This case study will present how I used mixed methods in my PhD dissertation project which investigated the majority society's attitudes toward interracial dating, marriage, and childbearing in Sweden. I will explain why I chose mixed methods and describe the mixed-methods model called follow-up explanations model of explanatory design procedures. I will also explain how the model was applied to investigate the attitudes. I address the four steps of follow-up explanations model, together with the results from my study on attitudes toward interracial relationships.