Researchers studying the relationship between honesty, age and selfcontrol conducted an experiment on ltl children between the ages of 5 and [5. The researchers asked each child to toss a fair coin in private and to record the outcome (white or black] on a paper sheet and said the}.r 1Would only reward children who report white. Half the students were explicitly told not to cheati and the others Were not given any eXplicit instructions. Differences were observed in the cheating rates in the instruction and no instruction groups1 as Well as some differences across children's characteristics within each group {Bucciol and Pio'te'esan1 2st I). a} Identifyf the population of interest and the sample in this study. is} Comment on whether the results ofthe stud}.r can be generalized to the population; and ifthe findings of the study can be used to establish causal relationships