Answer:
Rosenfeld, a lead author on the research and a professor of sociology in the School of Humanities and Sciences, drew on a nationally representative 2017 survey of American adults and found that about 39 percent of heterosexual couples reported meeting their partner online, compared to 22 percent in 2009.
Explanation:
Answer:
accurate maps were important to Eauropean explorers because while they were exploring the New World and claiming new land, the accuracy of the maps helped the navigators find the locations and measure the distances.
Answer:
a decreasing trend in the number of temper tantrums.
Explanation:
ABAB design also known withdrawal or reversal design is a design used in experimental study of behaviour to measure the effects of a treatment on a particular baseline information by measuring a baseline information A, then applying a treatment B on A, thereafter, treatment B is withdrawn from A for a period, and finally treatment B is applied again to A to measure the effects of change caused by the treatment. This design is given by :
A - baseline established
B - treatment offered
A - withdraw treatment for a time
B - offer treatment again to show effectiveness of the treatment
