I'm looking for any published work or references related to "Pictures are better than words in terms of memory recall" for our research paper. Thank you
My suggestion would be to look at Working Memory and processing. There is a decent body of research that shows that processing is easier when we associate something with an image. By increasing the efficiency of processing, you increase the likelihood of memorization!
This may not be a direct answer to your question, but I hope it gives you a new lead for your literary search!
some 30 years ago I dealt with this problem aera looking at it from a somewhat different angle than Steffens' and Stülpnagel#s group, or Johannes Engelkamp and Hubert Zimmer did at the time.
My/our research perspective centered on the question as to whether either a symbolic code (i.e. language) or an analogue code (i.e. pictures), or a combination of these two might be superior in initial acquisition of motor skills typically taught in phys.ed. classes.
The theoretical rationale was the assumption of a verbal code, a picture code, and a motor code being interrelated to some extent, and that these codes combined in a certain way could effectively be used to boost (free) recall of the initialy learned concepts/movements. Specifically we tested to what extent picture-text-combinations might be superior to using just pictures or text in initial motor skill acquisition in children as compared to adults.
In order to assess visual scanning strategies of our participants, we implemented eye movement recording.
What we found, was that picture-text combinations (according to Bock's "semantic discrepancy hypothesis", and relying on Joachim Hoffmann's idea of "primary concepts" ("Primäbegriffe") were clearly superior to either picture or text information in children (given that they really looked at the verbalinformation component!), and - if task constrainnts were sufficiently demanding - also in adults, when these subjects had to reproduce (free recall, "enactment", you would probably say) the repsective complex movements.
Unfortunately, most of our group's publications from those early years are in German. The little there is in English I am going to attach to this post. There are some articles and books available, too - but all in German.