Integrated resorts, including legal casinos will be introduced in Japan soon. This study investigated the relevant factors associated with the fear of weakening security and attitude by introducing casinos in Japan. A survey was conducted with 1,505 Japanese adults (748 women and 757 men) who completed a web-based questionnaire that measured their levels of fear owing to the weakening security and attitude toward introducing casinos, problems owing to gambling, gambling-related cognitions, critical thinking disposition, fear of crime, and Big Five personality traits. Gambling-related cognitions, critical thinking disposition, fear of crime, and conscientiousness were significant predictors of the fear of weakening security among women. Gambling-related cognitions and fear of crime were significant predictors among men. Fear of crime, extraversion, agreeableness, and conscientiousness were significant predictors of the attitude toward introducing casinos among women; gambling-related cognitions and fear of crime were significant predictors among men.
