Question

Which of the following principles of experimental design ensures that the explanatory variable, and not some variable over which the experimenter has no control, is causing observed changes in the response variable?
A. Control
B. Blindness
C. Randomization
D. Replication
E. Placebo effect

Answer 1

b?

Answer 2

jaka i got it right

Answer 3

okay babby

Answer 4

jaka, ur name is seriously awesome. its catchy

Answer 5

well

Answer 6

thanks

Answer 7

hehe

Answer 8

yours is better

Answer 9

The placebo effect is the measurable, observable, or felt improvement in health or behavior not attributable to a medication or invasive treatment that has been administered. The placebo effect is not mind over matter; it is not mind-body medicine. 'The placebo effect' has become a catchall term for a positive change in health not attributable to medication or treatment. As is explained below, the change can be due to many things, such as regression to the mean, spontaneous improvement, reduction of stress, misdiagnosis in the first place, subject expectancy, classical conditioning, etc.

Answer 10

lol what

Answer 11

say b

Answer 12

it sounds correct

Answer 13

because a would've been eliminate because they have no control

Answer 14

yeah c