A researcher assessed the effects of a new drug on migraine headaches. One sample of migraine sufferers received a placebo pill (0 milligrams of the drug) every day for a month. A second sample received a 10-mg dose of the drug daily for a month, and a third sample received daily doses of 20-mg. The number of headaches each person had during the month was recorded. The results are summarized in th
11. A researcher assessed the effects of a new drug on migraine headaches. One sample of migraine sufferers received a placebo pill (0 milligrams of the drug) every day for a month. A second sample received a 10-mg dose of the drug daily for a month, and a third sample received daily doses of 20-mg. The number of headaches each person had during the month was recorded. The results are summarized in the following table:
|
The Mean Number of Migraines During Drug Treatment |
||
|
Dose of Drug (in mg) |
Mean Number of Migraines |
SE |
|
0 |
28 |
5 |
|
10 |
12 |
4 |
|
20 |
5 |
2 |
h. Construct a graph (by hand) that incorporates all the information in this table.
i. Looking at your graph, do you think that the relaxation training really worked. Explain your answer.
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