Describe the three major steps of the scientific method and give an example of each.
What will be an ideal response?
- Identifying questions of interest (example: Why do girls and boys differ in height during puberty?)
- Formulating an explanation (example: Biological and genetic forces produce these observable physical changes)
- Carrying out research that either lends support to the explanation or refutes it (examine: Blood samples, genetic testing, and familial height measurements are collected)
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Dr. Limmex is trying to win FDA approval for a new drug to treat anxiety. Dr. Limmex claims that 14% of the people who took this new drug reported reduced anxiety; however, other researchers claim that 14% of patients who receive no treatment also report reductions in their anxiety levels. It appears that the patients who improved after taking Dr. Limmex's drug
a. had a self-report bias. b. may have been experiencing placebo effects. c. were a non-representative sample. d. should have been placed in the control group, rather than the experimental group.
The purpose of the myelin sheath is to _________
a. provide a place for respiration and metabolism to occur b. carry messages from the spinal cord to the brain c. insulate the neuron so it can act more efficiently d. receive messages from outside the neuron and carry them to the cell nucleus
As Darius is sleeping, his dog begins to bark. As a result, his brain emits several sudden sharp waveforms known as _________.
A. hypnic jerks B. sleep spindles C. K complexes D. alpha wave activity
Because AIDS is caused by a virus (HIV), psychoneuroimmunologists have determined that there is no relationship between stress and AIDS.
Answer the following statement true (T) or false (F)