You want to get feedback from five years old kids on a new toy?

The difference between the lower class limits of adjacent classes provides the

Janette goes into an electronics superstore to buy a new computer. the salesperson works with her to find the right model, and she agrees to buy a new computer for $500 and a floor-model 18-inch monitor for $100. just when she is ready to pay, the salesperson walks away for a minute and then comes back to inform her that the monitor she was ready to purchase can't be sold for < $125. she agrees to the extra $25 even though they had initially agreed on the $100 selling price. janette has fallen for the technique of gaining compliance.

Which term describes a possible explanation of, or answer to, a scientific question that is based on prior knowledge or research and that is testable?