IM – 5 | 10
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that only some blondes have more fun? Maybe only good-looking blondes have more fun?
But mightn’t nice-looking brunettes have more fun than homely blondes? This claim is too
vague be taken seriously.
3. We’d have to know how “smarter” was measured before we knew what to make of this.
4. ▲Fine, but don’t infer that they both grade the same. Maybe Smith gives 10 percent A’s
and 10 percent F’s, 20 percent B’s and 20 percent D’s, and 40 percent C’s, whereas Jones
gives everyone a C. Who do you think is the more discriminating grader, given this
breakdown?
5. Without breaking down into categories of crime, this kind of statistic is of little use. In
recent years, violent crime has gone down, although this has not been true of minor
property crimes.
6. More talented in what way? It may be that many classical musicians are unable to
improvise, because they play from written music. (We don’t know this for a fact, of
course.) And lumping all classical and rock musicians together makes the claim useless.
Are we comparing a drummer in an orchestra with a pianist in a popular band?
7. ▲Well, first of all, what is “long–distance”? Second, and more important, how is
endurance measured? People do debate such issues, but the best way to begin a debate on
this point would be by spelling out what you mean by “requires more endurance.”
Exercise 5-28
1. ▲Smarter in what way? This is too vague.
2. One hears this a lot in conversations among faculty. But some idea of how motivation is
measured is required to make much sense of the claim.
3. How will the level of religiousness be measured—by church attendance or by voting for
religious candidates? More religious quantitatively or qualitatively—and either of these
terms would have to be spelled out.