A specific prediction about what will hold true if we observe a phenomenon is called a
A. fact.
B. hypothesis.
C. theory.
D. correlation.
Answer: B
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The null hypothesis states that the sample mean (after treatment) is equal to the original population mean (before treatment)
Indicate whether the statement is true or false
The principle of proximity states that:
a. we think things are close together if they look similar b. if things are close together when they are in our field of vision, we assume they will stay close together when they leave our sight c. if we stare at a random collection of objects long enough, they will appear to merge with one another d. we tend to group together objects that are close to one another physically
A judge is dismissing evidence based on a lie detector test. What can you conclude about her decision?
a. Her decision is wrong because lie detector tests are valid. b. Her decision is correct because lie detector tests are only 99% accurate. c. Her decision is correct because lie detector tests are not sufficiently valid to use as a basis for legal decisions. d. Her decision is wrong because lie detector tests are far more reliable than other techniques for detecting deception, such as brain imaging.
The ____________________ is used to test children's level of egocentric thought
Fill in the blank(s) with correct word