Define internal validity in research design. Describe two threats ...

[bucstennis@aim.com]

Define internal validity in research design. Describe two threats to the internal validity of a research study. (Note: For each threat, be sure to label it, describe it, and be sure to indicate how it specifically is a threat to the internal validity of the design.)
 
  What will be an ideal response?

Question 2

The group you wish to generalize to is the ____.
 
  a. sample
 b. population
 c. theoretical population
  d. accessible population

[laurnthompson]

Answer to Question 1

Internal validity is the degree to which a study allows only one, unambiguous explanation for the results. Threats to internal validity include environmental factors, assignment bias, or any threat specific for studies comparing one group over time. In each case, the threat provides an alternative explanation for any differences that are found between the treatment conditions.

Answer to Question 2

b

[bucstennis@aim.com]

Wow, this really help

[ashely1112]

Great answer, keep it coming