psychological lexicon.
             From the study they were able to find that in middle childhood there
             continues to be correlation between use of psychological lexicon and
             performance on tests of epistemic and emotional theory of mind.
             The comprehension of metacognitive language plays
             a key part in explaining children's performance on theory of mind tasks.
             Other findings they found were that in period when learning takes place the
             relationship between language and theory of the mind changes whereas in
             earlier development children's theory of mind was predicted by their verbal
             ability. They also revealed that school aged children expended their use of
             mental state language and acquire the meaning of the language. This study
             helps examines how children's use and understanding of mental state
             language contributes to theory of mind in middle childhood. This research
             study contributes to theory of mind as it explores elements that
             contribute. For example the study shown that children in primary school are
             gaining literacy skills which lets them have a greater understanding of
             mentalistic terms which help with their academic learning. It also shows
             that once children are in the middle childhood and have learnt more through
             school they begin to use simpler mental state language in their everyday
             ...