Structural and Reliability Analysis of Quality of Relationship Index in Cancer Patients

Abstract

Among psychosocial factors affecting emotional adjustment and quality of life, social support is one of the most important and widely studied in cancer patients, but little is known about the perception of support in specific significant relationships in patients with cancer. This study examined the psychometric properties of the Quality of Relationship Inventory (QRI) by evaluating its factor structure and its convergent and discriminant validity in a sample of cancer patients. A total of 388 patients completed the QRI. Convergent validity was evaluated by testing the correlations between the QRI subscales and measures of general social support, anxiety and depression symptoms. Discriminant validity was examined by testing group comparison. The QRI's longitudinal invariance across time was also tested. Principal axis factor analysis with promax rotation identified three factors accounting for 42.99% of variance: perceived social support, depth, and interpersonal conflict. Estimates of reliability with McDonald's ω coefficient were satisfactory for all the QRI subscales (ω ranging from 0.75 - 0.85). Satisfaction from general social support was negatively correlated with the interpersonal conflict subscale and positively with the depth subscale. The interpersonal conflict and social support scales were correlated with depression and anxiety scores. We also found a relative stability of QRI subscales (measured 3 months after the first evaluation) and differences between partner status and gender groups. The Quality of Relationship Inventory is a valid tool for assessing the quality of social support in a particular relationship with cancer patients.

Confirmatory Factor Analysis of the QRI Father's Version in a Portuguese Sample of Adolescents

“…The CFA results revealed that a three-factor model (Pierce et al, 1991) provided an adequate fit to the data. Other studies (Verhofstadt et al, 2006;Reiner et al, 2012& Cousson-Gélie et al, 2013 have also confirmed the three-factor structure proposed by Pierce et al (1991). Although, Nakano et al (2002) and Matos et al (2013a) found a two-factor structure.…”

“…The psychometric properties of the QRI have been studied and results indicated that the QRI has good validity (e.g., discriminant, predictive), and temporal stability (e.g., Cousson-Gélie, Chalvron, Zozaya & Lafaye, 2013;Nakano et al, 2002;Pierce, 1994;Pierce et al,1991;Verhofstadt, Buysse, Rosseel & Peene, 2006). Pierce et al (1991) investigated the factor structure of the QRI in a sample of undergraduates who completed the QRI for several close relationships (e.g., mother, father, and friend).…”

The Factorial Structure of the Quality of Relationships Inventory-Parents Perception (QRI-PP)

“…It should also be noted that this study did not meet the results obtained in other studies carried out previously, that found a tri-factorial structure that matches the original version: in Portuguese context, studies of Neves (2006), Marques et al (2014) and Marques et al (2015); and internationally, studies from Verhofstadt et al (2006), Reiner et al (2012) and Cousson-Gélie et al (2013).…”

“…Nakano et al (2002) found in a small sample of the Japanese population (40 couples), a factorial structure of 2 factors, where the depth and social support subscales were combined; Verhofstadt, Buysse, Rossel and Peene (2006) conducted a study with 286 Belgian couples and concluded that the original three-factor structure was the most suitable; Reiner, Beautel, Skaletz, Brahler and Stobel-Richter (2012), with a sample of 1494 adults, conducted the German validation of this scale, that also confirmed the tri-factorial structure of the QRI; Cousson-Gélie et al (2013) performed a confirmatory factor analysis, in France, with 388 cancer patients, which also corroborated the original factorial structure.…”

Posttraumatic growth in breast cancer survivors and their husbands based on the actor‐partner interdependence model

“…Breast cancer survivors maintain satisfying marital relationships by promoting mental health and role adjustment through emotional support, which is a key marital concept. Social support is an important influential factor in PTG in BC survivors, for whom health‐ and adjustment‐related support should be provided by spouses, as they are the primary source of support . These results indicate that mutual support between spouses, as partners in growth and healing, could reduce the effects of external events, which highlights the need for couples counseling programs.…”