Your homework for this week focusses on variables and units of analysis.  You are to locate a research article on the web that reports the causal analysis of two or more variables.  In your homework:

                             (1) Report the URL (web address) of the article.

                             (2) Identify at least one dependent variable and one independent variable.
                                    Copy and paste from the article one or more short  passages to justify
                                    your choices.

                             (3) What is the unit of analysis for the study?  Copy and paste a short passage
                                    from the article to justify your answer.

                       IMPORTANT:  If you have difficulty answering the questions I've asked, the article
                                                    you've chosen may not be appropriate to the  assignment.  You should
                                                    be prepared to review several articles before settling on one that is
                                                    appropriate.