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Biomedical subjects

G R Pierce

Publications and source records attributed to G R Pierce.

5 recordsLinked to original sources
PubMed1998

The role of dispositional and situational factors in cognitive interference.

Two studies investigated the cross-temporal stability and cross-situational consistency of cognitive interference. In Study 1, 70 college students reported on the intrusive thoughts they experienced during 2 course examinations and a self-reflective task. In Study 2, 55 college athletes reported on intrusive thoughts following 2 course examinations and 2 regular season football games. Major findings were (a) cognitive interference showed both cross-temporal stability and cross-situational consistency, (b) it was predicted by a measure of dispositional intrusive thinking, (c) the link between cognitive interference and dispositional intrusive thinking was not accounted for by indices of depressive symptomatology and trait anxiety, and (d) the degree of cross-situational consistency of cognitive interference and the content of these intrusive thoughts were influenced by situational factors.

Adult↗
PubMed1992

General and specific support expectations and stress as predictors of perceived supportiveness: an experimental study.

Fifty-four undergraduates and their mothers participated in an experiment to evaluate hypotheses derived from a theory of perceived social support (Pierce, Sarason, & Sarason, 1990). Regression analyses indicated that the variables in the model accounted for 14.83% and 40.93%, respectively, of the variance in students' perceptions of their mothers' behavior assessed during 2 standardized laboratory situations. Unique effects were found for students' expectations for support from and conflict with their mothers in both pre- and posttask situations, although the effect of conflict was contrary to prediction in the pretask situation. Stress had an impact only in the posttask situation. Students' general expectations for support had no unique impact in either situation. Implications for the role of general and specific expectations for support and conflict, and situational factors, in theories of perceived social support are discussed.

Attitude↗
PubMed1991

General and relationship-based perceptions of social support: are two constructs better than one?

Two hypotheses derived from a theory of perceived social support were investigated: (a) relationship-based perceptions of social support are distinct from general perceptions of support, and (b) measures of each construct contribute uniquely to the prediction of loneliness. Ninety-four male and 116 female undergraduates completed measures of loneliness and general perceived social support and the Quality of Relationships Inventory, a new instrument to assess relationship-based perceptions of social support, conflict, and depth in specific relationships. General and relationship-based perceptions of social support were found to be related, but empirically distinct, constructs. Relationship-based perceptions of support and conflict from mothers and friends each added to the prediction of loneliness after considering the contribution of general perceived social support. Implications of these findings for understanding the perceived social support construct are discussed.

Adult↗
PubMedDate not supplied

Promotion of high school blood donations: testing the efficacy of a videotaped intervention.

"Life to Life," an 11-minute videotape based on social learning principles, was used by 10 blood centers in presentations to 4970 high school students one week before school blood drives. At each school, some students saw the videotape and others attended a blood center's customary presentation. Students also completed a brief questionnaire assessing donation attitudes, donation history, and intent to donate. The videotape accounted for a relative increase of 18.7 percent in donations even when other factors were not controlled for. Results were analyzed with logistic models and showed a consistently positive effect over all models used. For students who had never donated, the estimated odds ratio for actual donation (videotape:control) was 1.528. When the model included both type of presentation and ethnicity, the relative increase in donation over that after the blood centers' usual presentation was 69.8 percent for first-time donors. Among previous donors considered alone, the effect on donation was not significant. Whatever their donor history, students who viewed the videotape showed significantly more positive attitudes toward donation and had greater intention to donate than students who saw the blood centers' standard presentations. These results suggest that this videotape is a useful tool for recruitment of high school blood donors.

Adolescent↗