Intelligence and Raising Intellectual Ability

1. Some popular educational methods and products, claim that the use of certain highly stimulating methods will help infants and small children develop greater levels of intelligence, creativity, and academic ability.
2. Do some outside research (you can use Google for this) and identify one or more of these so called "high success" methods, then describe how the method supposedly works?
3. What are the levels of success this product or method claims to achieve?
4. How much does this method/product seem to rely on personal stories/anecdotes, a single "independent" study, promotion by a well-known celebrity, testimonials by teachers or parents, etc.
5. Now what is the actual "hard evidence" or scientific support that this method actually increases intelligence, creativity, and/or academic ability?
6. Assume there was some success using this method, what could be alternative and sometimes obvious explanations for this methods success?

Please - ANSWER ALL QUESTIONS