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Comparing Two Measures of Relationship Quality on Systolic Blood Pressure

Mikel Cressman, Nathaniel Call, Shelby Seipert, Tyler Graff, Jordan Berrey, Dr. Wendy Birmingham, Psychology, Brigham Young University 1001 KMBL, Provo, Utah 84602

BACKGROUND: Social relationships can foster both positive and negative attitudes. The Social Relationships Index (SRI) was designed to measure these aspects of a relationship (Campo et al., 2009). The SRI categorized such attitudes of positivity and negativity as ambivalent or supportive. This dichotomous classification may overlook the nuances inherent to relationships, however, as positivity and upsetting scores within the ambivalent or supportive classifications can have different scores. As such, we hypothesize that there will be a significant difference in the ability of the SRI dichotomous measure and SRI differential scores to predict systolic blood pressure (SBP), respectively. 

METHOD: 314 participants aged 21-61 (mean age= 29.4; N= 157 female) completed questionaries that assessed their partners’ behavior when the participant was seeking support. Their responses were operationalized into two predictor measures. The differential score measured the difference between positive and negative spousal behavior. The categorical measure grouped scores as either supportive or ambivalent. The participants had their average SBP measured which served as our outcome measure.  

RESULTS: Two univariate regressions were used to compare the measures’ ability to account for variance in SBP. The results indicated that there was no significant predictive difference between the SRI differential measure (b=.345, R2=0.02, p=.454) and the SRI categorical measure (b=.911, R2=0.01, p=.572). 

CONCLUSION: Findings provide no evidence that there is a significant difference between the two measures’ ability to predict SBP. It is likely that the variance in SBP is accounted for by other variables which could explain the non-significant findings. Without controlling for these related variables, we were unable to find an association between our SRI measures’ and SBP and were therefore unable to make any conclusions about the difference in the predictive ability of our two measures.




Additional Abstract Information

Presenters: Tyler Graff, Mikel Cressman, Nathaniel Call, Shelby Seipert, Jordan Berrey, Wendy Birmingham

Institution: Brigham Young University

Type: Poster

Subject: Psychology

Status: Approved


Time and Location

Session: Poster 11
Date/Time: Wed 3:00pm-4:00pm
Session Number: 7075