In the following scenario which option identifies the type of variable represented by age A researcher wants to study the relationship between age and resting heart rate she selects subjects and record their age and heart rate
A. attribute variable
B dependent variable
C operational variable
D confounding variable

Which best describes the scientific method? a. a path of clearly defined steps that must be followed in a particular order b. a possible answer to a scientific question based on knowledge or research c. the recipe for how to conduct an experiment that must be followed precisely d. the process of hypothesis and testing through which scientific inquiry occurs