________________ of participants is done to obtain a representative sample, and __________ of the participants is done to improve the experimental design of the study.
a. Random selection; random assignment
b. Random selection; random sampling
c. Random assignment; random selection
d. Random assignment; matching
Question 2
___________ research is primarily descriptive and useful in theory generation while _______ research is more useful in testing hypotheses.
a. Quantitative; qualitative
b. Qualitative; quantitative
c. Experimental; correlational
d. Cross-sectional; longitudinal
Female A. australis, the only Australian representative of Aythyinae
A typical spectrum with peaks representing the peptide fragments generated from a sample
Major Findings of the High Scope Preschool Study High Scope participants showed better academic per
Sample Advance Directive
The distribution of the number of hours that a random sample of people spend doing chores per ...
(left) Urine sample from an unaffected person does not change color upon exposure to air. (right) Ur