Rebecca tells Tom that he is singing "off pitch.". Rebecca is referring to which physical property of sound?
a. Amplitude
b. Frequency
c. Loudness
d. Speed
e. Decibel
b
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Treatment for conduct disorder
a. has been ineffective. b. has only shown success when combined with the use of medications. c. has been effective for boys, but not for girls. d. tends to be more successful when it rewards good behavior and includes parent training.
During an amniocentesis, a catheter is inserted into the mother's vagina and cervix
a. True b. False Indicate whether the statement is true or false
What role do free radicals play in aging?
a. They damage body organs and DNA. b. They can reduce the impact of proteins on body organs and DNA. c. They decrease body fat. d. They cause anti-oxidants to be produced.
A monthly paycheck best represents a ________ schedule of reinforcement
a. fixed interval b. variable interval c. fixed ratio d. variable ratio e. continuous