If a researcher wishes to conclude something about a population from a sample, it is best that the sample be
a. large
b. taken randomly
c. homogenous
d. taken from phone books
b
You might also like to view...
Stimulus control is developed by stimulus discrimination training
a. True b. False Indicate whether the statement is true or false
Wanda is obsessed with thinking about washing her hands and cannot stop these intrusive thoughts. This demonstrates which cognitive characteristic of OCD?
a. control b. probability bias c. exaggerated estimates d. lack of confidence bias
Answer the following statements true (T) or false (F)
1. Telomerase is an enzyme that rebuilds telomeres at the tips of chromosomes. 2. If telomeres become too short, cells can no longer divide, which can lead to the development of tumours and a range of diseases. 3. Ultimately, telomerase cannot keep up telomere production at a sufficient pace, and over time cells lose their ability to divide, causing aging and, in the end, cell death. 4. Lymphocytes are cells that produce antibodies that fight infection. 5. Chronic life stressors and brief life stressors both wear down the immune system and increase the likelihood of illness.
The shortest wavelengths in the visible spectrum will be perceived as:
A) red. B) green. C) blue. D) violet.