I have always appreciated Dr Ruf's work in the field but I just have a feeling that her blog posts on this topic are more a marketing exercise than a ground breaking discovery. She has posted two blog posts in the past month on the topic and made numerous responses to people asking questions and the one constant is that her Ruf Estimates Kids IQ Test solves the problem she has discovered.
The issue she has discovered may well be a real problem but I think it is inappropriate, with little data to back up her claims, to subtly encourage parents to spend more money on testing (particularly on her test) to ensure they get an accurate result.
More appropriate would be a discussion about what other reasons there may be for the changes in scores, or acknowledgement that she has only been testing on the new tests for a couple of months, so a clear picture is near impossible.
I am sure all her followers would benefit more from a balanced discussion and less sales pitch.
