Which of the following is the best definition of dependent ...

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Which of the following is the best definition of dependent variable?
 
  It is the measured variable that may change depending upon manipulation of
  an experimental variable.
  It is any unmeasured variable that is not controlled within the context of the
  experiment.
  It is the variable that is intentionally manipulated by the researcher.
  It is one of the external variables that cannot be controlled by the researcher.

Question 2

Which of the following is the major drawback to observational research?
 
  It must be done in a laboratory setting.
  It cannot be generalized to other populations.
  It does not allow us to identify cause-and-effect relationships.
  It violates the ethical standards of research.

[k2629]

Answer to Question 1

It is the measured variable that may change depending upon manipulation of
an experimental variable.

Answer to Question 2

It does not allow us to identify cause-and-effect relationships.

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Thanks for the timely response, appreciate it

[samiel-sayed]

Wow, this really help