The use of a hand-held microcomputer in the collection of physiological,subjective and behavioral data in ecologically valid gambling settings

A small, hand-held micro-computer was linked with telemetry equipment to permit simultaneous collection of heart rate, subjective ratings, and behavioral/environmental events. The two objectives satisfied by the system were unobtrusiveness in real-life gambling settings and capacity to down-load data directly to a host computer.This project is supported by the Australian Research Scheme grant no. A 284157490 I. Receiver and transmitters loaned by the Department of Zoology, ANU, and technical advice from Jim Bishop and Lyle Carpenter.     

The component structure of elderly population growth in the Netherlands: 1950–1980

While there is no doubt about the magnitude of the growth of older age groups in industrialized nations, its structural components are less well understood. This paper examines the roles played by cohort succession and mortality in the process for the Netherlands during the period 1950 to 1980. While the size of population aged 65 and over has increased for both males and females, increases in the size of succeeding cohorts explain all of the growth in the older male population. Reductions in mortality at the older old ages play a much greater role than do reductions at younger old ages; the latter reductions occur among females only.     

Distributional implications of equal sacrifice rules

A conclusive story can be made out of equal absolute and equal proportional sacrifice rules if only income after some poll tax of equal total revenue is taken as basis for distributional comparisons.     

OPTIMAL CALL SCHEDULING FOR A TELEPHONE SURVEY

Contacting a suitable respondent at home and securing the interviewis a significant component of the typical household telephonesurvey. An optimal calling schedule minimizes the number ofcallbacks required and thus conserves resources. This articlepresents an analysis of time-of-day and day-of-week effectson the probabilities of obtaining an answered outcome and aninterviewed outcome in a large national telephone survey ofadult males. The data presented indicate that, at least forthe survey population included in this study, the chances ofobtaining an answer and conducting an interview on the firstcall are much better on weekday evenings and on weekends thanthey are during weekday daytime hours. Moreover, there is someevidence to indicate that this finding also applies to secondcalls made to first-call no-answers, at least with regard tocontacting efforts. Time-of-day and/or day-of-week effects onfirst call outcomes appear to be generally consistent with respectto both contacting and interviewing, although Sunday has a decidedlyhigher interview response rate for answered calls than do theother calling periods analyzed.