Answer: the answer is B hopes this helps
Answer:
Internal validity.
Explanation:
Internal validity is the study in which trust relationship is build between treatment and outcome. This relationship is known as <em>cause-and-effect. </em>
In this type research, the studies are based on whether the finding is questionable or not. The research which can overrule the possibility of alternative explanations of our findings is internally valid.
The threats of internal valid study are:
- <u>Natural Improvement </u>
- <u>Maturation</u>
- <u>Historical Events</u>
- <u>Placebo effects</u>
- <u>Nonspecific effects</u>.
So, the correct answer is 'Internal validity'.
2.3% is the correct answer.
Thousands of people start smoking cigarettes every day in the Unites States, and about 70% of long term smokers want to quit smoking. However, according to the Centers for Disease Control and Prevention, the likelihood that professor Williamson will have achieved sustained abstinence by the end of the year is only 2.3%.
Directoffered some rights to the local
populationplaced heavy restrictions on the
local populationallowed the local population to
participate in governmentgave the local population no rights
Indirect Control
did not give the local population
positions in governmentforced the local population to adapt
<span>to European culture</span>
