true testing means that a serious effort is made to falsify ("disprove") each possible
explanation.
true or false?

The statement given about the true testing mechanism is false.

Testing is the way toward assessing a framework or its component(s) with the plan to discover whether it fulfills the predefined necessities or not. It is a process of executing a framework so as to distinguish any holes, blunders, or missing prerequisites in as opposed to the real necessities.  

The concept of true testing is not to falsify all possible explanation. It means to come up with a solution which is true in all aspects.

it also supports my hypothesis. if you rest first you can squeeze the clothespin more times. from the data i collected the average of the eight people concluded exercise makes your muscles more fatigued and less able to squeeze the clothespin compared to resting before squeezing.

maritime tropical may be your answer.