BONUS: When Mr. Bowen leaves Tabor City Middle School, he drive 60 miles. If it takes Mr. Bowen an hour to get to his destination, what was his average speed? *

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.        

c: in the east might be the correct answer