Alexis is riding her bicycle to school one day and slides on some loose gravel at the bottom of a hill. Her bike flies out from under her and she looses consciousness. At the hospital Alexis does not seem oriented to the situation and cannot remember even riding her bike let alone falling. The doctors wish to take pictures of the structure of her brain to determine whether or not there are injuries. To do this, they use a
A. electroencephalogram (EEG)
B. chemical stimulation technique
C. computerized axial tomography (CAT) scan
D. positron emission tomography (PET) scan
C. computerized axial tomography (CAT) scan
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. In a recent study designed to determine the effectiveness of antidepressant medication, depressed patients were randomly assigned to take either an antidepressant medication or a placebo. Symptoms of depression were measured before and during treatment. Over the course of treatment, _____ group(s) reported decreased symptoms of depression.
A) only the antidepressant B) only the placebo C) both D) neither
Thoughts for the day
What will be an ideal response?
When scientists look for ideas related to their research project they have developed, which of the following is most often the source of their information about current knowledge of the topic?
a. Colleagues in different departments within their own institutions b. Colleagues in their own department c. The existing research literature d. Discussions within their research teams
The H test was created by
a. Wilcoxon b. Mann and Whitney c. Kruskal and Wallis d. Friedman