What are the degrees of freedom for a paired samples t test with 32 people in each group?
a. 32
b. 31
c. 30
d. 16
Ans: B
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For 3 and 4 year old children, math manipulatives should be
A) Discrete objects such as blocks, cubes, or beads B) Segmented objects, such as Cuisenaire rods or Montessori rods,that show units within a larger whole C) Used primarily as a supplement for paper-and-pencil activities D) Used primarily in games, such as dominoes or dice
________ are conversational abilities that students with limited English proficiency may master quite easily, while ________ entails the more complex, abstract language use related to problem-solving, evaluating, and inferring.
A. Cognitive academic language proficiency; basic interpersonal communication skills B. Language skills; pragmatic skills C. Basic interpersonal communication skills; cognitive academic language proficiency D. Conversational skills; complex skills
Panel and cohort studies are examples of which of the following?
A) longitudinal designs B) experimental designs C) correlational designs D) regression-discontinuity designs
Looking at the graph below, which intervention is the best cure for hiccups?
a. Tongue.
b. Carotid.
c. Rectum.
d. None of the interventions reduced the mean number of hiccups.