Identify the purpose for a hypothesis test and briefly explain how a hypothesis test accomplishes its purpose
What will be an ideal response?
The purpose for a hypothesis test is to rule out chance as a plausible explanation for the patterns or relationships that are found in sample data. A typical test accomplishes this goal by first computing a measure of what is reasonable to expect by chance, and then demonstrating that the sample results are more than chance alone can explain. Because it is always possible that research results are simply due to chance, an alpha level is used to identify the maximum probability that the results are simply chance.
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Three groups of rats acquire a memory on day 1. On day 2, rats in group 1 are given a drug that prevents initial long-term storage while they are actively retrieving the memory. Rats in group 2 receive the drug but do not engage in memory retrieval. Rats in group 3 actively retrieve the memory and are shocked 6 hours later when they are not engaged in retrieval. On day 3, all three groups are
assessed. Which group will show the GREATEST impairments in memory? A) group 1 B) group 2 C) group 3 D) groups 1 and 2
Uninvolved parents tend to be ______.
A. emotional B. impoverished C. neglectful D. selfish
The Gate Control Theory of pain proposes that three factors are involved in
determining how much pain is felt. Which of the following is NOT one of these factors? a. activity in the small pain fibers b. activity in large-diameter fibers c. activity in hyper-sensitivity fibers d. messages that descent from the brain e. all of the above (that is, none are components of the Gate Control Theory)
Déja, who suffers from migraines and ulcers, would likely want to take her migraine medication __________.
A. orally B. intravenously C. sublingually D. intramuscularly