Give an example of an experiment for each of the following. (1.
single-blind experiment with the subjects blinded
a. An experiment where researchers use two groups and give one group a placebo treatment and the other group the treatment of interest and then measure the results.
b. An experiment where researchers use two groups and give one group a placebo treatment and the other group the treatment of interest, but don't tell the groups which is which, then measure the results.
c. An experiment where researchers use two groups and give one group the treatment of interest and the other group no treatment, then measure the results.
dAn experiment where researchers use two groups and give one group a placebo treatment and the other group the treatment of interest, but do not tell the people taking measurements or the groups which group is which, then measure the results.
e. An experiment where researchers use two groups and give one group the treatment of interest and the other group no treatment, but do not tell the people taking measurements which group is which, then measure the results.
(2
single-blind experiment with the individuals measuring the response blinded
a. An experiment where researchers use two groups and give one group a placebo treatment and the other group the treatment of interest and then measure the results
b. An experiment where researchers use two groups and give one group a placebo treatment and the other group the treatment of interest, but don't tell the groups which is which, then measure the results.
c. An experiment where researchers use two groups and give one group the treatment of interest and the other group no treatment, then measure the results.
d. An experiment where researchers use two groups and give one group a placebo treatment and the other group the treatment of interest, but do not tell the people taking measurements or the groups which group is which, then measure the results.
e. An experiment where researchers use two groups and give one group the treatment of interest and the other group no treatment, but do not tell the people taking measurements which group is which, then measure the results.
(3
double-blind experiment
a. An experiment where researchers use two groups and give one group a placebo treatment and the other group the treatment of interest and then measure the results.
b. An experiment where researchers use two groups and give one group a placebo treatment and the other group the treatment of interest, but don't tell the groups which is which, then measure the results.
c. An experiment where researchers use two groups and give one group the treatment of interest and the other group no treatment, then measure the results.
d. An experiment where researchers use two groups and give one group a placebo treatment and the other group the treatment of interest, but do not tell the people taking measurements or the groups which group is which, then measure the results.
e. An experiment where researchers use two groups and give one group the treatment of interest and the other group no treatment, but do not tell the people taking measurements which group is which, then measure the results.
(4.
a. an experiment for which it is not possible to blind the subjects
b. An experiment comparing taking a vitamin supplement versus not taking a vitamin supplement.
c. An experiment comparing a flu shot versus a placebo shot.
d. An experiment comparing the results of biking a mile versus swimming a mile.
e. An experiment seeing if men do better in psychology than in women. An experiment comparing the effect of sweet drinks on children.