We would like you to assess the QUALITY of each of the following argument (discussing Gay Marriage) and determine if the argument is Valid or Invalid. A valid argument is clearly interpretable and either expresses an argument, or a premise or a conclusion that can be used in an argument for the topic of gay marriage. An invalid argument is a phrase that cannot be interpreted as an argument or not on the topic of gay marriage.

I also think moving from state to state for gays would become more of an economical issue than because of other reasons (i.e. like what that state has to offer it's residents).
Valid

If the genders are equal under the law, then restricting marriage based on gender is unconstitutional.
Valid

However, by comparison, the 1977 survey was truly random, and so its results should certainly be given more weight.

Invalid