The Value of Vocalizing: Five-Month-Old Infants Associate Their Own Noncry Vocalizations With Responses From Caregivers

The early noncry vocalizations of infants are salient social signals. Caregivers spontaneously respond to 30%–50% of these sounds, and their responsiveness to infants’ prelinguistic noncry vocalizations facilitates the development of phonology and speech. Have infants learned that their vocalizations influence the behavior of social partners? If they have, infants should show an extinction burst in vocalizing when adults temporarily stop responding to infant vocalizations. Thirty‐eight 5‐month‐olds were tested in the still‐face paradigm with an unfamiliar adult. When the adult assumed a still face, infants showed an extinction burst. Thus, 5‐month‐olds have learned the social efficacy of their vocalizations on caregivers’ behavior. Furthermore, the magnitude of 5‐month infants’ extinction bursts predicted their language comprehension at 13 months.     

Transitioning in elementary school: parent advocacy and teacher allyship

This paper examines how parent advocacy and teacher allyship played an important role in supporting six-year-old Violet Addley’s (a pseudonym) gender transition in elementary school. We first met the Addley family in the spring of 2015 when we interviewed them for a research study on the experiences of lesbian, gay, bisexual, transgender, and queer (LGBTQ) families in Ontario schools. The goals of the study are to interview LGBTQ families about issues that come up at school, document how families have worked with schools to create safer and more respectful classrooms for their children, and share the families’ interviews with teachers and principals so they can begin to think about the ways they can best work with LGBTQ parents and their children. Our paper also discusses what a group of teachers learned about parent advocacy and teacher allyship from their engagement with the Addley family interviews.     

Testing the usability of a portable DVD player and tailored photo instructions with older adult veterans

DVD-delivered behavioral skills training may help disseminate efficacious treatments to older adults independent of internet access. The present study examined the usability of a portable DVD player alongside iterative revisions of accompanying instructions to be used by older adults in a DVD-delivered behavioral skills treatment study. The sample comprised 20 older adults with a mean age of 69.5 years (SD = 7.3). Behavior observations revealed that three of five steps to play the DVD were completed by more than 90% of participants. Quantitative ratings revealed that 75% could play the DVD easily. Qualitative content analysis further elucidated the usability of the player and the clarity of the instructions. Findings suggest user-centered design of instructional support in DVD-delivered treatments for older adults may be critical to minimizing user error and frustration and increase user experience.     

Relationship between the expressive one-word picture vocabulary test and measures of intelligence,receptive vocabulary,and visual-motor coordination in borderline and mildly retarded children

Analysis of the relationship between the Expressive One-Word Picture Vocabulary Test and Stanford-Binet Intelligence Scale, Peabody Picture Vocabulary Test, Developmental Test of Visual-Motor Integration, and three language subscales within the Stanford-Binet was performed on a sample of preschool children within the borderline and mildly retarded ranges of intelligence. Adequate convergent and discriminant validity indices were found to support tentatively the use of the Expressive One-Word Test as one measure of verbal intelligence with this population.     

Improving the study habits of minority students through web-based courses

Conclusions Asynchronous Distance Learning courseware offers several advantages to multiple disadvantaged learning populations. While asynchronous Distance Learning Interactive Multimedia Instruction offers financially strapped HBCUs lower operating costs, it also offers HBCUs and non-traditional student populations improved (1) accessibility, (2) user acceptance. Many Distance Learning students chose online sections as an alternative to not taking the course at all rather than to the traditional classroom section. Among technologically savvy populations, user acceptance for Distance Learning is high. Also interesting was how traditional learning populations benefited from some Distance Learning strengths, (1) hypermedia external resources for self-directed learning, and (2) frequently graded assignments improving study habits. In converse, the non-traditional student populations taking the Distance Learning sections reported less studying time, and suffered from slightly lower learning retention on the final examination.     

Applying the Collective Causal Mapping Methodology to Operations Management Curriculum Development*

Although the field of operations management has come a long way since its beginnings in scientific management, the field still appears somewhat amorphous and unstructured to many. Introductory operations management textbooks usually include a number of largely disjointed topics, which leave many students (and their instructors) without a coherent framework for understanding the field. As a result, the importance and sequencing of topics varies widely between courses and instructors, even within the same university. This article applies the newly developed Collective Causal Mapping Methodology to create a causal map for the entire field of operations management. The causal map is built on expert opinions collected from over 250 academics and practitioners representing many areas of expertise, schools, organizations, and countries. This collective causal map is then used to create a new framework for understanding and teaching operations management. This framework can aid instructors in determining which topics should be taught in an operations management course, how these topics might be grouped and sequenced, and the important interrelationships among the topics that should be stressed to students.     

The relationship between design reflectivity and conceptions of informed design among high school students

ABSTRACT

Although reflection is a key behaviour of expert designers, it is often a challenging task for new designers. In addition, research on the reflectivity of student designers is limited. The purpose of this study is twofold: (1) to identify the levels of reflectivity while designing, and (2) to study the relationship between reflectivity and conceptions of informed design. We collected data from high school students engaged in an engineering design project. We developed a coding protocol to score levels of reflectivity in student reflections at three levels (low, medium, and high), and used the conceptions of design test to assess changes in student understanding of design activities. Using Wilcoxon signed-rank tests, we determined if students tended to select more ‘key’ design activities and fewer ‘distractors’ within each reflection group. We also performed McNemar’s tests to determine which specific design activities were important within each reflection group after the design project. The results show moderately reflective students had higher gains in understanding of informed design activities compared to those with high or low reflectivity. Results also indicate that different design activities became important for students within each of the three reflective groups. Implications from this research indicate that groups of students experience changing conceptions of design in different ways. An understanding of what students deem important while designing would better allow teachers to encourage behaviours that are like those of informed designers.