1. In a study of sex-role stereotypes and the understanding of gender, a psychology student used a group of 7-year-old children. Each child was shown two pictures.

• Picture 1 showed people carrying out sex-stereotypical activities.

• Picture 2 showed people carrying out non-sex-stereotypical activities.

The student asked the children to say how much they liked each picture on a scale of 1–10.

Explain how the study could be improved by selecting the pictures another way.