1 A small 3-ounce piece of meat has about 21 grams of protein. A typical 8-ounce piece of meat could have over 50 grams of protein. 2  One 8-ounce container of yogurt has about 11 grams of protein. 3  One cup of milk has 8 grams of protein.  One cup of dry beans has about 16 grams of protein.
All of these aspects of peanut growth can be measured and can be used as dependent variables in an experiment. There are different dependent variables possible in an experiment. The investigator can choose the one he thinks is most important, or he can choose to measure more than one dependent variable.
A variable is either a result of some force or is itself the force that causes a change in another variable. In experiments, these are called dependent and independent variables respectively.When a researcher gives an active drug to one group of people and a placebo, or inactive drug, to another group of people, the independent variable is the drug treatment.herefore in experiments, a researcher manipulates an independent variable to determine if it causes a change in the dependent variable. Case example of independent and dependent variables As we learned earlier in a descriptive study, variables are not manipulated.