The answer is: his study does not qualify as an experiment. For the study to be an experiment, Dr. Kline would have to manipulate the independent variable in a group (for example, apply a certain treatment) and also have a control group to which he doesn’t apply such treatment.
In this case, the study is an observational study because he only observed the subjects that were in the zoo that morning and measured the variable of his interest, that is the environmental attitude of the visitors, he did not apply a certain treatment to the group nor manipulate any variable.
Violated because they were taking over their land. Native Americans were probably also scared of their weapons and didn’t know how much power they had
Hope this helps :)
The modern doctrine of informed consent has also significant implications for medical trials of medications, devices or procedures . Adequate informed consent is one way of showing respect to a person's dignity. It is always important to ask permission to a person before conducting any healthcare interventions, or when disclosing a personal information.
