The main advantage of a pilot study of a proposed research study is

The main advantage of a pilot study of a proposed research study is
 
  a. it permits a check of the data collection and the analysis procedures.
  b. it provides more control over the procedures than is generally possible in the actual research project.
  c. it enables the researcher to know in advance the likely outcome of the study.

Ques. 2

Which of the following statements is/are true of null hypotheses?
 
  a. They state that there is no relationship between variables.
  b. They are used to determine how likely it is that observed results are due to chance alone.
  c. They are hypotheses that researchers typically hope to retain.
  d. a and b are true.
  e. a, b, and c are true.