Which of the following findings noted in observations of older babies supports the statement that babbling is a precursor to the use of real speech?
a. Older babies' babbling has stress and pitch changes that resemble real speech.
b. Older babies' babbling uses universal, not language-specific, phonemes
c. Older babies' babbling demonstrates construction of unique sound utterances.
d. Older babies' babbling uses neither declarative nor question patterns of intonation.
Answer: a. Older babies' babbling has stress and pitch changes that resemble real speech.
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Willem is a skilled pianist. He has recently started playing the violin. When an audience is present, Willem probably
a. performs better on both instruments. b. performs worse on both instruments. c. performs better on the violin only. d. performs better on the piano only. e. performs worse on the piano only.
When people dial a phone number and get a busy signal, they may have to wait 30 seconds or 30 minutes in order to get through with most people doggedly dialing over and over again until they get a connection. This illustrates that the reward of "getting through" to the other person is on which schedule of reinforcement?
a. variable interval b. variable ratio c. fixed interval d. continuous
What are the sensory receptors for light?
a) cones and rods b) pupil and sclera c) sclera and transducers d) bipolar cells and microvilli
The rate of violent crimes committed by adolescents has been increasing dramatically since 1993
Indicate whether this statement is true or false.