Conceptualizing a Public Health Prevention Intervention for Bridging the 30 Million Word Gap

Early childhood experience is a social determinant of children’s health and well-being. The well-being of young children is founded on their relationships and interactions with parents and family members in the home, caregivers, and teachers in early education, and friends and families in the greater community. Unfortunately, the early language experience of infants and toddlers from low-income families is typically vastly different than children from middle- and higher-income families. Hart and Risley (Meaningful differences in the everyday experience of young American children. Brookes, Baltimore, 1995) described a “30 Million Word Gap” experienced by age four for children from poor families compared to economically advantaged families as measured by the number of words delivered by adults in the home to their children. This discrepancy between groups is associated with a deficit in vocabulary growth over time (Hart and Risley in Meaningful differences in the everyday experience of young American children. Brookes, Baltimore, 1995; in The social world of children learning to talk. Brookes, Baltimore, MD, 1999; in Am Educ (Spring), 1–9. http://isites.harvard.edu/fs/docs/icb.topic1317532.files/09-10/Hart-Risley-2003.pdf, 2003), and readiness when they enter preschool and kindergarten compared to their more advantaged classmates. The purpose of this paper is to conceptualize a population-level public health prevention approach to research addressing the harmful impacts of the Word Gap. The approach includes use of evidence-based practices to improve children’s language environments to foster their early language and literacy learning in early childhood. After a brief review of the Word Gap, we discuss four aspects: a conceptual framework, a community leadership team as driver of the local intervention, evidence-based language interventions for reducing the gap and promoting child language, and the measurements needed. Implications are discussed.     

Identifying and Addressing Barriers to Treatment Decision‐making in Bipolar II Disorder: Clinicians’ Perspective

Objective

Treatment decision‐making in bipolar II disorder is complex due to limited evidence on treatment efficacy and potentially burdensome side‐effects of options. Thus, involving patients and negotiating treatment options with them is necessary to ensure that final treatment decisions balance both clinician and patient preferences. This study qualitatively explored clinician views on (a) effective treatment decision‐making, unmet patient needs for (b) decision‐support and (c) information.

Method

Qualitative semi‐structured interviews with 20 practising clinicians (n = 10 clinical psychologists, n = 6 general practitioners, n = 4 psychiatrists) with experience treating adult outpatients with bipolar II disorder were conducted. Interviews were audiotaped, transcribed verbatim and analysed thematically using framework methods. Self‐report professional experience, and clinician preferences for patient decision‐making involvement were also assessed.

Results

Qualitative analyses yielded two inter‐related themes: (a) challenges and barriers to decision‐making and (b) facilitators of clinician decision‐making. Symptom severity, negative family attitudes, system‐based factors, and information gaps were thought to pose challenges to decision‐making. By contrast, decision‐making was supported by patient information, family involvement and patient‐centredness, and a strong therapeutic relationship. Clinician views varied depending on their professional background (medical vs clinical psychologist), patient involvement preferences, and whether the clinician was a bipolar specialist.

Conclusions

Whilst clinicians uniformly recognise the importance of involving patients in informed treatment decision‐making, active patient participation is hampered by unmet informational and decision‐support needs. Current findings inform a number of bipolar II disorder‐specific, clinician‐endorsed strategies for facilitating patient decision‐making, which can inform the development of targeted patient decision‐support resources for use in this setting.     

Savvy or Haphazard? Comparing Preschoolers’ Performance Across Selective Learning Tasks Based on Different Epistemic Indicators

Children frequently select learning sources based on epistemic cues, or cues pertaining to informants’ knowledge. Previous research has shown that preschoolers preferentially learn from informants who have been accurate in the past, appear confident, or have had visual access to relevant information. The present series of studies aimed to investigate the relation between these 3 types of epistemic selective learning abilities in 176 children ages 3 years to 6 years. Results indicated that children’s performance was mostly uncorrelated across the different selective learning tasks and tasks measuring theory of mind and executive function were not found to predict any selective learning skills. Implications for the reliability and current conceptual understanding of these selective learning tasks are discussed.     

Survey on Using Ethical Principles in Environmental Field Research with Place-Based Communities

Science and Engineering Ethics - Researchers of the Northeast Ethics Education Partnership (NEEP) at Brown University sought to improve an understanding of the ethical challenges of field...     

Google and the mind: predicting fluency with PageRank

Human memory and Internet search engines face a shared computational problem, needing to retrieve stored pieces of information in response to a query. We explored whether they employ similar solutions, testing whether we could predict human performance on a fluency task using PageRank, a component of the Google search engine. In this task, people were shown a letter of the alphabet and asked to name the first word beginning with that letter that came to mind. We show that PageRank, computed on a semantic network constructed from word-association data, outperformed word frequency and the number of words for which a word is named as an associate as a predictor of the words that people produced in this task. We identify two simple process models that could support this apparent correspondence between human memory and Internet search, and relate our results to previous rational models of memory.     

Is there any "free" choice? Self and dissonance in two cultures

Four experiments provided support for the hypothesis that upon making a choice, individuals justify their choice in order to eliminate doubts about culturally sanctioned aspects of the self, namely, competence and efficacy in North America and positive appraisal by other people in Japan. Japanese participants justified their choice (by increasing liking for chosen items and decreasing liking for rejected items) in the standard free-choice dissonance paradigm only when self-relevant others were primed, either by questionnaires (Studies 1-3) or by incidental exposure to schematic faces (Study 4). In the absence of these social cues, Japanese participants showed no dissonance effect. In contrast, European Americans justified their choices regardless of the social-cue manipulations. Implications for cognitive dissonance theory are discussed.     

The Validity of “Mini” Simulations for Mexican Retail Salespeople

The use of mini role play simulations was proposed as a means of collecting predictor data in a low-cost, time-efficient, and reliable manner. Mini role play simulations were developed for the purpose of measuring sales ability. In order to evaluate the efficacy of using the mini role play simulations, a concurrent validation study was conducted with 94 salespeople from a large, Mexican retail chain. Results indicated that the simulations significantly predicted performance and also added to the prediction of performance after controlling for a biodata instrument.     

How Children Determine the Size of 3D Structures: Investigating Factors Influencing Strategy Choice

This study explores changes in students’ strategies as they solve different types of volume problems. Fifth graders were presented with pictures showing 3D objects and a unit cube; they determined how many cubes made up the object and explained their responses. We examined whether children transferred strategies across problem types, varying in terms of (a) availability of grids that divided objects into individual unit cubes, (b) order of items, (c) object shape, and (d) availability of the unit cube. Children's strategy choices varied systematically with object and task characteristics. They were more likely to use conceptually appropriate strategies when presented with grids. With non-gridded objects, they were more likely to treat a 3D object as a collection of 2D faces. Presenting gridded items first increased the use of conceptually appropriate strategies on the non-gridded items. We discuss findings in the context of Siegler's theory of strategy choice and address educational implications.