Dr. Marcy is conducting an observational study that compares a group of people who have a specific disease to a control group of people who do not have that disease. What type of study is this?

Almost all of us conceal our emotions to some extent

a. True b. False

Vygotsky realized that some tasks are just beyond a child's reach. However, children receiving sensitive guidance from skilled partners could make rapid progress. Interactions like this are most helpful when they take place within a child's

a. zone of proximal development. b. vicarious learning sphere. c. cognitive maturation cycle. d. intrinsic motivational zone.