Comparison of bite-presentation methods in the treatment of food refusal

The current study examined the rate of expulsions and mouth cleans across 3 presentation methods (upright spoon, flipped spoon, Nuk brush) for a 3-year-old girl with a feeding disorder. The participant expelled all bites presented on an upright spoon. Results showed reduced rates of expulsions and increased mouth cleans during the flipped spoon and Nuk brush presentation methods.     

Robust and powerful nonorthogonal analyses

Numerous types of analyses for factorial designs having unequal cell frequencies have been discussed in the literature. These analyses test either weighted or unweighted marginal means which, in turn, correspond to different model comparisons. Previous research has indicated, however, that these analyses result in biased (liberal or conservative) tests when cell variances are heterogeneous. We show how to obtain a generally robust and powerful analysis with any of the recommended nonorthogonal solutions by adapting a modification of the Welch-James procedure for comparing means when population variances are heterogeneous.This research was supported by a Social Sciences and Humanities Research Council (SSHRC) grant (# 410-92-0430) to the first author, a Manitoba Health Research Council Scholar Award and a grant from Natural Sciences and Engineering Research Council to the second author, and a SSHRC Doctoral Fellowship (# 752-92-1628) to the third author. The authors would like to express their gratitude to Joanne Keselman and three anonymous reviewers for their many helpful substantive comments on earlier drafts of this paper.     

Empirically Defining Treatment Response and Remission in Body Dysmorphic Disorder Using a Short Self-Report Instrument

Determining response or remission status in body dysmorphic disorder (BDD) usually requires a lengthy interview with a trained clinician. This study sought to establish empirically derived cutoffs to define treatment response and remission in BDD using a brief self-report instrument, the Appearance Anxiety Inventory (AAI). Results from three clinical trials of BDD were pooled to create a sample of 123 individuals who had received cognitive-behavioral therapy for BDD, delivered via the Internet. The AAI was compared to gold-standard criteria for response and remission in BDD, based on the clinician-administered Yale–Brown Obsessive Compulsive Scale, modified for BDD (BDD-YBOCS), and evaluated using signal detection analysis. The results showed that a ≥ 40% reduction on the AAI best corresponded to treatment response, with a sensitivity of 0.71 and a specificity of 0.84. A score ≤ 13 at posttreatment was the optimal cutoff in determining full or partial remission from BDD, with a sensitivity of 0.75 and a specificity of 0.88. These findings provide benchmarks for using the AAI in BDD treatment evaluation when resource-intensive measures administered by clinicians are not feasible.     

International Semiotics: Item Difficulty and the Complexity of Science Item Illustrations in the PISA-2009 International Test Comparison

We examined multimodality (the representation of information in multiple semiotic modes) in the context of international test comparisons. Using Program of International Student Assessment (PISA)-2009 data, we examined the correlation of the difficulty of science items and the complexity of their illustrations. We observed statistically significant mean correlation coefficient differences favoring higher-ranking over lower-ranking jurisdictions and non-Western over Western jurisdictions. We examined this correlation as a function of the variety of forms of representation of information used in illustrations. For the highest-ranking jurisdictions, the correlation tended to be positive and its magnitude tended to increase with the number of forms of representation. For the lowest-ranking jurisdictions, the correlation tended to be negative and its magnitude tended to increase with the number of forms of representation. Increased illustration complexity appears to be an affordance in making sense of science items for students from the highest-ranking jurisdictions and a challenge for students from the lowest-ranking jurisdictions. Our findings support the notion that integrating information provided in multiple semiotic modes is critical to science achievement and underscore the importance for science standards and international assessment frameworks to address this skill as intrinsic to (rather than an aspect of) science proficiency.     

The dark side of Instagram: Predictor model of dysmorphic concerns

Background/ObjectiveDysmorphic concern are excessive preoccupation about one or several physical characteristics perceived as defects, usually unnoticeable by others. This study was intended to explore the relationship between Instagram use and dysmorphic concerns through appearance-related comparisons, ideas of reference and problems with emotion regulation, and find out whether this relationship is moderated by gender. Method: The sample was comprised of 796 participants (M_age = 22.49; SD = 3.56; 54% women). Results: The results showed a non-significant direct effect between Instagram use and dysmorphic concerns. However, the relationship between these variables was statistically significant through appearance-related comparisons, ideas of reference about “laughing, commenting” and difficulties in emotion regulation. Gender did not moderate any relationship. Conclusions: Men and women who made the most use of Instagram were equally vulnerable to dysmorphic concerns when they tended to compare their appearance with other users, had problems regulating their emotions, and showed interpretative biases related to the belief that others could make comments about them or laugh at them because of their imperfections. The implications of the study are discussed.     

The Effectiveness of Alternative Preference Elicitation Methods in the Analytic Hierarchy Process

This study compares alternative preference elicitation methods that are currently available in software implementations of the analytic hierarchy process. For the simple problem used in this study, the elicitation methods may be sorted from least to most accurate as follows: (1) direct estimation, (2) graphical multiple bars, (3) graphical pairwise, (4) numeric pairwise and (5) verbal pairwise. However, the most accurate methods are not the easiest to use. Furthermore, actual accuracy differed substantially from users’ perceptions, indicating a need to assist the users in the selection of an appropriate elicitation method. © 1997 John Wiley & Sons, Ltd.     

THE VALIDATION OF PROCEDURES TO ASSESS PREVOCATIONAL TASK PREFERENCES IN RETARDED ADULTS

Three severely retarded young adults between the ages of 19 and 21 years participated in a prevocational training program, and worked regularly on six different tasks during the scheduled six-hour day. The study attempted to assess each subject's preferences for the six tasks: collating, stuffing, sorting, pulley assembly, flour-sifter assembly, and circuit-board stuffing. In Phase I, the procedure consisted of randomly pairing each task with all other tasks in a two-choice situation that required the subjects to select one task from each pair combination to work for a seven-minute period. The selection procedure consisted of presenting two representative task objects on a tray and requesting the subject to pick up one object and place it on the work table. The object selected represented the task worked for that period. The 15 possible pair combinations were presented randomly every two days for a period of 34 days to determine the preferences. During the validation phase (Phase II), each subject's least- and most-preferred tasks were paired separately with moderately-preferred tasks. As expected, these manipulations confirmed the baseline data, as choices for the moderately-preferred tasks decreased when consistently paired with the preferred tasks and increased when consistently paired with the least-preferred tasks.     

Women's social experiences before and during the COVID-19 pandemic: A 3-part measurement burst study among women in midlife with health risks

Women in midlife (ages 40–60) with elevated risk for cardiovascular disease (CVD) often rely on social networks during times of high stress. Precautions against the spread of COVID-19—particularly stay-at-home-orders—could have limited positive social experiences during a stressful time, but also could have reduced unwanted negative social experiences. This report presents findings from an ecological momentary assessment study that used 3 bursts of 5 surveys per day for 5 days, to test for changes in women's social experiences: prior to COVID-19 (2019), during stay-at-home-orders (April-May 2020), and during initial reopening (August-September 2020). Participants were women aged 40–60 with one or more CVD risk factors (e.g., hypertension; N = 35, M_Age = 51, M_BMI = 32.2 kg/m²). Momentary reports showed that the number of positive interactions experienced in daily life did not significantly change from before to during the pandemic; positive interactions were more variable during stay-at-home orders than pre-COVID, but rebounded by initial reopening (to pre-COVID levels). In contrast, the number of negative social interactions and social comparisons decreased from before COVID to stay-at-home orders, and remained lower during initial reopening; these experiences were also less variable during stay-at-home orders and initial reopening than before COVID-19. Thus, in a vulnerable group of women with health risks, there is little evidence that social experiences worsened during the first 6 months of the COVID-19 pandemic; decreases in (potentially) negative social experiences may be a small but beneficial side effect of short-term public health precautions.     

4～6岁幼儿颜色偏好实验研究

本实验采用对偶比较法．对4—6岁幼儿进行颜色偏好实验研究,结果表明：在4—6岁的年龄段中,幼儿颜色偏好顺序依次为：红、黄、橙、蓝、紫、绿;男女幼儿的颜色偏好有明显差异;不同年龄之间的幼儿颜色偏好没有明显差异。