Stephen Colbert wants to see if teenagers prefer to play Farmland, Mafia Battle, SuperPac, or Rainbow Kitty online. He ran a study where teenagers were assigned to play each of these and rate, on a scale from 0?100, how much they liked the game. He ran t-tests between each pair of games to determine if enjoyment was significantly different. This could become a problem, and increase his chances of:
a. Type I error.
b. The standard deviations being different.
c. The means being biased.
d. The sample not being random.
a. Type I error.
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At dinnertime, Olaf is seated in his high chair as his parents try to feed him; however, Olaf repeatedly throws his cup, spoon, and much of his dinner onto the floor while he watches the consequences of his actions. Which of Piaget's substages might explain Olaf's behavior?
A. Substage 5: Tertiary circular reactions B. Substage 3: Secondary circular reactions C. Substage 4: Coordination of circular reactions D. Substage 2: First habits and primary circular reactions
Underextension is most likely the result of a toddler's limited
a. vocabulary size. b. joint attention. c. phonetic ability. d. pragmatic skills.
Which of the following is NOT associated with serious financial worries?
a. Increased depression in husbands b. Increased hostility in husbands c. Lower marital happiness for both husbands and wives d. Increased risk of separation and divorce as incomes decline
Describe and explain the advantages and disadvantages of using a within-subjects design.
What will be an ideal response?