Students may be members of multiple disadvantaged groups whose negative effects may reinforce each other (intersectionality). In two studies dealing with elementary students’ literacy skills, we examine one negative reinforcing effect and one dampening effect of intersectionality. In Study 1, we tested the negative social resonance effect of intersectional disadvantage, which means that disadvantages in achievement of intersecting disadvantaged groups would be stronger in social judgments of achievement than in objective measurement. This assumption was confirmed with a sample of 1926 German fourth-grade students. A MANOVA showed that the disadvantages in SES, migration background, and gender were cumulative. A path analysis revealed that the negative effects were larger in teachers’ performance assessments than in objective test performance in literacy. In Study 2, the negative social resonance effect of intersectional disadvantage was replicated with a sample of 777 students from Grades 4 and 5 in the United Arab Emirates. In addition, a dampening effect of learning capital was found. This effect was comparatively larger than the negative social resonance effect of intersectional disadvantage.