To be sure, the type of research that would look at the connection between being read bed-time stories and robbing a store is very likely to use hierarchical linear modeling (HLM), which does produce predictions.<p>For example, in his HLM book Andy Gelman looks at the relationship between radon in homes and lung cancer. Replace radon with being read stories, and lung cancer with robbing a neighborhood store, and you&#x27;re in business. The key is that he interprets (with, say, confidence intervals) the model rather than emphasize null hypothesis significance testing.