Approaches to toilet training have changed over time. at one point, it was suggested that parents toilet-train whenever they wished, using reinforcement as part of the training. this view is most consistent with:

In ancient egypt, the pharaoh collected from the peasant farmers. a. oil b. gold c. lumber d. taxes

Donald is studying the eating habits of all students attending his school. he samples the population by dividing the students into groups by grade level and randomly selecting a proportionate number of students from each group. he then collects data from the sample. which type of sampling is used? select the correct answer below: systematic sampling convenience sampling stratified sampling cluster sampling

How does sociology account for the cause of drug and alcohol addiction?