Purpose: Repeated duration data are frequently used in behavioral studies. Classical linear or log-linear mixed models are often inadequate to analyze such data, because they usually consist of nonnegative and skew-distributed variables. Therefore, we recommend use of a statistical methodology specific to duration data. Method: We propose a…

The authors identify 2 major types of statistical data from which semantic representations can be learned. These are denoted as "experiential data" and "distributional data". Experiential data are derived by way of experience with the physical world and comprise the sensory-motor data obtained through sense receptors. Distributional data, by…

The data presented in this report call attention to inappropriate use of the Eigenroot criterion in factor work, a practice which has probably grown out of a theoretical focus on determining basic laws of behavior, rather than a practical emphasis on providing information that will be useful to college instructors and administrators. When…

A typology of incentives and the general effects of incentives for family planning are discussed in "Incentives in the Diffusion of Family Planning Innovations," the first of three studies in this monthly publication of The Population Council. A brief review of the history of incentives and their present status in the fields is given, together…

"Kerala's Pioneering Experiment in Massive Vasectomy Camps," the principal article in this monthly publication of the Population Council, is a detailed research report on the success of a massive vasectomy camp conducted at Cochin, the capital city of the Ernakulam District of Kerala State, India. The second article, "The Gujarat…

In the principal article, "A Comparison of Two Large-Scale Studies of the Use-Effectiveness of IUDs," the results of evaluation of loop D use in 11 public health and hospital clinics (California Cooperative Statistical Program for Evaluation of Intrauterine Devices) are compared with results from the Cooperative Statistical Program for Evaluation…

A new design for government family planning programs is proposed in "Family Planning Programs: An Economic Approach," the principal article in this monthly publication of The Population Council. The design is intended primarily for low-income countries that seek large and rapid reductions in fertility. Thirteen elements of the proposed system of…

Changes in abortion legislation in Romania, together with the effects of restrictive legislation, are summarized in "Abortion Legislation: The Romanian Experience," the first of two articles in this monthly publication of The Population Council. Romania legalized abortion on request in September, 1957. Nine years later, October, 1966,…

The problem under investigation in this report was the low achievement level of some students in the ESEA Title I Schools in Kansas City, Missouri. It was felt that part of this low achievement was due to a negative feeling among some teachers regarding the ability of the children to achieve. Kansas City mental health professionals and educators…

More attention should focus on sample sizes and the concept of statistical power in research in the field of health, physical education, and recreation. (JD)

This paper is an ardent plea for simplifying experimental design and the associated statistics. The emphasis is on design itself. Traditional designs from simple to complex and reviewed and the simplest, most basic ways of handling the data are presented. Design is stressed in such a way that simple statistics follow. The intactness of…

The purpose of this study was to determine if white university students were aware of any peer group attitudes toward blacks. Student respondents to a questionnaire felt that college students do not like racists, but a similar group of college students made negative racial responses when their attitudes were measured. The findings provided some…

This study proposes to explore characteristics not usually considered musical, and yet which might combine in persons in such a way that results may lead to a clearer understanding and more accurate measurement and prediction of musical talent. Two hypotheses were tested: (1) Musical talent can be predicted by means of a selected set of variables…

Incorporating statistical process control (SPC) methods into applied behavior analysis is discussed. It is claimed that SPC methods would likely reduce applied behavior analysts' intimate contacts with problems and would likely yield poor treatment and research decisions. Cases and data presented by Pfadt and Wheeler (1995) are cited as examples.…

The study employs stepwise regression analysis to relate work and total job satisfaction with the following measures: job characteristics as reflected by job dimension scores and work quality dimensions, both being based on the Position Analysis Questionnaire; job-related interests expressed by job incumbents, as measured by the Job Activity…