A researcher wants to collect information about how the sex-role identities of 1st-, 3rd-, 5th-, and 7th-grade children differ. What type of research design is she likely to use?

Why is it important to understand the idea of attachment style?

a. So that people in a relationship can show love in the manner desired by their partner. b. So that it is possible to avoid the problems of Internet dating. c. Because the more that partners know about each other, the more intimate the relationship. d. Because the amount of security as an infant leads to the ability of adults to form relationships with others.

The three basic properties of an object are volume, weight, and

A) liquid B) number C) mass D) height