An experiment has high internal validity if

a. an observed difference between an experimental and control group is solely attributable to the
treatment variable.
b. there is a strong effect of the treatment variable on the outcome variable.
c. the research participants have been randomly assigned to the experimental and control conditions.
d. All of the above.


a

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____________________ is a major development for toddlers from 12 to 18 months

Fill in the blank(s) with the appropriate word(s).

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Effects of child abuse on young children may include

a. withdrawal. b. aggression. c. enuresis. d. withdrawal, aggression, and enuresis. ANSWER: d

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Of the following, which is a type of qualitative research?

a. Correlational b. Causal-comparative c. Ethnographic d. Experimental

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Civics is not a concept preschool teachers are able to teach

Indicate whether the statement is true or false.

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