1. In what situation would a researcher want to use a stratified random sample? 2. Explain why probability samples can be difficult to collect. 3. The majority of psychological research studies...

1. In what situation would a researcher want to use a stratified random sample?

2. Explain why probability samples can be difficult to collect.

3. The majority of psychological research studies utilize convenience samples. What consequence do you think this has for generalizing the results? Is this a serious problem? Why or why not?