were examined. The poor comprehenders did not differ from their Chronological-Age controls on either of these tasks. In conclusion, it is argued that working memory processes are not a major causal factor in the creation of the comprehension difficulties identified in the present group of poor comprehenders.     

Computer support for curriculum developers: CASCADE

This paper examines research on a family of computer-based tools, CASCADE (Computer ASsisted Curriculum Analysis, Design and Evaluation), designed to assist in the complex task of curriculum development. It begins with discussion of curriculum developers and their activities, followed by examination of how the computer can offer support for their tasks. The main elements of four related systems for computer supported curriculum development are discussed and approaches to designing tools of this nature are considered. Following an overview of main findings, this article concludes with thoughts on fruiful directions for research on computer supported curriculum development, emphasizing the need for increased attention to implementation and impact studies.     

Teacher–Child Conversation in the Preschool Classroom

This article explores conversations between preschool children and their teachers in the classroom environment. Teachers have an opportunity to engage students in cognitively challenging conversations at critical times during the day: book reading, playtime, and mealtimes. The article provides examples of the types of conversations preschool educators can model and facilitate in order to further develop a child's oral language and subsequent literacy skills during the school day.     

Science on Saturday Morning: children's perceptions of science in educational and non‐educational cartoons

The Federal Communications Commission is considering whether to strengthen the implementation of the Children's Television Act of 1990, which requires broadcasters to air educational and informational programs for children. Some broadcasters have opposed such measures, arguing that not enough children will watch educational programs. This argument assumes that children distinguish between educational and non‐educational programs, find educational programs less appealing, and consequently are unlikely to watch them. The present study tests these assumptions directly, through a comparison of two animated programs set in prehistoric times, Cro (an educational program about technology) and The Flintstones (a non‐educational program). Results indicated that Cro’s technology content was salient to children but, contrary to the above assumptions, children did not distinguish between the programs on the basis of their educational content, and both programs were highly appealing.