Professor Thames tried to use a Guttman scale on his data set that he had seen published in a major journal. Thames was upset because the items did not form a Guttman scale on his data. Confused, he asked for your help. You should tell him that:

a. the article that appeared in the journal was probably an error
b. he should recheck his scaling techniques because he probably made an error.
c. items may form a Guttman scale in one sample but not in another.
d. it was probably not a very good scale.
e. none of these choices.

Which of the following selections is least useful for supporting the claim that states intentionally built unequal school systems? question 1 options: the supreme court ruling in plessy v. ferguson (1896) wrote into law that america had two separate societies: one black and one white. it was very clear by the mid-1900s that southern states had expertly built separate educational systems. these schools, however, were never equal. states with laws keeping schools segregated never gave equal amounts of money to their black and white schools. ten years after brown, fewer than 10 percent of southern public schools had integrated. some areas did not comply at all.