To conduct a randomized experiment, researchers usually classify the participants into a:
A) study group and a control group.
B) treatment group and a test group.
C) study group and a treatment group.
D) treatment group and a control group.
Question 2
If the Fed purchases government bonds, it
A) decreases bank reserves and the supply of money.
B) decreases bank reserves but increases the supply of money.
C) increases bank reserves and the supply of money.
D) increases bank reserves but decreases the supply of money.
FT-IR experiment
Rutherford Scattering Experiment
Bronfenbrenner’s model of the ecological-systems approach to studying development. He suggested that
Faces in experiment
Researchers have found that science instruction can be quite effective in grades 4 to 7.
The Lederberg–Zinder experiment using Salmonella