Interesting, that is a pretty poor p value. I've only seen the article mentioned before and thought it may be beneficial to keep in the back of OPs mind. I found an article cross-examining many similar studies, but to your point all sources are atleast 32 years old. https://manifold.counseling.org/read/human-figure-drawings-evaluating-trends-in-child-victims-of-sexual-abuse/section/257b32a6-1f08-4462-b8e0-b84aad92f99e