Forming a Hypothesis
To find an answer to a question, a hypothesis is formed. A hypothesis is a possible explanation for the question. They can be proven false, but can never be proven absolutely true. This allows other people the ability to verify the results, and leaves the chance to find better explanations as our understanding grows.
Removing personal feelings
To help remove any personal feelings that may be added when a hypothesis is formed, multiple hypotheses are typically proposed. This causes all of the hypotheses to be tested harder in order to throw away the false explanations.
Back to Betsy and our example...
Betsy has begun thinking of all sorts of possible explanations. How might Betsy test these hypotheses? How would you test them?