If a two-factor analysis of variance produces a statistically significant interaction between the two factors A and B, then what can you conclude about the main effects for A and B?
A) ?Either the main effect for factor A or the main effect for factor B is also significant.
B) ?Both the main effect for factor A and the main effect for factor B are significant.
C) ?Neither the main effect for factor A nor the main effect for factor B is significant.
D) ?The significance of the main effects is not related to the significance of the interaction.
D
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A resource to which all users have unrestricted access is called a
(a) social facilitation resource (b) competitive resource (c) cooperative resource (d) commons
When child-care centers provide favorable characteristics, such as small group sizes and educated caregivers,
A) they are able to pay salaries at or above minimum wage. B) the adults are more verbally stimulating and sensitive to children's needs. C) children's IQ scores increase by 7 to 10 points. D) children from high-SES families reap greater benefits than children from low-SES families.