Assessment of the effects of brief separation from parent on infants

The purpose of the study was to answer 2 questions: (1) are children 12 to 24 months old able to interpret their parents' accessibility on the basis of previous separation, and (2) how long do the effects of a brief, experimental separation last? 20 children were observed with their parents for 3 min, were then left alone for 3 min, and were observed for 3 min following reunion; as controls 19 children stayed with their parents for 9 min. The children were later observed after 1 or 2 weeks, this time they were free to separate themselves from their parents in order to explore an adjoining room. Observations were made by scoring predefined behavior measures from videotape. Results showed effects 1, but not 2 weeks after separation, and suggest that separation chiefly affects behaviors which involve confidence in parents' physical accessibility.     

Is there an optimal factor structure of the Positive and Negative Syndrome Scale in patients with first‐episode psychosis?

The Positive and Negative Syndrome Scale (PANSS) is the most widely used scale to assess a variety of symptoms in patients with schizophrenia and other psychoses. The factor structure of the PANSS has been examined with confirmatory factor analyses in several studies, but not in a well‐defined first‐episode psychosis sample. The aim of this paper is to examine the statistical fit of five different PANSS models in a first‐episode, non‐affective psychosis sample. Confirmatory factor analyses were performed on PANSS data (n = 588). A main criterion for best fit was defined as the Expected Cross Validation Index (ECVI). No tested model revealed an optimally satisfactory model fit index. The Wallwork/Fortgang five‐factor model demonstrated the most optimal psychometric properties. The corresponding subscales of all evaluated five‐factor models were strongly intercorrelated. The Wallwork/Fortgang five‐factor model was found to be statistically and clinically ideal among patients with first‐episode psychosis. Therefore, we recommend this model in forthcoming studies among patients with first‐episode psychosis. However, to prevent the loss of clinically valuable information on an item level, we do not recommend removing any items from the original form. Our study also implies that the specific choice of model will not have a substantial effect on outcome results in studies on the course and outcome in first‐episode psychosis.     

Cognitive processes among skilled miniature golf players: Effects of instructions on motor performance, concentration time, and perceived difficulty

Highly skilled miniature golf players were examined on a simplified miniature golf task under different instructional conditions. Results indicated that requirements to attend to a variety of technical aspects of the game during preparation impaired motor performance, whereas providing players with those aspects of the game they reported thinking of did not affect motor performance. Data on concentration time and perceived difficulty indicated that increasing cognitive demands were associated with a decline in motor precision. The overall pattern of results was interpreted such that attention directed at technical aspects of the game interfered with the players' normal cognitive activity. Susceptibility to interference is a characteristic feature of controlled cognitive operations. Thus, the present results are consistent with the view that conscious cognitive activity may support motor behavior also at late stages of skill development.     

Parents' education and mean change in intelligence

Bergman, L. R. Parents' education and mean change in intelligence. Scand. J. Psychol., 1973, 14, 273–281.-For 815 Swedish school children aged 9 in 1965, mean changes between 9 and 12 years are studied for Verbal Comprehension, Inductive ability, Spatial ability, and General Intelligence. Controlling for the initial values, children coming from educated homes tend to obtain larger positive changes than children coming from less educated homes. These differences are largest for boys, and in Verbal Comprehension. A comparison with other Swedish samples suggests that the present sample may be reasonably representative of many Swedish urban populations with regard to the problem under study.     

The behavior of young children in a strange situation

Abstract. The social behavior of young children was assessed in a strange situation which was to become increasingly more stressful. The strange-situation procedure reported by Ainsworth & Wittig (1969) was repeated as closely as possible. Children between 1 and 1¹/₂ years were accompanied by their mothers or by a female stranger in various combinations, or were alone, according to a prearranged sequence. The data were subjected to a commonality analysis (Masters & Wellman, 1974). Common changes in the frequencies of 20 behavior items were noted across the different episodes. The physicaldistance relationship between the child and its companion, the exploratory behavior of the child, and individual differences among the children were analyzed in light of Bowlby's attachment theory. The results gave some support to the findings reported by Ainsworth and her group, but also pointed to functional differences between the behavior items examined. The results on crying were compared with those of Ainsworth & Wittig (1969), showing a fair degree of agreement. Finally, the subjects were divided into groups according to an operationalization of the criteria given by Ainsworth et al. (1971). Often children, only three could unequivocally be placed in one of eight groups. This suggests that it may be difficult to use the group characterization proposed by Ainsworth et al.     

"I would do anything for my child, even quit tobacco": Bonus effects from an intervention that targets adolescent tobacco use

This paper aims to assess program bonus effects on adult tobacco use from a long-term intervention that targeted adolescent tobacco use. The school-based community intervention started in Västerbotten County in Sweden in 1993 and adults were invited to support adolescents to stay tobacco-free. It was combined with repeated cross-sectional surveys in schools annually 1994–99 among grades 7–9 and after 1999 every second year. Participating schools were randomly selected before the first survey representing both rural and urban settings. Out of 4,055 students, 1,008 (24.8%) reported that their supporting adult had been a tobacco user who quit tobacco in order to be allowed to participate. Out of these, 13.2% used tobacco daily before joining. The remaining 2,997 students' adult partners were not tobacco users. Engaging tobacco using adults as partners in interventions targeting adolescent tobacco use seem to have a considerable tobacco-reducing bonus effect in the adults.     

Relationship control and interpersonal perception in marriage

The correlation between married couples' interpersonal perception and relationship control in communication was investigated. A normated, standardized and shortened version of Laing et al. 's Interpersonal Perception method (IPM) was used to measure interpersonal perception. The test contain three levels of perception, namely (1) direct perception of the relationship, (2) misunderstandings, and (3) disagreements about the relationship. The couples' relationship control was observed in three different situations. Previous studies have found the amount of one-upmanship in married couples to be associated with problems of interpersonal perception. Although different methods were applied in the present study, this finding was replicated to some extent. Additionally, the results indicate that the more the couples communicated to each other that they both had the right to control the relationship, the less problems they had in interpersonal perception. The results also strongly suggest that couples communicating in egocentric and self-disqualifying ways perceive their marriage as less satisfying, and they also perceive each other's feelings and behaviours less accurately than those who have little or no such deviant communication.     

A cross-cultural study of personality: Swedish and English children

Five hundred and thirty-one Swedish boys and 559 Swedish girls completed the Junior Eysenck Personality Questionnaire (J.EPQ) translated into Swedish by the authors (A.-L.v.K. and L.v.K.). Factor comparisons indicated virtually identical factors of Psychoticism (P) Extraversion (E), Neuroticism (N) and social desirability—Lie (L)—in Sweden as in England. Slight item additions produced scales with adequate reliabilities. Sex differences were in line with most studies, i.e. boys scoring higher than girlson Psychoticism (P) but lower on Neuroticism (N) and Lie (L). Finally, the only significant cross-cultural difference between Swedish and Engish children proved to be on Neuroticism (N) where the Swedish children had much lower scores than the English children.