The graduation rate for ELL students is
a. 16%.
b. 36%.
c. 64%.
d. 79%.
ANS: C
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The major threat to the internal validity of research on articulation problems in young children is
a. regression. b. instrumentation. c. mortality. d. maturation. e. selection.
Transport America conducts a survey of 1000 people and learns that given a choice, 75% of Americans prefer traveling by bus to traveling by train. To test whether the preference for the two modes of transportation differs, one could conduct a
a. z-test for proportion. b. Chi-square Test for Goodness of Fit. c. Chi-square Test for Independence. d. One-way ANOVA) e. a) or b)
A megabyte, abbreviated MB, is equal to approximately 1 thousand bytes. ____________
Indicate whether the statement is true or false.
Preschool children need _____________ calories per pound of body weight than they did as infants and toddlers
a. Fewer b. Slightly more c. Twice as many d. The same number of