Hi Ashish,

Not sure if you want to know 'process' for validating health education - particularly using 'media' - or materials for conducting your actual research. I'm going to assume the former - and attach some articles around media and health education - and socio-cognitive process (social learning theory) that I hope will assist you in terms of putting into place effective health education strategy

The traditional method for validating health communication materials is pretesting. There's a classic reference on communications pretesting by Jane T. Bertrand. Am not sure if it's available online because it was standard text in development communication grad achool in the seventies. But it has proven itself useful througout the years until now in our field work. Look it up.

Communications Pretesting, Media Monograph 6; Paperback – 1978

by Jane T., Bertrand-I think this is the text Alexander is referring to-although there are other texts that essentially use the same approach. Good luck