Hi, there are some threads on the forum that you might find useful for these criteria
Enter ' Explain how levels of speech and language development vary between children' on the
search page
On page 412 of the collins handbook -
on amazon.co.uk it recognises the importance of parents and carers in being able to support children, and so enable the positive effects. It goes on to list what these effects include;
Develops children's self-confidence
Increases children's self-esteem and enhances their wellbeing
Improves children's ability to interact socially with others
Develop children's ability to express their feelings and manage their behaviour
enrich children's involvement in speaking and listening activities
Reduce the number of referrals for specialist speech, language and communication support
Hth