University of Groningen

About: University of Groningen is a education organization based out in Groningen, Groningen, Netherlands. It is known for research contribution in the topics: Population & Context (language use). The organization has 36346 authors who have published 69116 publications receiving 2940370 citations. The organization is also known as: Rijksuniversiteit Groningen & RUG.

Lack of group-to-individual generalizability is a threat to human subjects research

Abstract: Only for ergodic processes will inferences based on group-level data generalize to individual experience or behavior. Because human social and psychological processes typically have an individually variable and time-varying nature, they are unlikely to be ergodic. In this paper, six studies with a repeated-measure design were used for symmetric comparisons of interindividual and intraindividual variation. Our results delineate the potential scope and impact of nonergodic data in human subjects research. Analyses across six samples (with 87-94 participants and an equal number of assessments per participant) showed some degree of agreement in central tendency estimates (mean) between groups and individuals across constructs and data collection paradigms. However, the variance around the expected value was two to four times larger within individuals than within groups. This suggests that literatures in social and medical sciences may overestimate the accuracy of aggregated statistical estimates. This observation could have serious consequences for how we understand the consistency between group and individual correlations, and the generalizability of conclusions between domains. Researchers should explicitly test for equivalence of processes at the individual and group level across the social and medical sciences.

The relationship between the big five personality factors and burnout: a study among volunteer counselors

Abstract: In the present study of 80 volunteer counselors who cared for terminally ill patients, the authors examined the relationship between burnout as measured by the Maslach Burnout Inventory (C. Maslach, S. E. Jackson, & M. P. Leiter, 1996) and the 5 basic (Big Five) personality factors (A. A. J. Hendriks, 1997): extraversion, agreeableness, conscientiousness, emotional stability, and intellect/autonomy. The results of 3 separate stepwise multiple regression analyses showed that (a) emotional exhaustion is uniquely predicted by emotional stability; (b) depersonalization is predicted by emotional stability, extraversion, and intellect/autonomy; and (c) personal accomplishment is predicted by extraversion and emotional stability. In addition, some of the basic personality factors moderated the relationship between relative number of negative experiences and burnout, suggesting that personality may help to protect against known risks of developing burnout in volunteer human service work.