EFFECTS OF NONCONTINGENT MUSIC ON VOCAL STEREOTYPY AND TOY MANIPULATION IN CHILDREN WITH AUTISM SPECTRUM DISORDERS

Noncontingent music has been shown to reduce engagement in vocal stereotypy in children with autism spectrum disorders, but its effects on appropriate collateral behavior remain unknown. Given that noncontingent music is typically implemented during periods of free play, clinicians may be concerned with the effects of the intervention on toy manipulation. Thus, we examined the immediate and subsequent effects of noncontingent music on engagement in vocal stereotypy and toy manipulation in four children with autism spectrum disorders by using a three‐component multiple schedule combined with a multi‐element design. The results suggest that noncontingent music (i) reduced immediate engagement in vocal stereotypy for three of four participants, (ii) never increased subsequent engagement in vocal stereotypy, and (iii) produced idiosyncratic effects on immediate and subsequent engagement in toy manipulation for two participants. The clinical implications of the results are discussed in terms of improving the treatment of vocal stereotypy using noncontingent music. Copyright © 2012 John Wiley & Sons, Ltd.     

Development of decision making: sequential versus integrative rules

Decisions can be made by applying a variety of decision-making rules-sequential rules in which decisions are based on a sequential evaluation of choice dimensions and the integrative normative rule in which decisions are based on an integration of choice dimensions. In this study, we investigated the developmental trajectory of such decision-making rules. In the Gambling Machine Task, participants choose between options that differ in three dimensions: frequency of loss, amount of loss, and certain gain. The task was administered to 231 children and adolescents (age range=8-17 years). Latent group analysis of their performance allowed precise classification of the underlying decision rules. The majority of participants used sequential decision rules, and the number of evaluated dimensions in these rules increased with age. Integrative rule use decreased with age. We discuss these results in light of traditional developmental theories and fuzzy trace theory.     

Hierarchical integration of agency and communion: a study of influential moral figures

The purpose of this research is to (a) identify which of recent history's influential figures did and which did not personify moral excellence, and (b) to examine the motives that drove these individuals along such divergent paths. In Study 1, 102 social scientists evaluated the moral qualities of influential figures from Time Magazine's lists. In Study 2, we selected the 15 top ranking of these figures to comprise a moral exemplar group and the bottom 15 to comprise a comparison group of similarly influential people. We measured the motivational aspects of their personality (agency and communion) by content-analyzing extant speeches and interviews. Moral exemplars exhibited the hierarchical integration of agency and communion by treating agentic motives as a means to an end of communal motives. Comparison subjects, by contrast, personified unmitigated agency by treating motives of agency as both a means to an end and an end unto itself. These results imply that both the strength and structure of a person's motives account for moral behavior.     

Reducing reliance on inaccurate information

People learn from the texts that they read, but sometimes what they read is wrong. Previous research has demonstrated that individuals encode even obvious inaccuracies, at times relying on the misinformation to complete postreading tasks. In the present study, we investigated whether the influence of inaccurate information might be reduced by encouraging the retrieval of accurate knowledge. Participants read an extended text that contained both accurate and inaccurate assertions, after which they evaluated the validity of statements associated with those assertions. In general, participants made more mistakes in their evaluations of statements after having read inaccurate as compared to accurate assertions, offering evidence of the influence of misinformation. However, when participants were tasked with correcting inaccuracies during reading, their mistakes were substantially reduced. Encouraging the retrieval of accurate knowledge during reading can reduce the influence of misinformation. These findings are discussed with respect to the contributions of episodic traces and prior knowledge on learning, as well as to the conditions that support successful comprehension.     

Pilgrims sailing the Titanic: Plausibility effects on memory for misinformation

People rely on information they read even when it is inaccurate (Marsh, Meade, & Roediger, Journal of Memory and Language 49:519–536, 2003), but how ubiquitous is this phenomenon? In two experiments, we investigated whether this tendency to encode and rely on inaccuracies from text might be influenced by the plausibility of misinformation. In Experiment 1, we presented stories containing inaccurate plausible statements (e.g., “The Pilgrims’ ship was the Godspeed”), inaccurate implausible statements (e.g., . . . the Titanic), or accurate statements (e.g., . . . the Mayflower). On a subsequent test of general knowledge, participants relied significantly less on implausible than on plausible inaccuracies from the texts but continued to rely on accurate information. In Experiment 2, we replicated these results with the addition of a think-aloud procedure to elicit information about readers’ noticing and evaluative processes for plausible and implausible misinformation. Participants indicated more skepticism and less acceptance of implausible than of plausible inaccuracies. In contrast, they often failed to notice, completely ignored, and at times even explicitly accepted the misinformation provided by plausible lures. These results offer insight into the conditions under which reliance on inaccurate information occurs and suggest potential mechanisms that may underlie reported misinformation effects.     

Fool Me Twice: The Consequences of Reading (and Rereading) Inaccurate Information

Readers frequently encounter inaccuracies in texts that contradict what they should know to be true. The current project examined readers' moment‐by‐moment processing of inaccuracies and whether any difficulty with such material is reduced when readers are already familiar with accurate versions of that content. In two experiments, participants read stories that either accurately or inaccurately described the outcome of a well‐known historic event. Preceding story contexts supported accurate outcomes or introduced suspense to create uncertainty about outcome likelihoods. During initial readings, participants took longer to read inaccurate than accurate outcomes. But this difficulty was substantially reduced when suspenseful contexts called into question the likelihood of well‐known outcomes. Similar reading patterns emerged when participants read the exact same material after week‐long and 5‐minute delays. These results indicate that biasing contexts can influence readers' processing of inaccuracies for even familiar events. Rereading proves insufficient for encouraging reliance on accurate prior knowledge. Copyright © 2014 John Wiley & Sons, Ltd.     

Development of Mathematical Knowledge in Young Children: Attentional Skill and the Use of Inversion

The principle of inversion, that a + b ? b must equal a, is a fundamental property of arithmetic, but many children fail to apply it in symbolic contexts through 10 years of age. We explore three hypotheses relating to the use of inversion that stem from a model proposed by Siegler and Araya (2005 Siegler , R. S. , &; Araya , R. ( 2005 ). A computational model of conscious and unconscious strategy discovery . In R. V. Kail (Ed.), Advances in child development and behavior (pp. 1 – 42 ). New York , NY : Elsevier .[Crossref] , [Google Scholar]). Hypothesis 1 is that greater calculational skill is related to greater use of inversion. Hypothesis 2 is that greater attentional skill is related to greater use of inversion. Hypothesis 3 is that the relation between attentional skill and the use of inversion is particularly strong among children with high skill in calculation. We found suggestive evidence for Hypothesis 2 and clear evidence for Hypothesis 3, indicating that for children who are strong at calculation, attentional flexibility is related to use of inversion.     

Application of multiple baseline designs in behavior analytic research: Evidence for the influence of new guidelines

The multiple baseline (MBL) design is a single‐case experimental design that has both research and applied utility. Although the concurrent and nonconcurrent MBL variants are valid designs, each rules out different threats to internal validity. To help clarify these differences, studies have provided guidelines for graphically depicting and distinguishing between concurrent and nonconcurrent MBLs. This study assessed the extent to which data‐presentation guidelines have been adopted by examining single‐case experimental design studies published in 3 behavior‐analytic journals from 2000 to 2015. Results suggest that data‐depiction guidelines have increased correct identification of concurrent multiple baseline designs but also indicate that these guidelines have not been universally adopted.     

Examining Psychosocial Pathways Underlying Gratitude Interventions: A Randomized Controlled Trial

Despite their unprecedented popularity, the psychological mechanisms through which gratitude journals operate are poorly understood. Also the use of gratitude journaling to enhance social relationships has been neglected in past research, despite the importance of healthy relationships for people’s happiness. This randomized controlled study examined the effect of (a) a traditional gratitude journal (fostering gratitude for daily life), and (b) an interpersonal gratitude journal (fostering gratitude for one’s existing social relationships), versus (c) an active control journal, on life satisfaction. Ninety-one participants were randomized to one of three conditions with 2-week and 1-month follow-ups. The traditional gratitude intervention (vs. control) showed improvements in friendship at immediate post-test and 1-month follow-up, and these effects were accounted for by changes in gratitude over time. Additionally, the traditional gratitude intervention (vs. control) predicted enhanced life satisfaction at follow-up, and this was serially mediated by 6 week changes in gratitude and perceived friendship quality. No such differences over time were observed between the interpersonal gratitude intervention and either the control intervention or the traditional gratitude intervention. Actively appreciating things in daily life appears to be effective in enhancing the quality of people’s social relationships, and producing sustained improvements in subjective wellbeing.