About % of American children have basic reading problems
a. 5 to 10
b. 15 to 20
c. 25 to 30
d. 2 to 5
b
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If a researcher reported for an independent-groups t test that t(18) = 2.90, p< .01, how many participants were there in the study?
a. 18 b. 20 c. 10 d. 9
According to the World Health Organization, which country has the lowest rate of physical abuse among women?
A) Switzerland B) United States C) Canada D) Mexico
Which best describes the relationship between phonological and lexical development?
A. phonological development leads lexical development: children's first words are composed of sounds from within children's phonological inventory and children with larger inventories usually have larger vocabularies B. lexical development leads phonological development: as the size of children's lexicons gets larger, they develop more precise phonology in order to distinguish among the words. C. neither answer A nor B are true: phonological and lexical development operate wholly independently from each other. D. both answers A and B are true: the relationship between phonological and lexical development is an inter-dependent one.
If a set of X and Y scores has r > 0, then the regression equation, = bX + a, will have a > 0
Indicate whether the statement is true or false