Answer:
D) Theory
Explanation:
I might be wrong, but when you have a theory you usually carry out multiple experiments to support it. I hope this helps :)
Thy decided to suddenly invade the Soviet Union.
the internal validity is still manipulated by the researcher and the DV is measured.
The DV is a variable that is being measured/observed, whereas the IV is a variable that is altered to see how it impacts something else. The term "dependent" refers to the idea that the IV will have an impact on the DV.
<h3>What parallels exist between studies conducted in a lab and those conducted in the field?</h3>
Since experiments are the only way to reliably establish causality, laboratory and field experiments are comparable in that they are both helpful in determining cause and effect. Furthermore, because there is a high level of control over confounding variables, the two experiment designs have the potential to have high internal validity.
Learn more about internal validity:
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Answer:
Socioeconomic status (SES) encompasses not just income but also ... which may place them at an economic disadvantage and potentially at lower ... By 2030, it is projected that 25 percent of older persons will be from ethnic minority groups.