Describe what happens to the mean, the standard deviation, and the shape of a distribution when all of the scores are transformed into z-scores
What will be an ideal response?
When an entire distribution is transformed into z-scores, the resulting distribution will have a mean of zero, a standard deviation of one, and the same shape as the original distribution.
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Efforts to persuade using negative emotions are very common. When are they likely to be most effective?
a. ?when negative consequences are depicted graphically b. ?when listeners are jolted out of complacency by their anxiety c. ?when they provide the most data to establish negative consequences d. ?when listeners are given an action step that they can take to reduce their anxiety
In 2014, about ______% of American households were categorized as food insecure.
A. 1 B. 5 C. 13 D. 33
Ergot poisoning refers to
a. a primitive form of drug therapy. b. a form of demonic possession that was treated by trepanning. c. reactions to LSD chemicals found in a fungus. d. a treatment designed to expand sensory experience.
A variable that is tested using the scientific method must be directly or indirectly observable and measurable.
Answer the following statement true (T) or false (F)