I believe the answer is: increasing generalizability
Generalizability refers to the extend that a conclusion of a research could be applicable to different people. As generalizability goes higher, The reliability of the measurement would be increased. and it could easily be replicable even if the test subjects are drastically altered.
The social security program was started in 1935.
2018 - 1935 = 83 years
<span>leadership..............</span>
The correct answer is pressure groups. These are groups who push for something to change or have programs to raise awareness about a certain problem. For example, global warming is an issue, so people form a group of citizens who fight to raise awareness about it and have the congress change legislature about oil consumption.
