Which of the following is NOT a component of a multiple choice question?

Which of the following is NOT a component of a multiple choice question?
 
  a) the stem
  b) the root
  c) distracters
  d) alternatives

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Which assessment technique is used in field work?
 
  a) Likert scaling
  b) Thurstone scaling
  c) observation
  d) item analysis

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Which type of test assumes that a person's responses reveal a (perhaps unconscious) world
   view which can be interpreted by an expert?
 
  a) Likert scales
  b) Thurstone scales
  c) achievement tests
  d) projective tests

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A standardized test _____________________________ ____________.
 
  a) is usually commercially produced and requires a common set of administration and scoring procedures
  b) compares an individual's test performance to the test performance of others
  c) relies only on multiple choice questions
  d) is designed and administered by a researcher for a specific research study

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Which of the following difficulty levels indicates the item that was the most difficult?
 
  a) 0.40
  b) 0.30
  c) 0.05
  d) 0.50