True or false colonies were the first established by Greece around 700 b. c. to supply food

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; quantitative versus qualitative research;

answer; and function;