What is the percentage of any survey that can consider as valid?

i'm doing social research survey.and i'm curios of the sample size that i should take so that my survey result would be valid.can anyone help me..thanx

What is the percentage of any survey that can consider as valid?
1 in 100 or 1 in 1000. Make sure you do it in a wide array of regions, though or else you will get bias results because you were in a subgroup, like just people on school campus,or dorm yards, spread it out through your town/city
Reply:before deciding the sample size, what is the size of the population you are going to consider?..i mean, for a particular area, there may be a defined population level, apprx...the higher the sample size, the more accurate your survey would be...if your survey needs greater accuracy, go for a higher sample size..





for moderately accurate surveys, go for a 30% sample size..but if the population size is high, say 1000 or so within a short duration of time, then go for a lesser sample size..

CAT