Factors other than the survey by itself can influence responses. For example, the gender or ethnicity of the interviewer may influence participants. These factors are known as:

A. reliability factors.
B. internal factors.
C. extraneous factors.
D. validity re-test factors

C. extraneous factors.

Explanation:

Factors other than the survey by itself can influence responses. For example, the gender or ethnicity of the interviewer may influence participants. These factors are known as: extraneous factors. They are unwanted factors in research which could negatively influence/confound the data of a study if not accounted for. All other factors that could contribute to the study data/result other than the factors in consideration are extraneous factors.

the federal government of the united states was established by the constitution. us is a presidential republic. the president is head of state, head of government and of a two party legislative and electoral system. the supreme court balances the powers of the federal and the state government. yhe executive branch is headed by the oresident. there are two chambers of congress, the senate and the house of representatives. judicial power is exercised by the judicial branch (or judiciary), comprised of the supreme court and lower federal courts. the judiciary's function is to interpret the   constitution as well as the federal laws and regulations.