The concept of parsimony in factor analysis

The concept of parsimony in factor analysis is discussed. Arguments are advanced to show that this concept bears an analogic relationship to entropy in statistical mechanics and information in communication theory. A formal explication of the term parsimony is proposed which suggests approaches to the final resolution of the rotational problem. This paper provides the rationale underlying Carroll's (2) analytical solution for approximating simple structure, and the solutions of Saunders (7) and Neuhaus and Wrigley (5).     

Reappraisal Buffers the Association Between Stress and Negative Mood Measured Over 14 Days: Implications for Understanding Psychological Resilience

Reappraisal is thought to be an adaptive emotion regulation strategy, and research suggests that individuals who habitually reappraise report more positive patterns of affect overall. However, some experimental studies indicate that a greater tendency to reappraise can exacerbate stress response, and it is unclear whether reappraisal confers resilience or exacerbates response to naturally occurring stressors. In order to address this, the present study investigated whether reappraisal prospectively moderated the association between daily stressors and daily negative mood measured over 14 days. Participants (n = 236) completed a measure of reappraisal at baseline, before completing daily online entries of stress and positive and negative mood. Data were analysed using multilevel modelling. Results suggested that reappraisal moderated the association between stress and negative mood, such that higher levels of reappraisal were associated with lower levels of negative mood in response to stress. Moreover, higher reappraisal was also independently associated with lower levels of daily negative mood and higher levels of positive mood. These results suggest that higher reappraisal may confer resilience to stress. Copyright © 2016 European Association of Personality Psychology     

The quality of sucking in infants with colic

Feeding problems have been reported in infants with colic. The purpose of this study was to examine the nutritive sucking pattern of infants identified as having colic. Twenty-nine infants (16 with colic and 13 controls) between the ages of 1 to 3 months, being bottle-fed by their mothers, were observed by a blind examiner. We hypothesized that infants with colic would show greater disorganization in nutritive sucking and show greater variability in sucking rate than infants without colic, as assessed by the revised Neonatal Oral Motor Assessment Scale (NOMAS). Infants with colic were found to present a disorganized sucking pattern; namely, a lack of rhythmical movement and a difference in amount of sucks per burst than infants without colic. Methods of intervention are suggested.     

The profile of abstract rule learning in infancy: Meta‐analytic and experimental evidence

Everyone agrees that infants possess general mechanisms for learning about the world, but the existence and operation of more specialized mechanisms is controversial. One mechanism—rule learning—has been proposed as potentially specific to speech, based on findings that 7‐month‐olds can learn abstract repetition rules from spoken syllables (e.g. ABB patterns: wo‐fe‐fe, ga‐tu‐tu…) but not from closely matched stimuli, such as tones. Subsequent work has shown that learning of abstract patterns is not simply specific to speech. However, we still lack a parsimonious explanation to tie together the diverse, messy, and occasionally contradictory findings in that literature. We took two routes to creating a new profile of rule learning: meta‐analysis of 20 prior reports on infants’ learning of abstract repetition rules (including 1,318 infants in 63 experiments total), and an experiment on learning of such rules from a natural, non‐speech communicative signal. These complementary approaches revealed that infants were most likely to learn abstract patterns from meaningful stimuli. We argue that the ability to detect and generalize simple patterns supports learning across domains in infancy but chiefly when the signal is meaningfully relevant to infants’ experience with sounds, objects, language, and people.     

Trait anger,neuroticism, and the hostile reaction to provocation: examining the hierarchical organization of affective traits in context

It has been suggested that the broad trait of neuroticism may predict the tendency to become aggressive when provoked. Based on functionalist theories of emotion, however, we suspected that only the more specific trait of anger would predict such tendencies. To test these competing predictions, two laboratory studies and one daily diary study were conducted. Consistent with functionalist accounts, trait anger consistently predicted the angry emotional and aggressive behavioral response to provocation, even after controlling for neuroticism. This was true in relation to laboratory-based provocations and in provocations experienced in daily life. Neuroticism only predicted a more diverse negative emotional reaction. It is therefore proposed that trait anger clearly elicits an angry emotional response, which directly motivates aggressive behavior. By contrast, neuroticism may lead to a very diverse reaction which elicits different and even contradictory behavioral tendencies.     

Differences in Paradox between Islam and Christianity: a statistical comparison

Historically Islam has been recognized as a religion that is logical. Christianity has long been recognized as having a number of beliefs or doctrines that could be described as paradoxical. Sixty-nine religious doctrines or beliefs were evaluated for paradoxical content and in terms of whether Islam and Christianity agreed or disagreed with respect to each doctrine or belief. It was hypothesized that disagreement between the two religions would be much more common with respect to paradoxical doctrines or beliefs. Nearly 90% of doctrinal agreement or disagreement could be traced to the paradoxical or non-paradoxical content of the beliefs evaluated. The relationship between agreement and paradox was very significant statistically. Implications for future Christian–Muslim dialogue are discussed.     

Death anxiety and sexual risk-taking: different manifestations of the process of defense

College students(n = 162) completed measures of death anxiety and sexual risk-taking, with a thought listing procedure in-between. Those who completed the death anxiety measure first (Death Salient condition) reportedgreater willingness to engage in high-risk sexual behavior than the Non-Death Salient group. This result was consistent with the hypothesis that evoking death anxiety would produce denial-based defensive activity. Also, Death Salient participants reporting more death thoughts were lower on risk-taking, as predicted. Interestingly, Death Salient participants reporting stressful thoughts about issues unrelated to personal mortality (displacement) were also less willing to engage in high-risk sexual behavior. The results are discussed in relation to a new, avowal-based model of the process of psychological defense.