One weakness associated with cause-probing correlational research

Question 1

One weakness associated with cause-probing correlational research is which of the following?

Problem of self-selection into groups

Difficulty in linking the research to a theoretical framework

Inability to generalize the findings beyond the sample

Artificiality of the settings in which it occurs

Question 2

Which of the following is the most effective method for controlling participant factors?

Using a homogeneous sample

Statistical control

Matching subjects