Latent roots of random data correlation matrices with squared multiple correlations on the diagonal: A monte carlo study

In order to make the parallel analysis criterion for determining the number of factors easy to use, regression equations for predicting the logarithms of the latent roots of random correlation matrices, with squared multiple correlations on the diagonal, are presented. The correlation matrices were derived from distributions of normally distributed random numbers. The independent variables are log (N–1) and log {[n(n–1)/2]–[(i–1)n]}, whereN is the number of observations;n, the number of variables; andi, the ordinal position of the eigenvalue. The results were excellent, with multiple correlation coefficients ranging from .9948 to .9992.This research was supported by the Office of Naval Research under Contract N00014-67-A-0305-0012, Lloyd G. Humphreys, principal investigator, and by the Department of Computer Science of which Richard G. Montanelli, Jr., is a member.     

Property

This paper first reviews material dealing with the question of whether possession and related behaviours are innately determined or secondary. It is considered that the significance of property-related behaviour can best be understood by reference to its ontogenesis, and to the social context, and to the intentions of the actor. Some relevant material is reviewed, and it is proposed that some forms of acquisition and possession of property may be limited to societies with a high degree of role flexibility and mobility and have to do with the building and maintenance of self-respect.     

Further examinations of the category-recall function

Subjects were assigned to use either three or six categories and were given either 5 or 10 trials in a word-sorting task. Subsequent to sorting, they recalled as many words as they could. A measure of sorting consistency showed that the six-category sort was a more difficult task than was the three-category sort. Number of categories did not have a significant effect on recall performance regardless of whether 5 or 10 sorting trials were used. A correlational analysis raised questions about the relationship of the sorting tasks to recall performance and clustering.     

The sex by race interaction in cognitive measures

Data consisting of 79 cognitive measures from Project TALENT for 100,000 white and black high school students have been analyzed for possible race by sex interactions. Control variables included geographical area, grade in high school, and socio-economic class. Race by sex interactions are largest when socioeconomic class is controlled and are highly related to the size of the main effect of sex as well. White boys and girls differ more than black boys and girls whether the overall sex difference favors males or females. Sex by grade and, to a lesser extent, sex by area interactions were also moderately large and consistent with the size of the main effect of sex. Since there are no consistent relationships with other main effects, and since the measures producing sex differences also tend to produce the interactions, it is concluded that sex differences and the interactions with sex share the same causes. Differences between these results and those of Jensen are also discussed.     

The role of two emotion regulation tendencies across two waiting periods

Motivation and Emotion - The distress associated with uncertainty differs in important ways from distress over clear and present stressors. Emotion regulation (ER) tendencies—namely...     

Adverse caregiving in early life: The trauma and deprivation distinction in young children

Knowledge and understanding about the impact of cumulative adverse experiences on the health and wellbeing of children, adolescents, and adults has rapidly expanded over the past 30 years. Despite the invaluable attention and support this proliferation has drawn to the importance of early childhood experiences, we believe that it is time to move beyond broad indices of risk and toward more specific and individualized understanding of how risk exposures are linked to clinical outcomes in young children. Within infant and early childhood mental health, there is a need for greater specificity in linking adverse caregiving experiences in early life to psychopathology in children. We highlight a framework distinguishing experiences of trauma from experiences of deprivation and use the examples of posttraumatic stress disorder and reactive attachment disorder to demonstrate how greater specificity in our understanding of early adverse caregiving can lead to more accurate and targeted diagnosis and treatment for young children. Both researchers and clinicians benefit from an approach to gain a greater appreciation of the links between specific types of experiences and outcomes in the children that we serve.     

Constant Time Delay and System of Least Prompts: Efficiency and Child Preference

Prompting procedures are effective for teaching skills, but limited comparative data exist to guide practitioners to select the best procedures for individuals. This study compared efficiency of two prompting procedures—constant time delay (CTD) and system of least prompts (SLP)—to teach expressive identification of 32 targets to 10 preschoolers with and without disabilities. To assess efficiency differences between conditions and analyze changes in learning over time, we used adapted alternating treatments designs in the measurement context of cumulative records. CTD was more efficient for five children, SLP was more efficient for three children, and results were inconclusive for two children. We measured children’s choices between procedures via simultaneous treatments designs, to assess child preference and whether preferences and efficiency aligned. Preference outcomes were mixed and did not consistently align with efficiency. We used exploratory analyses to assess whether child characteristics moderated outcomes. Children for whom CTD was more efficient had significantly fewer sessions to mastery, non-significantly fewer errors, and non-significantly higher developmental assessment scores, compared to children for whom SLP was more efficient.

     

A Single-Session Workshop to Enhance Emotional Awareness and Emotion Regulation for Graduate Students: A Pilot Study

Emerging adults are at substantial risk for developing or worsening psychopathology and university students appear to be particularly vulnerable. Interventions targeted at these young adults that can mitigate transdiagnostic causal risk factors or burgeoning mental health problems have the potential to make a large impact. We aimed to develop and pilot test an accessible, single-session, transdiagnostic group intervention with the goals of enhancing emotion regulation skills and reducing risk for mental health problems in graduate students. The intervention included psychoeducation, skills instruction (e.g., mindful emotion awareness, cognitive flexibility, countering emotion-driven behaviors), group discussion, and supervised practice based on content from the Unified Protocol for Transdiagnostic Treatment of Emotional Disorders. The pilot program demonstrated strong feasibility and acceptability. Baseline, 1-month, and 3-month follow-up surveys also suggested benefits for reducing emotional avoidance and suppression, increasing use of cognitive reappraisal, and reducing symptoms of depression and neuroticism. Graduate students have seldom been the beneficiaries of university-based intervention and prevention research. Furthermore, most college and university mental health centers do not have the capacity to provide psychoeducation, preventative, or early intervention services to the many students who need or could benefit from them. Results suggest that future iterations of this intervention could address such barriers to meaningfully supporting emerging adults in graduate school.     

Affect and emotions in placebo and nocebo effects: What do we know so far?

Once considered nuisance variance in clinical trials, placebo effects and nocebo effects are now widely recognized as important and mutable psychobiological contributors to mental and physical health. Psychological theory explaining these effects emphasizes associative learning and conscious expectations. It has long been suggested, however, that affective states such as moods, emotions, and distress could play a significant role. In this paper, we draw together and review the empirical data linking affective states to placebo and nocebo effects. To organize this disparate literature, three questions are addressed: (1) Does pre‐existing state and trait affect modulate placebo and nocebo effects? (2) Does administering placebo and nocebo treatments change affective states, and if so, does the resulting affect causally influence placebo and nocebo effects? Finally, (3) Can placebo treatments be successfully employed as a regulation strategy to modulate different affective states? In reviewing the evidence in relation to these three questions, it is clear that affect does play a key role in placebo and nocebo effects in many circumstances, and further, there may be a reciprocal dynamic at play between a treatment event, affect, and placebo/nocebo effects. The paper concludes by discussing implications for theory and intervention and recommends future research priorities.