Given a sample of those who did not respond to a mailed questionnaire, the main purpose for interviewing the sample is to
a. increase the size of the sample.
b. attempt to change the results that the investigator did not like.
c. discover which items were unclear to the subjects.
d. determine whether non-respondents differ from respondents.
e. determine what the non-respondents think about the questionnaire.
Question 2
Educational psychologists who are familiar with research findings
a. almost always agree on what the data indicate.
b. tend to criticize and therefore ignore the quality of the data.
c. rarely form conclusions on the basis of research findings.
d. sometimes construct different interpretations of what the data mean.
Internal structures of main sequence stars, convection zones with arrowed cycles and radiative zones
Pre–Main-Sequence Stars
Special Purpose Checks
Sample of a business card design.
Main Hall, Trajan's Market
Main mechanism of carbon dioxide transport and exchange. A lesser amount of CO2 travels to the lungs