Plötner et al. (2015)examined the effects of the presence of other children in children's helping their teacher. They used a multilevel _____ design.
A)independent groups
B)repeated measures
C)matched groups
D)nonequivalent groups

Question

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The Answer of Plötner et al. (2015)examined the effects of the presence of other children in children's helping their teacher. They used a multilevel _____ design.
A)independent groups
B)repeated measures
C)matched groups
D)nonequivalent groups

Plötner Et Al