I like to put some sort of validation on my contact forms, I have used recaptcha and a math question in the past with no problems.
I am now building a site for which the client's service is helping people with literacy and learning difficulties. While its most likely its their carers that will be visiting the site, I would like to make my form as easy to use as possible, while still having the form validation on there.
Any suggestions? I like the idea of the switch you have to toggle before sending the form but I'm not sure how effective that is.