Discuss external validity. Name two threats that might weaken external validity. What will be an ...

Discuss external validity. Name two threats that might weaken external validity.
 
  What will be an ideal response?

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If we include items assessing memory, logic, and verbal comprehension on an intelligence test  as opposed to food preferences or shoe size  then we have satisfied which of the following types of validity?
 
  a. Discriminant
  b. Convergent
  c. Face
  d. Internal

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_______________ studies collect numerical data, while _______________studies collect non-numerical data.
 
  a. Qualitative; quantitative
  b. Experimental; descriptive
  c. Quantitative; qualitative
  d. Quantity ; quality

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Discuss interrupted time series and equivalent time series. What might be the advantage of the equivalent series?
 
  What will be an ideal response?

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Jenna would like to establish the reliability of a new measure of self-esteem but she doesn't have enough time to administer her test more than once. Which of the following methods of establishing reliability would you suggest to Jenna?
 
  a. Equivalent forms
  b. Internal consistency
  c. Multidimensional
  d. Concurrent