Mr. eli shun wants to study the development of emotion in children for his doctoral dissertation. he would like to graduate as soon as possible, so he devises a study that consists of assessing children of different ages at the same time. this is an example of a research design.

Mr. Eli Shun’s study that consists of assessing children of different ages at the same time is an example of a cross-sectional research design.

In social science and medical research, a cross-sectional research design is a kind of inspection study that inspects data from a community at a certain point in-time (cross-sectional data).

When Mr. Eli Shun devising a study that consists of assessing children of different ages at the same time is an example of a cross-sectional research design.

Explanation:

In medical science and social science research, a cross-sectional study is a type of observational study in which the designer takes and then analyzes data from a population during a specific moment in time. A cross-sectional survey works as a snapshot of the population the study is recollecting data from. Mr. Eli Shun is studying the development of emotion in children, so he asses the population, in this case children of different ages, at the same time to gather the information he needs for his doctoral dissertation.

the anasazi indians were real pioneers and created roads and irrigation systems for watering their crops. they were also great architects and the cliff dwellings are one of their biggest achievements.

explanation:

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.