Evaluating the predictive validity of the computerized comprehension task: comprehension predicts production

Until recently, the challenges inherent in measuring comprehension have impeded our ability to predict the course of language acquisition. The present research reports on a longitudinal assessment of the convergent and predictive validity of the MacArthur-Bates Communicative Development Inventories: Words and Gestures (CDI: WG; Fenson et al., 1994, 1993, 2007) and the Computerized Comprehension Task (CCT; Friend & Keplinger, 2003, 2008). The CDI: WG and the CCT evinced good convergent validity; however, the CCT better predicted subsequent parent reports of language production. Language sample data in the 3rd year confirm this finding: The CCT accounted for 24% of the variance in unique word use. These studies provide evidence for the utility of a behavior-based approach to predicting the course of language acquisition into production.     

Norms of assertion and communication in social networks

Epistemologists can be divided into two camps: those who think that nothing short of certainty or (subjective) probability 1 can warrant assertion and those who disagree with this claim. This paper addressed this issue by inquiring into the problem of setting the probability threshold required for assertion in such a way that that the social epistemic good is maximized, where the latter is taken to be the veritistic value in the sense of Goldman (Knowledge in a social world, 1999). We provide a Bayesian model of a test case involving a community of inquirers in a social network engaged in group deliberation regarding the truth or falsity of a proposition $p.$ p . Results obtained by means of computer simulation indicate that the certainty rule is optimal in the limit of inquiry and communication but that a lower threshold is preferable in less idealized cases.     

Autonomy,Experience, and Reflection. On a Neglected Aspect of Personal Autonomy

The aim of this paper is to suggest that a necessary condition of autonomy has not been sufficiently recognized in the literature: the capacity to critically reflect on one’s practical attitudes (desires, preferences, values, etc.) in the light of new experiences. It will be argued that most prominent accounts of autonomy—ahistorical as well as history-sensitive—have either altogether failed to recognize this condition or at least failed to give an explicit account of it.     

Dear Santa,do you have my brand? A study of the brand requests,awareness and request styles at Christmas time

This study examines brand awareness (preferences) and request styles (communication approaches) at Christmas of Australian children and adults. The study is founded in the growing Santa Claus literature that has examined various issues related to gift giving and request behaviour at Christmas time. The study is based on the content analysis of 422 letters written by children to Santa Claus. The results indicate that children are brand‐orientated in their request behaviour, adopt fairly meaningful request strategies and use visual imagery ie graphics in their communication strategies in their attempts to secure their requested gifts and specific brands. Copyright © 2002 Henry Stewart Publications Ltd.     

Fatty acid amide hydrolase (FAAH) knockout mice exhibit enhanced acquisition of an aversive, but not of an appetitive, Barnes maze task

It is well established that genetic deletion or pharmacological inhibition of the CB₁ receptor disrupts extinction learning in aversive conditioning tasks, but not in appetitive tasks. Consistent with these findings is that genetic deletion or pharmacological inhibition of fatty acid amide hydrolase (FAAH), the primary catabolic enzyme of the endogenous cannabinoid anandamide (AEA), accelerates acquisition as well as extinction in aversive conditioning tasks. However, it is unknown whether FAAH blockade will affect acquisition in an appetitive conditioning task. Therefore, in the present study, we assessed FAAH (−/−) and (+/+) mice in appetitive and aversive Barnes maze conditioning procedures. Here we report that FAAH (−/−) mice displayed accelerated acquisition rates in an aversively-motivated, but not in the appetitively-motivated, Barnes maze task. The CB₁ receptor antagonist, rimonabant attenuated enhanced acquisition in the aversive procedure, consistent with the idea that elevated AEA levels mediate this apparent nootropic effect. These findings support the hypothesis that stimulation of the endocannabinoid system enhances learned behavior in aversive, but not appetitive, conditioning paradigms.     

Relating social skills and social media use to consumer behavior: An investigation across the autism spectrum

In this study, we focus on the role of social functioning on consumer behavior, exploring social media use as a mediating factor. In order to facilitate our identification of social functioning competence as a factor, we increased the range by including a subgroup of respondents who identified themselves as being on the autism spectrum. Indeed, this group stood out as having difficulties in getting along with persons they interact with at school, at work and at home. We used these measures to define an individual differences index of social functioning that we call Quality of Social Functioning (QoSF). In a preliminary report, we showed that this index was predictive of social media use and its influence, with those scoring higher reacting more favorably and utilizing more of its features. In the main study, we focused on the content of social media posts by providing photos of posts that depicted either group activities or individual activities. Those scoring lower on our index gave lower ratings of posts in general, but especially for those posts depicting group activities. Results are discussed in terms of the important role of social functioning in the use of social media and its content as a vehicle for informing consumer behavior. We describe how the results of our study and related studies can be used by marketers to improve the lives of especially vulnerable consumers.     

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Positive Automatic Cognitions Mediate the Relationship Between Personality and Trait Positive Affect

Positive affect (PA) has emerged as a key well-being facet and a powerful predictor of physical and psychological well-being. One of the strongest predictors of PA is personality, particularly neuroticism and extraversion. However, the mechanisms via which personality affects PA are not well-understood. Consistent with theories that accord cognitive factors a role in mediating the relationship between personality and outcomes, we tested whether positive automatic thoughts (PATs) mediated the relationship between neuroticism, extraversion, and PA among 199 college students (137 women, 70% White, 66% first and second year students, mean age = 24.13, SD = 8.86). Consistent with hypotheses, structural equation modeling indicated that PATs fully mediated the relationship between both neuroticism and extraversion and PA. The structural model fit the data well, χ²/df = 2.33, CFI = .96, SRMR = .07, RMSEA = .08 (90% CI: .06, .10), AIC = 172.45, and accounted for 58% of the variance in PA. An alternative model in which personality predicted PA, which in turn predicted PATs, did not provide as good a fit to the data, χ²/df = 3.03, CFI = .94, SRMR = .09, RMSEA = .10 (90% CI: .08, .12), AIC = 207.40. Models in which negative automatic thoughts (NATs) were construed as fully [χ²/df = 4.46, CFI = .95, SRMR = .08, RMSEA = .13 (90% CI: .11, .16)] or partially [χ²/df = 4.04, CFI = .96, SRMR = .06, RMSEA = .12 (90% CI: .10, .15)] mediating the relationship between neuroticism and negative affect did not provide a good fit to the data. A final model in which negative affect was tested a mediator of the relationship between neuroticism and NATs also did not fit the data well, χ²/df = 4.03, CFI = .96, SRMR = .07, RMSEA = .12 (90% CI: .10, .15).