When was ancient egypt the most powerful and prosperous

New Kingdom: 1550-1077 BCE. Around 1550 BCE, the New Kingdom period of Egyptian history began with the expulsion of the Hyksos from Egypt and the restoration of centralized political control. This period was Egypt's most prosperous time and marked the peak of its power.

between 1570 and 1544

Explanation:

During this period Egypt experienced prosperity and growth.

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.        

i disagree that there is little difference between adult female development and adult male development. sociological studies comparing female and male pathways to adulthood, revelead that there are sustancial differences between them. particularly, female and male differ from timing of marriage, when they began to live with children and the likelihood of combining wife/husband and parent roles.