Rates of missing responses in personal digital assistant (PDA) versus paper assessments

This article describes rates of missing item responses in personal digital assistant (PDA) assessments as compared to paper assessments. Data come from the evaluation of a classroom-based leisure, life skills, and sexuality education program delivered to high school students in Cape Town, South Africa. Analyses show that the paper assessments had much higher rates of missing-ness than PDA assessments. This association is moderated by item order. Certain analyses also suggest that paper assessments have higher rates of missingness for items pertaining to participants' sexual behavior. Implications of these results for evaluation research will be discussed.     

Sleep and behavioral correlates of napping among young adults: a survey of first-year university students in Madrid, Spain

Objective: Between November 2002 and March 2003, the authors assessed the prevalence and correlates of napping among Spanish university students. Participants: The sample comprised 1,276 first-year university students; the mean age was 18.74 +/- 1.24 years, and 35.45% were men. Methods: The study was cross-sectional, and the students completed self-report, anonymous questionnaires provided during an in-class survey. Results: Almost half (44%) of the sample reported napping (90% did so after lunch for longer than 1 hour). Multiple logistic regression analysis showed that experiencing an irregular sleep-wakefulness pattern, having a morning school schedule, and being male were significant predictor variables of napping. Further significant outcome variables related to napping were having excessive daytime sleepiness, missing classes because of tiredness, better ability to concentrate later in the afternoon, and a perception of deeper nighttime sleep. Conclusions: Habitual napping is common among Spanish university students and associated with an irregular sleep-wakefulness pattern. Taking long postlunch naps seems to be used by students to cope with insufficient sleep and daytime sleepiness.     

Estimating Damages in a Class Action Litigation

In a class action litigation, actual damages are not known exactly and must be estimated. Various estimators are proposed and assessed by using a model that identifies possible sources of error. Estimators that have been used in practice are shown to be seriously biased. An empirical Bayes estimator and an empirical minimal mean squared error estimator are found to be more satisfactory methods for estimating damages.     

Unemployment and Political Partisanship: Support for the Null Hypothesis

Abstract

Analysis of survey data from faculty at fifteen colleges and universities in a large Midwestern metropolitan area supports earlier speculations that certain attributes unique to academia are predictive of differential participation in several aspects of socio-political life. Scholarly commitments and working in a field that studies socio-political issues per se are associated with liberal attitudes, casting votes for liberal candidates, and overt involvement in radical political activities. Tendencies for these associations were observed in both secular and church-related schools. Contrary to critics of the recent Ladd and Lipset studies, there is a clear tendency for faculty with liberal covert attitudes to translate them into overt participation in liberal and radical political activities.     

Community College Programs for the Human Services

A national survey of 2-year human services programs in community colleges revealed the current status of these programs and identified significant trends in areas such as program number, curriculum design, standard-setting mechanisms, student composition and career paths, and faculty affiliation. Of particular interest was the relationship of these programs and their graduates to social work education and the social services job market. Among the principal findings were (a) these programs are in a period of renewed growth and (b) a need and an opportunity exist for the social work profession, particularly social work education, to be constructively involved in this level of education.     

Influence for empirical transforms

Estimation procedures based on certain empirical transforms have been shown to be robust (eg. Paulson and Nicklin, 1983). Here the robustness of such procedures is examined formally using techniques derived from influence theory. Examples are given which demonstrate the easy-to-use nature of these methods. A useful by-product is a simple formula for asymptotic variances.     

Premarital contraception: Research reports and problems

While investigations of the effects of erotic material are badly needed, most studies suffer from serious inadequacies. The problem is largely definitional—to date there has not been agreement on the properties that define sexual stimuli, the nature of sexual arousal, and behavioral, attitudinal or other effects that are supposed to result from exposure to sexual stimuli. This paper focuses on the three major problems which make research especially difficult: (1) the special sensitivity of the area; (2) difficulties in measuring sexual arousal; and (3) problems involving appropriate control groups.     

Measuring the Development of Social Attention Using Free‐Viewing

How do young children direct their attention to other people in the natural world? Although many studies have examined the perception of faces and of goal‐directed actions, relatively little work has focused on what children will look at in complex and unconstrained viewing environments. To address this question, we showed videos of objects, faces, children playing with toys, and complex social scenes to a large sample of infants and toddlers between 3 and 30 months old. We found systematic developmental changes in what children looked at. When viewing faces alone, younger children looked more at eyes and older children more at mouths, especially when the faces were making expressions or talking. In the more complex videos, older children looked more at hands than younger children, especially when the hands were performing actions. Our results suggest that as children develop they become better able to direct their attention to the parts of complex scenes that are most interesting socially.     

British Jewry and the fight against the international white‐slave traffic, 1885–1914

In the last quarter of the nineteenth century Jews from eastern and central Europe became involved in the white‐slave traffic, as migratory prostitution was called at the time. Jews in Britain, which was a point of trans‐shipment for the major vice markets in South America and South Africa, helped to lead an organized international movement to defeat the traffic and thereby to deny this issue to anti‐semites.