dd being assessed by ed psych in 2 weeks - what input should we have?

[YeahBut]

That's it really. Dd1 was identified as having some learning difficulties by the school in reception. She's been working with the SENCo at school and a SAL therapist who feel that she now needs to be seen by an ed. pysch. Everyone seems to feel that something "is not quite as it should be" but can't identify what "it" is. Anyway, it looks as though she will be meeting with an the ed. pysch in a couple of weeks who will be doing observations in the class as well as one to one assessment. My question to other parents who have been through this is what sort of input should we have. What sort of information should we be giving to the ed psych? What's relevant etc? Would appreciate any advice on this.
(BTW, we're not in the UK. Dd1 attends an international school that follows the British national curriculum but we aren't bound by the same LEA / statementing issues. Ed. psych is coming over from the UK to assess a number of children at the school.)

Our ed psych suggested we provide (i) copies of any other reports done by relevant people - so eg if your SAL therapist did a report, send that; (ii) "anything else we thought useful" so I did a little character portrait of ds, describing him from birth on - actually it wasn't little, it was about 4-5 pages of typed A4. The ed psych thought that specially helpful, and it meant he knew my exact concerns & could address them (so it was helpful to me too).

Ours spent about 1 hr with us (me and DH, though she usually only sees one parent), then approx 30min individual play with DS1, 20min interview with school leader and 30mins or so observing DS1 in normal class situation.

She asked to see IEP and reviews and would have wanted any other reports (esp SALT) but as she was the first professional we saw we didn't have any.

Her time with us was a semi-structured interview covering DS1s communication, motor skills, cognitive skills, self-help skills etc. WE just told her enverything we could think of, and left her to decide what was relevant and what completely normal.

Bink's idea of doing your own report is good, or at least write a few notes of things you'd like her to know, so you don't come out afterwards saying "I wish we'd discussed that".

Bumping for any more advice. Thank you.

Everything that has been said below is fine.

I would write down a little summary of dd from birth.
Any concerns that you have and her strengths and weaknesses.

Don't hold back, mention everything even if you don't feel it is that relevant.