Internal validity is also referred to as

a. both causal and measurement validity

b. measurement validity

c. causal validity

d. external validity

e. cross-population generalizability

After having your fifteenth candy bar we can assess that you would have? a. negative utility b. high utility c. low utility d. a sixteenth candy bar

What does the creature say is the reason for his bloodthirsty, fiendish behavior?

Answer the following question with at least three complete sentences. be sure to use specific examples from the lessons in your answer. why were the ancient greeks known as great thinkers?