At Liberty High School, researchers passed out surveys at lunch about drug use and asked students to turn them in on their way out. They might not get accurate results because:
A. probably not all students returned them.
B. it was not a random sample.
C. All of these are correct. D. students at lunch might not be representative.

How can the judiciary balance individual rights with the common good?

How did the romanov dynasty increase russia's power?

as discussed in your text, henry molaison (h. m.) lost extensive tissue in the inner part of both temporal lobes, including the hippocampus and amygdala in both hemispheres. in her research, brenda milner found that molaison could learn a new procedural task, mirror tracing, as well as typical control participants did. however, he could not remember the details of the task. this outcome suggests that