I recently posted a question about breakfast and weight gain (loss)
and received information on a couple of studies showing an indirect
beneficial result from eating breakfast.  Unfortunately, none of these
studies tested the effects of eating breakfast as the only variable in
the weight loss.  It was suggested that eating breakfast allowed a
person to eat less calories during the day.

I want to know the effects of eating or not eating breakfast alone
without being mixed in with any other variables.  For example, if a
person consumes 2,000 calories per day but takes them all after noon,
would they benefit by adding a 400 calorie breakfast in the morning? 
Would they not, in fact gain weight?  Or if someone is used to eating
2,000 calories after noon, would they benefit from spreading out those
calories by eating 400 in the morning and 1,600 after noon?  Does the
timing of calorie intake make any difference or is it simply the
quantity of calories consumed?

The ideal study would have a statistically valid number of twins eat
exactly the same calories and exercise except that one would add a
breakfast and the other would not eat breakfast.  Or one would eat the
same foods but earlier in the day.

I will accept either:
1) Summaries of a statistically valid study showing the effects of
breakfast alone on weight gain (loss).  This variable should be
isolated so that the breakfast component is tested. or,
2) Information on how to do my own clinical trial to answer this
question in a cost effective manner.  How do you find the twins? etc.