A researcher tests the influence of environment on cognitive development by taking newborn children away from their parents and assigning half of them to a rich cognitive environment and half to a deprived cognitive environment. Is there anything wrong with this experiment, and if so, what?
a. No; there is nothing wrong with this experiment.
b. Yes; there is no control group.
c. Yes; this experimental method violates ethical standards.
d. Yes; this experimental method cannot control for the Hawthorne effect.
Question 2
Brads thesis advisor often tells him that its important to strive for results that are statistically significant. He explains that to have results that are statistically significant means that ____.
a. descriptive statistics were used in this study
b. participants were randomized in his study
c. there was no random selection
d. there is a small chance that the results were caused by random variables
Overview of development of embryonic stages.
Interaction web of factors that might influence locust population size.
Procedures for Diagnostic Tests Related to the Digestive System
Everyone—from children to adults—can help eradicate hunger
Attitude and Influence
Thunderstorm Development