What is reliability?
What will be an ideal response?
Instruments must be reliable to be useful. Reliability refers to consistency. If you step on a weight scale three times within a minute, assuming you made no changes (removed no clothing, drank no water, etc.), you should have pretty consistent weight readings if your scale is reliable. If your readings swing wildly by 5 or 10 pounds each time you step on the scale, you know you have an unreliable instrument.
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Your friend is cynical, mistrustful, and perceives that other peoples' hostilities are aimed at him. Which description most likely fits your friend?
a) Type A with low risk of heart disease b) Type B with low risk of heart disease c) Type B with high risk of heart disease d) Type A with high risk of heart disease
Obert shows a sharp increase in EEG brain-wave activity in the right hemisphere after seeing a classmate crying. Obert is displaying
A) a lack of empathy for another's emotional needs. B) a strong sense of sympathy. C) an ability to self-regulate his own emotions. D) delayed social-referencing skills.
The ability to understand the feelings and points of view of others is called:
a. egocentrism b. empathy c. interpersonalism d. conscientiousness
Changing the representation may involve all EXCEPT __________
a. scratch paper b. physical representation c. visualization d. Any of the above could be classified as "changing the representation."