Diana and Kinsey are put in charge of choosing a mascot for their basketball team. There are fifteen players on the team, but Diana and Kinsey survey only the five players on the starting lineup about their favorite mascot. Which best describes this error in data collection?

The data are inadequate.
The data are false.
The data were recorded incorrectly.
The data cannot be reproduced.

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.        

answer; i believe the correct answer is (federalist);

dont understand question can you makeit more better