Are there other mental or personality factors that influence rate of recall?
Some low recallers seem to be less good at tasks involving visual imagination, such as when they have to look at a picture of a building made of blocks and then construct one out of blocks that are sitting in front of them. There may be other “cognitive skills” relating to the ability to imagine things that are important, too, but the research is not yet completely convincing on this point. As far as personality factors, which many people might think to be the main factor, studies using several personality tests don’t show either large or consistent relationships. Nor is there any evidence that some people are too “defensive” or “repressed” to remember their dreams. Several studies are pretty convincing on that point.