Dr. Jefferson is a psychologist interested in 4-year-old Shawn's knowledge of the differences between animals and vehicles. The psychologist gives Shawn a multiple-choice picture test in which he must write the letter of the correct answer on a separate piece of paper. However, Shawn has trouble identifying and writing some letters. On two separate occasions, Shawn receives the same score on the test. This method has validity and reliability poor; good poor; poor good; poor good; good

poor; good

Explanation:

Validity: In research, the term "validity" is determined as the extent or degree to which a specific test or research claims to compute or measure. However, it is considered as important for a test or a research to be valid in order to for the results to be properly interpreted and accurately applied.

Reliability: In research, the term "reliability" is determined as the consistency of a particular test or research. In other words, a particular test should give rise to the similar results if measured at an interval of time.

In the question above, the given method has poor validity and good reliability.

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.

well this isn't a question but if you are asking if it is true or false it is, true.