Reddit mentions of Displaying Your Findings: A Practical Guide for Creating Figures, Posters, and Presentations

I have found the APA style manual (pg. 128-150) and Nicol and Pexman's book helpful in designing tables and figures.

Off the top of my head:

• put the table number and title in the body of the text, and dbl space
  
  
• remove all vertical borders (5.17 in style manual)
  
  
• if you are presenting "rates across conditions", then one of your columns should display conditions (or call this "rates under different criterions")
  
  
• did you provide tasks as a reinforcer? if so, then column two is OK but you might want to consider reducing the text to make it easier to read at-a-glance
  
  
• if possible, try to make each row have the same width height (kinda relates to 5.17 in style manual, with regard to white space)
  
  Edit: See above (though it might be good to balance the widths of the columns too).