A researcher is examining cooperation between peers by observing children at six years, eight years, and ten years old. If the researcher uses a cross-sectional design and obtains 20 scores for each age, how many children participated in the entire study?

An experimenter is examining the relationship between age and self-disclosure. a large sample of participants that are 25 to 35 years old and participants that are 65 to 75 years old are compared, and significant differences are found with younger participants disclosing much more than older people. the researcher reports an effect size of .34. what does this mean

What is one way the congress used normal legislation to affect the executive branch of government? a) congress passed laws to regulate commerce. b) congress established federal courts below the supreme court. c) congress set up agencies, departments, and offices. d) congress creates the presidency and vice presidency.

Why was new orleans destined to be the center of slave trade in the southern united states