So, you want all your participants to be able to enter the survey with one password?
Though there are better ways to achieve that, your approach should be
short text question (Q1) with question validation: Q1=="yourPassword"
This is found in "Logic", do not use the "validation" in "general options"
This way people cannot proceed without entering the correct password.
If you want them to be screened out, do it without validation, but create a quota with limit "0".
This way you have to create an equation (eq1) like "{if(Q1=="myPassword",1,0)}
And the quota is "eq1==0 --> screen out.
Joffm
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