A chi-square test is appropriate if
a. there is an unequal number of individuals in each of the groups being compared.
b. the standard deviations of the posttest scores differ markedly for the groups being compared.
c. the sample size of each group being compared is below 10.
d. the posttest measures yield frequency counts.
d
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The arts help children develop emotionally by:
a. developing their skills using the arts elements. b. giving them opportunities to talk with each other. c. providing a way to express deep feelings. d. allowing them to manipulate art tools with their hands.
In the physical development of infants, which of the following is the correct order in which an infant gains muscular control?
a. Fingers, hand, arm b. Arm, fingers, hand c. Arm, hand, fingers d. Hand, arms, fingers
Which of the following is an activity rationale?
a. This activity provides additional practice on punctuating direct quotations. b. In this activity, students will add quotation marks in grade level passages. c. Students are given grade level reading passages where the quotation marks have been removed. d. This activity begins with students working with a partner and then working independently on using quotation marks.
Research has ____ validity when it accurately infers a significant relationship between the treatment and the dependent variable of the study
a. statistical c. external b. construct d. internal