Aresearcher is interested in variables that may affect an individual's driving ability. he has people drive a course in wet, dry, or icy conditions. in addition, he has them drive a vehicle with or without power steering, and with an automatic or a manual transmission. this design is an example of a factorial.

3x2x2

Explanation:

Based on the information provided within the question it can be said that this design is an example of a 3x2x2 factorial. This is because there are 3 different variables being tested. The first is the condition of the course which has wet, dry, or icy (3). Secondly is power steering, with or without (2). Lastly is with automatic or manual transmission (2). Hence the factorial 3x2x2.

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.        

a. the moon was locked into orbit by the earths gravity as it was passing by and capture hypothesis i think