A test of generalizability of cardiovascular reactivity using a controlled ambulatory procedure

W. Gerin, M. Rosofsky, C. Pieper, T. G. Pickering

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

This study tested the hypothesis that reports of poor generalizability of cardiovascular reactivity measured in the laboratory to changes observed during everyday life are due to a lack of standardization of activities and position (sitting, standing) in the latter situation. Thirty-seven subjects engaged in reactivity testing, and then in a 4-hour series of standardized activities outside the laboratory (controlled ambulatory phase), accompanied by the experimenter, on each of 2 days. The controlled ambulatory activities included alphabetizing, an editing task, a brisk walk, solving word puzzles, and eating lunch. Two measures of field variability were examined: the standard deviation and the root mean square of successive differences, of all ambulatory measurements. Associations between laboratory change scores and measures of field variability were poor (highest r = .23). We conclude that evidence for generalizability of reactivity change scores remains poor, and cannot be solely attributed to the uncontrolled nature of activities in the field.

Original languageEnglish (US)
Pages (from-to)360-368
Number of pages9
JournalPsychosomatic medicine
Volume56
Issue number4
DOIs
StatePublished - 1994

All Science Journal Classification (ASJC) codes

  • Applied Psychology
  • Psychiatry and Mental health

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