i need help comming up with a really good science research experient

[streets8542]

can some one please help me get an idea or give me some sites that can help me come up with one...i want to do some thing psychology related but it needs to be a really complicated and interesting experiment

[Genecks]

http://allpsych.com/psychology101/perception.html

[Glider]

Why does it need to be really complicated?