A scientist conducting a research study on sleep and learning questions her own objectivity and decides to let a third person, who is not associated with conducting the experiment, score the tests. The scientist is probably trying to eliminate __________ bias.
A. experimenter
B. sample
C. control
D. treatment
Answer: A
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Infant Timmy has been babbling for several months. What is his next likely linguistic milestone?
a. Cooing b. Telegraphic speech c. First word d. Intonation
If you like studying in groups where there is more socializing and a higher noise level, you are probably
a. more of an introvert. b. more of an extrovert. c. a Type A personality. d. a Type B personality.
Lateralization is the dominance of
A) one hemisphere of the brain in specific functions. B) the frontal lobes over the parietal lobes of the brain for higher level cognitive functions. C) the subcortical levels over the cortical levels of the brain for basic functions. D) the prefrontal cortex over the subcortical levels of the brain.
Sally and her granddaughter play peekaboo regularly. At first, Sally starts the game and her granddaughter is an amused observer. By 12 months, the granddaughter actively participates, trading roles with Sally. Sally is helping her granddaughter
A) learn how to overextend and underextend. B) understand the turn-taking pattern of human conversation. C) develop a referential style of communication. D) understand telegraphic speech.