Biomedical subjects

M Hallahan

Publications and source records attributed to M Hallahan.

3 recordsLinked to original sources

PubMed2001

Do situational expectations produce situational inferenes? The role of future expectations in directing inferential goals.

Little is known about the conditions that lead observers to adopt different inferential goals in the context of their everyday lives. Four studies examined whether future expectations created situational inferential goals. In 2 quasiexperimental studies, students made more situational inferences for targets in their expected future careers. In 2 experiments, situational expectations were manipulated, and participants made more situational inferences when they expected to be in the same situation as the target. This tendency was stronger when observers devoted minimal cognitive effort to their inferences, suggesting that when observers have situational expectations, making situational inferences is less effortful than making dispositional inferences.

Adolescent↗

PubMed1999

Accuracy of judgments of sexual orientation from thin slices of behavior.

In this research the authors examined the accuracy of judging sexual orientation on the basis of brief observations or "thin slices" of nonverbal behavior. In Study 1, sexual orientation was judged more accurately than chance, with judgments being more accurate when based on dynamic nonverbal behavior (10-s and 1-s silent video segments) than on static information (a series of 8 still photographs). Gay men and lesbians were more accurate than heterosexuals in judging still photographs and 1-s clips but not in 10-s clips. In Study 2, judgments based on 10-s dynamic figural outline displays containing primarily gestural information were more accurate than chance.

Adult↗

PubMedDate not supplied

Statistical power: concepts, procedures, and applications.

This paper discusses the concept of statistical power and its application to psychological research. Power, the probability that a significance test will produce a significant result when the null hypothesis is false, often is neglected with potentially serious consequences. The concept of power should be considered as part of planning and interpreting research. This article provides explication of the concept of power and suggestions for researchers to increase the power of their investigations.

Behavior Therapy↗