Your friend has designed a study to examine sexual arousal among male and female college students to erotic or nonerotic movies.
A simple main effect of the type of movie would analyze whether the arousal level is different for .

The correct answer is movies when the viewer is a male and when the viewer is a female.

Unlike what many people think, sexual arousal does not depend on gender or sexual orientation.

Men and Women experience the same degree of sexual arousal in the face of erotic images. Therefore, there are no differences at the neurobiological level in this process.

The results show that there are no differences in the brain's response to visual sexual stimuli.

For women, sex involves an affective bond. The female sexual universe requires a whole set of stimuli that demand self-knowledge, permission and willingness.

there are no options provided but you can choose among the following gender-neutral pronouns: zir, hir, eir, vis, tem, eir.

in the normal course of maintaining a pronoun-antecedent agreement, we could have used the words his or her but since we are also required to use gender-neutral language, we need to replace it with its equivalent gender-neutral pronoun.