Answer:
Informed
Explanation:
An informed voter is up to date on current issues and the policies of all of the candidates
Karma is a concept of Hinduism which explains through a system where beneficial effects are derived from past beneficial actions and harmful effects from past harmful actions, creating a system of actions and reactions throughout a soul's (Atman's) reincarnated lives forming a cycle of rebirth.
I think the word you're looking for is "hypothesis".
For example, a hypothesis could be "dogs drink more often when owners are present".
And then this can be proven (or dis-proven) by an observation (or in this case rather: measurement).
