Operant conditioning is teaching someone something using rewards. Every time they do what you want, they get a reward. So in your example, you'd need to break down the toilet training process a bit. First the child needs to figure out that her body is telling her she has to use the bathroom. Then she needs to learn to tell that to you in time to go. Then she needs to actually go.
The term "<em>Conspiracy Theory</em>" is used to try to explain an event using explanation that involves illegal act that have been used to carry out the act.
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A cash crop is a crop that is produced for commercial use, instead of use by the grower. Virginia's cash crop was tobacco, although they grew many other crops.