The gold standard of research designs are: Question 30 options: a) Adequate sample sizes b) Randomized controlled trials c) Free of known bias d) Adequate pilot testing

b) Randomized controlled trials

Explanation:

Randomized controlled trials are usually viewed as the "gold standard of research designs" because they have a great potential of limiting or even eliminating all sorts of bias, and, therefore, provide the highest level of evidence when performing a research.

The answer is b) Randomized controlled trials

B) Randomized Controlled trials

Explanation:

Randomized controlled trial is (RCT) study in which people are allocated at random  to receive one of several clinical interventions.A Randomized Controlled Trial is an experiment or study conducted in such a way that as many sources of bias as possible are removed from the process.

Of all the many ways research can be conducted, the gold standard level of proof where treatments and therapies are concerned is the Randomized Controlled Trial (RCT). ...

answer; the correct answer to the above statement is to increase the production of milk in a herd of milk cows, the highest producing cows were chosen as the mother;

facts: the 14th amendment

the 14th amendment addresses citizenship rights and equal protection of the laws.

the 14th amendment was intended to protect the rights of former slaves after the american civil war.

the 14th amendment was approved by congress in june of 1866 and ratified by the states on july 9, 1868.

the 14th amendment establishes that all persons born in the united states are citizens and are guaranteed all the rights of citizenship.

the 14th amendment establishes that the law protects all citizens equally.

in this case the passage of the 14th amendment   that was violated was the last part in which it states that there is equal protection of the law.