Questions And Topics We Can Help You To Answer

1.   What is the difference between a concept and a construct?  In what way is the definition of the term variable similar or different?
   
   2.    Consider the different grading measuring scales a professor might use.  Describe what level of measurement is represented by each.  Which is the most discriminating?  Which method do you think contains that least opportunity for error?
   
   assigning a letter corresponding to a student’s performance
   assigning a number from 1 to 20
   assigning a number corresponding to a percentage performance scale
   assigning a P or F representing passing or failing
   3.    How can a researcher assess the reliability and validity of a multi-item composite scale?
   
   4.    What are the issues a researcher should consider when choosing a measurement scale.
   
   5.    List the crucial decisions that researchers face in trying to construct a valid and reliable questionnaire.  At what stage do you think most questionnaires directed at students are most likely to go wrong? Why?