Experts believe that OCD is first acquired through ________.
A. classical conditioning
B. behavioral therapy
C. operant conditioning
D. negative reinforcement
A. classical conditioning
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Samuel is interested in the impact of noise on excitability levels in children vs. teenagers. He exposes participants to a quiet room with no sounds (0 dB), music at 50 dB (normal conversational level), or music at 80 dB (the volume just below where hearing damage can occur). After exposing them to one of the noise conditions for 10 minutes, he immediately measures their excitability by measuring their heart rate. To test his hypothesis, Samuel is most likely to use which of the following statistical analyses?
a. Two way factorial ANOVA b. Mixed design ANOVA c. Repeated mixed ANOVA
In 2010 in the United States, what percentage of children spoke English at school and another language at home?
10 20 30 40