Grammaticality,Acceptability, and Probability: A Probabilistic View of Linguistic Knowledge

The question of whether humans represent grammatical knowledge as a binary condition on membership in a set of well‐formed sentences, or as a probabilistic property has been the subject of debate among linguists, psychologists, and cognitive scientists for many decades. Acceptability judgments present a serious problem for both classical binary and probabilistic theories of grammaticality. These judgements are gradient in nature, and so cannot be directly accommodated in a binary formal grammar. However, it is also not possible to simply reduce acceptability to probability. The acceptability of a sentence is not the same as the likelihood of its occurrence, which is, in part, determined by factors like sentence length and lexical frequency. In this paper, we present the results of a set of large‐scale experiments using crowd‐sourced acceptability judgments that demonstrate gradience to be a pervasive feature in acceptability judgments. We then show how one can predict acceptability judgments on the basis of probability by augmenting probabilistic language models with an acceptability measure. This is a function that normalizes probability values to eliminate the confounding factors of length and lexical frequency. We describe a sequence of modeling experiments with unsupervised language models drawn from state‐of‐the‐art machine learning methods in natural language processing. Several of these models achieve very encouraging levels of accuracy in the acceptability prediction task, as measured by the correlation between the acceptability measure scores and mean human acceptability values. We consider the relevance of these results to the debate on the nature of grammatical competence, and we argue that they support the view that linguistic knowledge can be intrinsically probabilistic.     

Reflection for learning in doctoral training: writing groups,academic writing proficiency and reflective practice

This literature review highlights the benefits of participating in a doctoral writing group, with specific emphasis on how these learning communities foster reflective practice skills development. In particular, this review proposes that the process of continuous peer feedback and discussion benefits students by helping them verbalise their internal reflective thinking, fostering reflective practice skills development through various authentic learning experiences. Consequently, this review highlights the importance of establishing and supporting doctoral writing groups to further develop doctoral students’ personal epistemology, growth and professional practice.     

Are three-sample tasks less sensitive than two-sample tasks? Memory effects in the testing of taste discrimination

In order to provide insights into why discrimination protocols with three stimuli sometimes tend to be less sensitive than protocols with two stimuli, two experiments were conducted. In these experiments, the relative effects of memory decay and memory interference were investigated. Both experiments involved purified water and/or solutions of low NaCl concentration. In Experiment 1, three protocols were compared: the traditional same-different test (Protocol 1), the same protocol with a rinse between the two samples (Protocol 2), and Protocol 2 with an added time delay between the first sample and the intermediate rinse (Protocol 3.) The decrease in measured d' values as time delay increased indicated that memory decay might be a factor for tests with three stimuli, such as the triangle method, rendering it less sensitive than tests with two stimuli, such as the same-different method. In Experiment 2, four protocols were compared: the traditional same-different test, the two-rinse same-different test, the triangle test, and what will be called duo same-different test. The experimental design allowed the individual consideration of memory decay and interference effects. From this last experiment, the substantial effect of memory interference was uncovered. Further experimentation will be necessary to estimate the exact relative effects of memory interference and memory decay.     

Parent-Child Interactions in Relation to Critical and Emotionally Overinvolved Expressed Emotion (EE): Is EE a Proxy for Behavior?

Expressed emotion measures, encompassing dimensions of criticism (CRIT), and emotional overinvolvement (EOI) are increasingly being used to assess the parent-child relationship in child clinical populations, despite the lack of studies assessing their validity. We examined the correspondence between CRIT, EOI, and parent-child interactions as observed by neutral coders in a sample of 252 clinic-referred children and adolescents, ages 7-17 years. We found support for the validity of the CRIT code, with high critical parents showing more antagonism, negativity, disgust, harshness, and less responsiveness, compared to parents who scored in the low or borderline ranges. In contrast, none of the observed behaviors were found to correspond with parental EOI, suggesting either that this construct lacks validity with juvenile samples or that behaviors that correspond to EOI are difficult to observe. We conclude that high parental CRIT can be used as an index of problematic parent-child interactions.     

Examining the State-Trait Anxiety Relationship: A Behavioural Genetic Approach

State and trait anxiety define different aspects of anxiety, and may represent environmentally and genetically mediated components of this phenotype. Furthermore their relationship, where trait anxiety is expressed through levels of state anxiety under threatening circumstances, may represent a process of interplay between a genetic vulnerability factor and an environmental stressor. To test these hypotheses, we explored genetic and environmental influences on measures of state and trait anxiety in a sample of 1058 twins (521 males and 537 females) aged 8–16. The results were consistent with these hypotheses. State anxiety is largely influenced by environmental factors in males and females whereas trait anxiety shows moderate genetic effects and substantial non-shared environment effects. Their association was accounted for by non-shared environmental effects, with modest genetic and shared environmental inputs. The implications of these results for vulnerability mechanisms involving stress reactivity on anxiety are discussed.     

The role of structural prediction in rapid syntactic analysis

A number of recent electrophysiological studies of sentence processing have shown that a subclass of syntactic violations elicits very rapid ERP responses, occurring within around 200 ms of the onset of the violation. Such findings raise the question of how it is possible to diagnose violations so quickly. This paper suggests that very rapid diagnosis of errors is possible specifically in situations where the diagnosis problem is tightly constrained by specific expectations generated before the critical word is presented. In an event-related potentials (ERP) study of visual sentence reading participants encountered violations of a word order constraint (...Max's of...) that has elicited early ERP responses in previous studies. Across conditions the illicit sequence was held constant, while sentence context was used to manipulate the expectation for a noun following the possessor Max's, by manipulating the possibility of ellipsis of the head noun. Results showed that the anterior negativity elicited by the word category violation was attenuated when the availability of ellipsis reduced the expectation for a noun in the position of the offending preposition of, with divergence between conditions starting around 200 ms after the onset of the violation. This suggests a role for structural expectations in accounting for very fast syntactic diagnosis processes.     

Going home: the complex effects of reunification on internalizing problems among children in foster care

When children in foster care are reunified with their families of origin they encounter changes that may influence their well-being in both positive and negative ways. We examined the effects of reunification among 218 children in foster care to test an integrative model of the effects of reunification using structural equation modeling. We hypothesized that reunification would exert indirect effects on subsequent child adjustment via changes in adverse life events, perceived social isolation, and mental health service utilization. Results indicated no direct effect of reunification on subsequent internalizing problems, but reunification was related to increased adverse life events that, in turn, were related to elevated symptoms. Second, reunification was negatively associated with mental health service use. Finally, reunification was associated with decreased child perceptions of social isolation. In summary, reunification with biological parents is associated with multiple environmental changes, with most but not all effects indicating negative consequences.     

Suicidal ideation and attempts in Norwegian police

Studies on suicide among police show inconsistent results, thereby contributing to considerable speculation regarding why police officers commit suicide. The present paper is the first nationwide study on suicidal ideation and attempts among police. 3,272 Norwegian police completed Paykel's Suicidal Feelings in the General Population questionnaire. Lifetime prevalence of specific questionnaire items ranged from 24% for the feeling that life was not worth living, 6.4% for having seriously considered suicide, and 0.7% for attempted suicide. Independent predictors of serious suicidal ideation were marital status, subjective health complaints, reality weakness, anxiety, and depression. Serious suicidal ideation was mainly attributed to personal and family problems.     

Dieting behavior in Norwegian adolescents

In a sample of Norwegian adolescents (n = 1117) 27, 4% of the girls and 9% of the boys reported that they were dieting. Using multiple regression analyses, we were able to predict 50% of girls dieting behavior and 24% of boys dieting behavior. Psychological concerns relating to weight and eating (WEC) as well as perceptions of feeling fatter than others were the only significant predictors of dieting in girls, whilst dieting in boys could also be predicted by their Body Mass Index. Dieting girls who scored high on the Weight and Eating Concerns Inventory were found to suffer constipation and binge eating attacks more often than other dieting girls. This was taken as an indication that these girls were at risk of developing an eating disorder.     

Political distrust,perceived threat,and intentions to engage in normative and violent collective action: A mixed-methods study

In three studies, we examined the role of distrust and perceived threat in intentions to engage in normative and violent non-normative collective action. A field-based qualitative study of 35 pro-democracy protestors during the 2019 Hong Kong Anti-Extradition protests revealed that perceived threat to Hong Kong values alongside distrust of political institutions spurred collective action engagement and support for defensive violent collection action. In Study 2, a questionnaire (N = 639) testing pro-democracy action intentions demonstrated direct paths on both normative and violent collective action intentions from distrust and threat. In Study 3 (N = 133), experimental trust and threat manipulations demonstrated a significant association between distrust and threat on violent collective action intentions and acceptance, and a significant interaction on acceptance of violent collective action. Our results reveal the importance of distrust and threat in attitudinal support for, and engagement in, collective action and their role in transitioning from non-violent to violent collective action.