The teachings of Siddhartha Gautama led to C) Buddhism.
Answer:
The main threat to internal validity here is History.
Explanation:
Internal validity refers to how well a research is conducted. Internal validity determines if it's the independent variable (or another factor) that caused or resulted in the change in the dependent variable.
History here alludes to the internal validity threat that refers to events outside of the experimental setting (increase in cigarette taxes) that may affect the dependent variable (smoking cessation).
Answer:
the limitation of his investigation is amount of involvement that he can have.
Explanation:
By choosing a descriptive investigation method, the student is limited to creating a highly detailed description of the bacteria but cannot investigate and answer the more important questions such as how to grow the bacteria. An experimental investigation would allow the student to test different methods of growing the bacteria and compare them to see which one is actually the most effective. Thus the limitation of his investigation is amount of involvement that he can have.
Answer:
They are primarily representing the wishes of his or her constituents.
