SINDSCAL source weight transformations are not always necessary or desirable: reply to Hodgkinson

Hodgkinson (1998) argues that we should have transformed the SINDSCAL source weights we used for an analysis presented on page 15 of our paper on the judgement of HIV cases (Irwin, Jones, and Mundo, 1996). In this reply we present theoretical and empirical arguments for why we did not transform the weights. Our statements are presented in the context of a more general discussion of how source weights should be interpreted and used. © 1998 John Wiley & Sons, Ltd.     

Prediction of toddlers’ expressive language from maternal sensitivity and toddlers’ anger expressions: A developmental perspective

Despite evidence for the importance of individual differences in expressive language during toddlerhood in predicting later literacy skills, few researchers have examined individual and contextual factors related to language abilities across the toddler years. Furthermore, a gap remains in the literature about the extent to which the relations of negative emotions and parenting to language skills may differ for girls and boys. The purpose of this longitudinal study was to investigate the associations among maternal sensitivity, children's observed anger reactivity, and expressive language when children were 18 (T1; n = 247) and 30 (T2; n = 216) months. At each age, mothers reported on their toddlers’ expressive language, and mothers’ sensitive parenting behavior was observed during an unstructured free-play task. Toddlers’ anger expressions were observed during an emotion-eliciting task. Using path modeling, results showed few relations at T1. At T2, maternal sensitivity was negatively related to anger, and in turn, anger was associated with lower language skills. However, moderation analyses showed that these findings were significant for boys but not for girls. In addition, T1 maternal sensitivity and anger positively predicted expressive language longitudinally for both sexes. Findings suggest that the relations between maternal sensitivity, anger reactivity and expressive language may vary depending on the child's developmental stage and sex.     

An Empirical Evaluation of the Diagnostic Criteria for Premenstrual Dysphoric Disorder: Problems with Sex Specificity and Validity

Premenstrual dysphoric disorder is a psychiatric disorder that reportedly affects between 3 to 8% of women. Although not an official diagnosis in the current Diagnostic and Statistical Manual of Mental Disorders, premenstrual dysphoric disorder has received increasing attention in the clinical literature, and considerable debate exists regarding the validity of this proposed condition. This study examined the prevalence of premenstrual dysphoric disorder in a sample of women and men and assessed the construct validity of the disorder. Twenty percent of women met the criteria for provisional diagnosis of premenstrual dysphoric disorder using Diagnostic and Statistical Manual criteria. In addition, 4% of men met these criteria when given sex-neutral assessment forms. Self-reported psychological distress and impaired interpersonal functioning did not predict women's likelihood of meeting the criteria for premenstrual dysphoric disorder. Results cast doubt on the sex-specificity of the diagnostic criteria of premenstrual dysphoric disorder and the construct validity of the disorder. Limitations of this study are discussed.     

Life Events may Contribute to Family Communication About Cancer Risk Following BRCA1/2 Testing

We assessed whether certain life events contributed to the communication about cancer risk within families who have undergone BRCA1/2 testing. We also explored what type of resources participants would have valued to help in supporting family communication about genetic information. Two hundred and forty-six individuals (218 women, 28 men) who received a BRCA1/2 genetic test result 3 to 10 years earlier (mean of 6.4 years) participated in a telephone interview. Participants were asked about the occurrence of a number of life events (cancer diagnosis, death, uptake of prophylactic surgery, and providing care to a family member with cancer) in their family since their BRCA1/2 test result disclosure and, for each occurrence, whether it fostered family communication about cancer risk. A total of 182 participants (74 %) reported that they or one of their relatives received a cancer diagnosis, 176 (72 %) reported that someone died in their family, and 73 (30 %) stated that they or one of their relatives undertook a prophylactic surgery. During this period, 109 participants (44 %) also provided care for a family member who had cancer. Among participants who reported these life events, family communication was fostered by these events in proportions varying from 50 % (death) to 69 % (cancer diagnosis). Our results indicate that life events may contribute to family communication about cancer risk. Further research is needed to determine whether these events provide a “window of opportunity” to reach family members, address their needs and concerns about cancer, update family cancer history, and introduce genetic counseling and risk assessment.     

An Island in a Sea of Development: An Examination of Place Attachment,Activity Type,and Crowding in an Urban National Park

ABSTRACT

As more people move to urban areas there will be increased pressure on existing green spaces to offer places for recreation, contemplation, historic interpretation, exercise, and nature appreciation. Development and a rise in population has led to too few public recreation sites available in many regions of the world resulting in unsustainable pressure being applied to parks. The objective of this study was to examine how place attachment may be related to type and frequency of park use and management issues regarding crowding. Data for this study were obtained via intercept survey of a random sample of visitors (N = 1088) at a park in the Metro Atlanta area, Georgia. Results suggest that place attachment had a significant relationship with frequency of visits and types of activities that visitors engaged in. There was, however, no significant relation between place attachment and crowding. First-time visitors and less frequent visitors felt most crowded, which may support the idea that the most frequent visitors expect it to be crowded and are, therefore, less sensitive to it. This study sheds light on how visitors to an urban park view their experience while recreating, and may inform policies and regulations that will help mitigate the unique management situations that urban parks present.     

Psychometric Properties and Clinical Utility of the Scale for Suicide Ideation with Inpatient Children

The purpose of the current study was to examine the psychometric properties and clinical utility of the Scale for Suicide Ideation (SSI) for children. The SSI was administered to 100 children who were hospitalized. Data were not used from 13 subjects due to the presence of a psychotic disorder or IQ less than 70, leaving 87 participants. The SSI was examined regarding its internal consistency, concurrent validity, construct validity, and factor structure when used with children. Based on the findings, the SSI appears to have adequate psychometric properties and can be used by clinicians and researchers examining children in an inpatient setting. Recommendations for clinicians are included to help make the SSI more functional in use for children.     

Factors influencing self‐report of mobile phone use: the role of response prompt,time reference and mobile phone use in recall

The current study (n = 180) assesses factors affecting the recall of past mobile phone behaviour. It manipulates two factors hypothesised as influencing recall of duration and number of calls made: time reference (24 hours vs. 3 days) and context prompt (temporal, person called, reason for call) and also considers their impact in relation to levels of mobile phone use. A measure of recall error was constructed by matching self‐reported calls to actual calls and weighting for actual usage. The results indicate that most people tend to overestimate duration and underestimate number of phone calls, although these discrepancies are related to actual amount of mobile phone use. The manipulations of time reference and context prompt have some effect on the patterns of recall in relation to number, rather than duration, of calls. The implications of these results for the development of reliable and valid self‐report measures of mobile phone use are discussed. Copyright © 2008 John Wiley & Sons, Ltd.     

Subitizing in congenitally blind adults

We investigated the role of vision in tactile enumeration within and outside the subitizing range. Congenitally blind and sighted (blindfolded) participants were asked to enumerate quickly and accurately the number of fingers stimulated. Both groups of participants enumerated one to three fingers quickly and accurately but were much slower and less accurate with four to nine fingers. Within the subitizing range, blind participants performed no differently from both sighted (blindfolded) and sighted-seeing participants. Outside of the subitizing range, blind and sighted-seeing participants showed better performance than did sighted-blindfolded participants, suggesting that lack of access to the predominant sensory modality does affect performance. Together, these findings further support the claim that subitizing is a general perceptual mechanism and demonstrate that vision is not necessary for the development of the subitizing mechanism.