Answer:
Political cartoons can be very funny, especially if you understand the issue that they're commenting on. Their main purpose, though, is not to amuse you but to persuade you. A good political cartoon makes you think about current events, but it also tries to sway your opinion toward the cartoonist's point of view.
The answer here is meta-analysis.
We can see here that Dr O'Connor is using meta-analysis because she is examining the 170 studies that have been done on the topic to find out the truth that lies behind theses similar studies. Meta-analysis in essence is a statistical analysis done on the results of the previous studies on a certain topic or in a certain field as it combines all of those findings to get an overall result.
Paul Ekman
Ekman conducted a series of studies through which he found that there are six basic human emotions that are found globally across cultures and geography. These emotions are:
1. Anger
2. Disgust
3. Fear
4. Surprise
5. Happiness
6. Sadness
Ekman claimed that these universal emotions are primarily expressed through facial expressions.
