What are the two ways of assessing measurement validity that involves only expert judgments and not data

Plz 20 ! in a citizens elect the president as head of government separately from the legislature? a: parliamentary democracy b: communist state c: presidential democracy d: autocratic state

The history of ethical regulations in human subjects research began with the: a. declaration of helsinkib. nuremburg codec. common ruled. belmont report

Which of the following studies is linked most directly to the establishment of the national research act in 1974 and ultimately to the belmont report and federal regulations for human subject protection? a. the public health service tuskegee study of untreated syphilis in the negro male. b. stanford prison experiment (zimbardo).c. tearoom trade study (humphreys).d. the harvard t3 study.