The place theory and the frequency theory help to explain _______
a. how a wide range of frequencies is heard by the ear
b. how amplitude is regulated by the ear
c. how sounds are located
d. how "boilermakers' deafness" occurs
a
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Addressing emerging problems while they are still manageable and before they become resistant to intervention describes
a. primary prevention. b. secondary prevention. c. tertiary prevention. d. combinational prevention.
Which of the following is (are) true about the F distribution?
a. it has no negative values b. it is positively skewed c. there are a family of F curves uniquely determined by df(numerator) and df(denominator) d. the mean of the F distribution equals 0 e. all of these f. it has no negative values and it is positively skewed g. it has no negative values, it is positively skewed and there are a family of F curves uniquely determined by df(numerator) and df(denominator)
Young Marita has periods during her sleep when she will appear to wake up, and will scream, kick and thrash, and appear to be in significant distress as she breathes faster and faster. Which of the following statements best explains what is happening?
a. Marita is experiencing hyperstimulation of the sympathetic nervous system caused by sleep deprivation. b. Marita is experiencing night terrors. c. Marita is responding to nightmares, which are common in young children. d. Marita is not fully asleep, and is experiencing a disorder of first and second sleep stages.
Does current research support the idea that educational media products improve cognitive development for infants?
a. yes b. no c. there is no research on this topic d. yes, but only for language development