Agroup of preschool-age children are enrolled in a study that plans to follow them over time in order to assess behaviors and other characteristics that may predict later development of schizophrenia. this is an example of a(n) design. a. cross sectional b. experimental c. longitudinal d. survey

This is an example of a longitudinal design.

Explanation:

In social research, a longitudinal design is implemented to study the development of a particular pehnomenon across time, the main characteristic of this design is that the subjects of the study remain the same throughout the whole research and they are studied or observed at different points in time. Longitudinal designs are often used in psychology and have been very usefull in the construction of human development theories.

In this case, the characteristics of the research correspond with a longitudinal design.

the secretary of state, appointed by the president with the advice and consent of the senate, is the president's chief foreign affairs adviser. the secretary carries out the president's foreign policies through the state department and the foreign service of the united states.

answer; ///attempts to change more than once behavior at the same time;