Justice beliefs buffer against perceived barriers to colorectal cancer screening among African Americans

OBJECTIVES: African Americans develop and die from colorectal cancer (CRC) more than any other racial group in the United States. Perceived barriers to screening (e.g. embarrassment and financial costs) likely exacerbate these disparities. Identifying psychological factors that can reduce the impact of perceived barriers and encourage CRC screening is therefore critical. This study explored whether believing the world is fairer for oneself than in general (personal justice ascendancy) would moderate the impact that perceived barriers have on receptivity to CRC screening. METHOD: Four-hundred fifty-seven screening eligible African Americans completed measures of beliefs about justice for self and others, as well as perceived barriers to CRC screening. Participants also completed theory of planned behaviour (TPB) measures of screening receptivity (attitudes, norms, perceived behavioural control and intentions). RESULTS: Perceived barriers and justice beliefs interacted to predict perceived behavioural control over screening. Perceived barriers were associated with less perceived behavioural control only when personal justice beliefs were low. In turn, perceived behavioural control predicted stronger intentions to obtain CRC screening. CONCLUSIONS: Interactive effects with perceived barriers highlight that strong personal justice beliefs play an important role in CRC screening and could aid in addressing CRC screening disparities among African Americans.