Planned Missing Data Designs for Spline Growth Models in Salivary Cortisol Research

Salivary cortisol is often used as an index of physiological and psychological stress in exercise science and psychoneuroendocrine research. A primary concern when designing research studies examining cortisol stems from the high cost of analysis. Planned missing data designs involve intentionally omitting a random subset of observations from data collection, reducing both the cost of data collection and participant burden. These designs have the potential to result in more efficient, cost-effective analyses with minimal power loss. Using salivary cortisol data from a previous study (Hogue, Fry, Fry, & Pressman, 2013 Hogue, C. M., Fry, M. D., Fry, A. C. and Pressman, S. D. 2013. The influence of a motivational climate intervention on participants’ salivary cortisol and psychological responses. Journal of Sport & Exercise Psychology, 35: 85–97. [PubMed], [Web of Science ®] , [Google Scholar]), this article examines statistical power and estimated costs of six different planned missing data designs using growth curve modeling. Results indicate that using a planned missing data design would have provided the same results at a lower cost relative to the traditional, complete data analysis of salivary cortisol.     

Are interpersonal relationships necessary for developing trust in online group projects?

Trust between group members has been suggested as an important part of small group work in online classrooms. Developing interpersonal relationships with group members may promote a sense of trust among them; however, research shows mixed results. The current study explored how students’ perceptions of the importance of interpersonal relationships in online groups affected their perceptions of trust and experiences within the group. Students enrolled in online classes that incorporated a group project were surveyed about their experiences with online group projects. Participants did not find interpersonal relationships as necessary in trust development. However, student gender and type (i.e., distance versus on-campus) were important factors in determining the type of experiences students had within their online groups. Males reported more negative experiences than females, and distance education students desired relationships with group members more than on-campus students.     

Intrinsic integration in learning games and virtual instruction

This paper responds to a 2016 systematic literature review of the research on learning games by Ke (Educ Technol Res Dev 64(2):219–244, 2016). The review paper unpacked the idea of intrinsic integration in learning games, analyzing important emergent themes. The key ideas and the value of this review are discussed in the context of the recent shift to virtual instruction. The limitations, impact, and future implications are also described, with the perspective of this response focused on education theory. Intrinsic integration is an important consideration when designers create the next generation of digital games, and as researchers try to untangle the affordances of different educational games for student learning.

     

Explaining phonology and reading in adult learners: Introducing prosodic awareness and executive functions to reading ability

Background

This study was designed to extend our understanding of phonology and reading to include suprasegmental awareness using measures of prosodic awareness, which are complex tasks that tap into the rhythmic aspects of phonology. By requiring participants to access, reflect on and manipulate word stress, the prosodic awareness measures used here necessarily impose demands on the executive system. Prosodic awareness was evaluated as a phonological predictor of reading in older readers while controlling for executive functions (EF) in order to ascertain whether observed predictive relationships could be confidently attributed to suprasegmental awareness.

Methods

103 adults between 18 and 55 years of age completed tasks on prosodic awareness, EF, vocabulary, nonverbal abilities, naming speed and short‐term memory.

Results

Independent contributions of prosodic awareness added to models of word reading, whereas EF processes did not uniquely contribute to adult reading outcomes.

Conclusions

Suprasegmental phonology explains individual differences in word reading among experienced readers. Theoretical implications of findings are discussed.

Implications for Practice

What is already known about this topic

• Phonological awareness (PA) becomes less predictive of reading in older readers. PA is typically assessed at the level of the segment (e.g., phonemes, syllables and onset‐rimes), with less focus on suprasegmental processes (e.g., rhythm, stress and intonation).
• Suprasegmental phonological processing includes measures of prosodic ability (e.g., awareness and manipulation of suprasegmental features of oral language). Studies on prosodic awareness and reading have independent contributions beyond segmental PA in early readers. Less work has been investigated among adult readers.
• Executive functions (EF) including inhibitory control, working memory, switching and updating and monitoring of goal directed behaviour, predict overall academic achievement. Limited studies have controlled for EF demands in phonological tasks.

What this paper adds

• Tasks of prosodic awareness necessarily impose demands on the executive system when manipulating components of oral language. After controlling for EF and controls, prosodic awareness explained individual differences in adult word reading.
• Tasks of suprasegmental phonological processes explain the association between phonology and reading in older and more experienced readers. Researchers who explore phonology and reading development should begin to include tasks of prosodic awareness to examine the dual role of segmental and suprasegmental PA as it is implicated across development.

Implications for theory, policy or practice

• Theoretical models of phonology and reading can be extended to include suprasegmental processes.
• For educational practitioners involved in reading assessment of older readers, tasks of prosodic awareness are a more age‐appropriate measure of phonology.
• Tasks of phonology and reading with increasing complexity impose greater demands on the executive system. The relationship between cognitive flexibility and reading needs to be considered in theoretical models of reading.

     

Accounting for Macroappraisal at Library and Archives Canada: From Disposition to Acquisition and Accessibility

This article explains the re-engineering of the government records disposition program at Library and Archives Canada (LAC) in 2002–2004. The main point is that the framework of accountability has grown since the launch of the macroappraisal program (often referred to as the planned approach to disposition) at the (former) National Archives of Canada (NA) in 1990–1991. The opportunity for building an expanded framework of accountability presented itself after 2000 when a number of “push” (internal to the disposition program) and “pull” (external to the program) factors coalesced to challenge a reduced program. The reengineering exercise involved LAC government records archivists working together to develop the following new program documentation: Government-Wide Plan (GWP); Memorandum of Understanding (MOU); Appraisal Checklist; Terms and Conditions for the Transfer of Archival Records; Briefing Note for the Librarian and Archivist of Canada; and the Multi-Institutional Disposition Authority (MIDA) for Operational Case Files. Significant work also went into creating version three of the Records Disposition Authorities Control System (RDACS). As a result of reengineering the appraisal and disposition program, there is an accountability framework now in place for more than keep-destroy recommendations, one that has moved beyond disposition to include acquisition of and accessibility to the archival record.     

Effects of Item Wording on Sex Bias

This study examined the effects of gender-related item-wording changes on the performance of male and female examinees. Mathematics word problems and English language items were created in neuter, male, and female versions. Items were administered to randomly equivalent samples of about 300 high school juniors and seniors. Loglinear analysis was used to assess the impact of item gender and its interaction with examinee sex on the difficulty and discrimination of each item in each context. No items were found to have sex bias in either context. Mathematics items did not have different difficulty or discrimination in the three gender versions. Neither mathematics nor English items had different discrimination levels in the three gender-related versions. Some English items, however, were found to have different difficulty levels in the three gender-related versions. These difficulty differences were not systematic." none of the three gender versions appeared consistently more or less difficult than the others.     

Young people’s views on sexting education and support needs: findings and recommendations from a UK-based study

Young people’s sexting is an area of increasing concern amongst parents, educationalists and policy makers, yet little research has been conducted with young people themselves to explore their perspectives on the support they need to navigate relationships in the new digital media landscape. To address this absence, an inter-disciplinary team of researchers undertook a participatory study with students, aged 13 to 15, in a UK secondary school. This paper outlines key study findings, including young people’s views on sexting, their recommendations for improved education around sexting in schools, their preferred sources of support, and their perspectives on the way adults should respond to young people’s sexting. Findings indicate that sexting education needs to be developed within the context of wider relationship issues, such as gender, power dynamics and trust between peers, and improved communication between students and teachers or other responsible adults. Findings may be used to consider ways of designing and communicating messages around sexting to young people within and beyond educational settings.     

The Test's the Thing: viewpoints of students with special educational needs

This paper presents views on testing by a cross‐cultural sample of primary and secondary students with special educational needs. While some of the responses indicated that tests were useful for feedback and motivation, half of the sample disliked having tests and found them boring. These negative views were intensified by the marks that the students received and the physical and emotional effects during the testing. As the students viewed tests and assessment as necessary components of school life, the paper concludes that children with special educational needs are entitled to help to overcome their anxieties and that positive classroom practice can help to effect this.