When the null hypothesis involves a continuous variable, would you use a one sample t-test or z-test?
A. t-test
B. z-test
C. Either
D. Neither
Answer: B
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What erroneous conclusion might an inexperienced teacher make about a child with an extensive vocabulary and clear pronunciation of words his peers have not mastered?
What will be an ideal response?
The major cognitive accomplishment during the preoperational stage is ______.
a. acquiring the ability to represent actions mentally rather than physically b. developing object permanence c. beginning to think logically d. translating circular reactions into goal directed activity
What is the effect of giving middle school students no formal instruction in spelling?
a. approximately 25% reduction in spelling skills b. approximately 0% reduction in spelling skills c. approximately 75% reduction in spelling skills d. approximately 50% reduction in spelling skills
Answer the following statement(s) true (T) or false (F)
. Distinguish between proactive and responsive practical action research.