A researcher has received only 20 percent of the questionnaires that she sent to the 6,000 freshmen at a large Midwestern university. What is the first step the researcher should take to increase the return rate in this survey?
a. Telephone the non-respondents, asking them to return the questionnaire
b. Send a follow-up letter with another copy of the questionnaire and a self-addressed campus envelope
c. Telephone the non-respondents requesting a personal interview
d. Receive permission from professors to stop by classes to collect surveys.
B
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Describe at least four central principles of effective vocabulary instruction. Explain at least two ways that you can support students' vocabulary learning in your classroom, along with additional considerations you would bring to vocabulary teaching for English language learners.?
What will be an ideal response?
Infant-toddler programs cannot be accredited by the National Association for the Education of Young Children.
Answer the following statement true (T) or false (F)
Which case involved the ideas that schools may not exclude students who have been classified with mental retardation and that all students must be provided with a free public education?
a. Diana v. Board of Education b. Parc v. Commonwealth of Pa. c. Mills v. Board of Education d. Larry P. v. Riles
Using the following information, calculate the z-statistic for the z-test for one mean. 
= 154 ? = 145 
= 15.25
a. 9.00 b. –9.00 c. .59 d. –.59