Around the age of ____, children begin to get reinforced about gender from their peers.

Before differentiation begins, the first cells of the zygote are called _____ cells.

Between early and later childhood, schemes tend to have more ____ properties.

Boys' brains are about _____ percent larger than the brains of girls.

Bulimia nervosa is clinically present in _____ percent of young women in the united states.

By 24 months, most children are about ____ percent of their adult height.

The chemical structure, shaped like a twisted ladder, that contains all of the genes is known as

One of 46 rodlike molecules that contain 23 pairs of DNA found in every body cell and collectively contain all of the genes is called chromosomes

Informed consent is a participant’s informed (knowledge of the scope of the research and potential harm and benefits of participating), rational, and voluntary agreement to participate in a study.

A developmental design in which multiple groups of participants of different ages are followed over time, combining cross-sectional and _______ is called sequential research design

A developmental study in which one group of participants is studied repeatedly to infer age changes is called