Problem:
Article: Little evidence for sex or ovarian hormone influences on affective variability
Questions:
Q1. How was the study conducted (e.g. sample, correlation or experimental)?
Q2. What were their sample sizes and/or inclusion/exclusion criteria for sampling?
Q3. How were variables measured (in other words, what instrument did they use: things like heartrate, hormonal levels, self-report, scores on a scale, etc)?
Q4. What did they find?