What are the null and research hypotheses

Find a journal article that describes a study where researchers report the results of a t-test and its p-value. Answer the following questions.

1. What are the null and research hypotheses?
2. What is the value of the t-test statistic, the degrees of freedom, p-value and conclusion?
3. Does the study report only very clear-cut relationships as statistically significant?
4. What is the alpha level? If a different alpha level were used, would it change the conclusion?

For your posting, include a link to the full-text article or attach a copy of the pdf file of the article.