Altered visual perceptions such as seeing the tracks that your hand makes when you move it through the air usually happens when one ingests
A. methamphetamine.
B. methylenedioxymethamphetamine.
C. lysergic acid diethylamide-25.
D. amphetamine sulfate.
Answer: C
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What are five good parenting practices discussed in the text that research has shown are associated positively with children's social and emotional development?
What will be an ideal response?
What is the purpose for obtaining a measure of central tendency?
What will be an ideal response?
Relative frequency is defined as the
a. number of times a given score occurs in a sample. b. proportion of the total N at a given score value. c. frequency of all scores at or below a score. d. total number of scores divided by the frequency of a given score.
When one treatment condition has a lasting effect on the participants and influences their scores in later treatments, the study is confounded by ____
a. history effects b. instrumentation c. carryover effects d. progressive error