I'm doing my dissertation/thesis and although not necessary i wanted to create a website that would collect my results. As my thesis is on "The emotional response the use of music in film has on the audience" a website would be the easiest way of collecting my data

I have an idea of upon entering the website you type your email address and it shows the content for my thesis where there will be text boxes that allow you to enter your emotions.

What i need help with is the coding for how i would set it up so the person can only partake once per email and also how it would collect the results.

any help would be great!