Which study or survey described below would be the most reliable source for your presentation?
A) the Democratic National Committee's survey that indicates most Americans want roads and bridges maintained even if that requires higher taxes
B) a study of ten dentists that shows most of them recommend Colgate toothpaste
C) a women's magazine report on how satisfying the romantic relationships of their readers are compared with the general population
D) an independent polling firm's national survey showing an increasingly old and white Republican Party

Question

Quizplus · Accepted Answer

The independent polling firm's national survey is likely the most reliable because it is conducted by an independent party with no vested interest in the outcome and covers a broad population. The other options are either biased (option A with the Democratic National Committee) or have a small sample size with limited applicability (option B with ten dentists and option C with a specific magazine's readership).

Which Study or Survey Described Below Would Be the Most