The Specificity of the Interpersonal‐Psychological Theory of Suicidal Behavior for Identifying Suicidal Ideation in an Online Sample

The interpersonal‐psychological theory of suicidal behavior suggests that the combination of perceived burdensomeness and thwarted belongingness predicts suicidal ideation. However, the specificity of this prediction to suicidal ideation has not been tested. This study examined whether these constructs were consistently associated with different characteristics of suicidal ideation, and whether they were associated with mental health problems more broadly, in an online sample of 1,352 Australian adults. Findings indicated that the interaction between perceived burdensomeness and thwarted belongingness was associated only with suicidal ideation and consistent across multiple characteristics of ideation. The study broadly supported the specificity of the IPTS.     

TO NOD OR NOT TO NOD: AN OBSERVATIONAL STUDY OF NONVERBAL COMMUNICATION AND STATUS IN FEMALE AND MALE COLLEGE STUDENTS

Gender studies show that women and men communicate using different styles, but may use either gender style if there are situational status differences. Considering the universal gesture of head nodding as a submissive form of expression, this study investigated head nodding by observing female and male college students in positions of subordinate and equal status. We observed head nodding ( N = 452) in classroom interactions between professor–student and student–student dyads. Overall, women nodded more than men and students nodded more to professors speaking than peers speaking. In addition, female and male students nodded equally to professors speaking, but men nodded less to peers speaking than did women. Thus, both men and women attended to the status and not the gender of the speaker. Future research using varying contexts should further examine the effects of dominance, context, and gender.     

Individual Participation in Organizational Information Commons

This research extended earlier public goods research on individual incentives to use an organizational information commons that was based in Marwell and Oliver's (1993) collective action model. A revised theoretical model that incorporated team‐level social influence and technology‐specific competence was proposed. The model was tested using online survey data from 150 individuals in 13 work groups across 5 organizations. The research demonstrated that perceived team member behavior and technology‐specific competence were positively related to individual use of intranets, over and above the collective level influences modeled in earlier research. These findings supported a more “socialized” model of individuals' motivations to participate in organizational information sharing via collective repositories and suggested that management could boost levels of intranet usage through group level social influence and technology‐specific training.     

The Suicidal Ideation Attributes Scale (SIDAS): Community‐Based Validation Study of a New Scale for the Measurement of Suicidal Ideation

While suicide prevention efforts are increasingly being delivered using technology, no scales have been developed specifically for web‐based use. The Suicidal Ideation Attributes Scale (SIDAS) was developed and validated as a brief, web‐based measure for severity of suicidal ideation, using an online survey of Australian adults (n = 1,352). The SIDAS demonstrated high internal consistency and good convergent validity. Frequency and controllability of thoughts were more strongly associated with suicide plans and attempts than other attributes assessed. Scores ≥ 21 indicated high risk of suicide behavior. The SIDAS appears to be a valid web‐based measure for severity of suicidal ideation.     

Sensorimotor influences on speech perception in pre-babbling infants: Replication and extension of Bruderer et al. (2015)

Psychonomic Bulletin & Review - The relationship between speech perception and production is central to understanding language processing, yet remains under debate, particularly in early...     

Prevalence and predictors of expulsion in home-based child care settings

This study explored the prevalence of expulsion in home-based child care (HBCC) settings using a nationally representative sample of HBCC providers from the National Survey of Early Care and Education. In addition to prevalence, enrollment and provider characteristics that predicted expulsion were examined. Although there is increasing awareness of the prevalence of early childhood suspension and expulsion in early care and education settings and the negative effects it has on children's development, few studies have included or focused on HBCC, where many children receive care. This study highlights that many home-based providers, especially listed providers, report that they expelled at least one child within the last year. Significant predictors of expulsion emerged, including enrollment characteristics such as caring for children with disabilities, enrolling more children, and caring for children unrelated to the provider. Provider characteristics, including years of experience, provider education, and provider age, also predicted provider report of expulsion. These results provide insight as to possible strategies that may be effective in reducing expulsion rates in this caregiving context.