Navigate to the Tests option within the Tests section. Select the active test you want to review (all active tests are in a blue rectangle). You are then directed to the summary page of the test. 

In the middle of the screen you can see the main graph area with the daily breakdown of the performance. You can display 4 main metrics here: the CTR, the ranking, the clicks and the impressions. You can do this by clicking on the button associated with them in the upper right corner. 

The performance for each variation is only displayed on the graph once the test already reached the time period allocated to the particular variation.

In addition to the results of each variation, you can also see the baseline data. These can be seen for each metric as well and are represented by a dotted line. The baseline is the performance of the metadata previously set in your Wordpress and represents the combined average of the last 30 day’s performance.