** An American
educator James Powell [email protected] wrote **

http://x36.deja.com/[ST_rn=ap]/getdoc.xp?AN=485309598&search=thread&CONTEXT=928439630.1428553802&HIT_CONTEXT=928439630.1428553802&HIT_NUM=2&hitnum=245

** Let me try to explain this using
very simple concepts. Try to keep up, John. **

**Let C represent the total teacher population
of a country.**

**Let T represent that percent of C that
actually participated in the [a] study. **

**T is a subset of C, therefore T does not
equal C. **

**In fact, T will be significantly smaller than
C.**

**1.) above represents the percent of C that
are male.**

**2.) above represents the percent of T that
are male.**

**These are INDEPENDENT measures. There is no
reason to expect a relationship between the two. There is no indication that the [ ] study
attempted to select classes that reflected the overall percentage of teachers in the
country. **

Take the
Math Challenge View the
Results of the Math Challenge

**The Math Challenge is this: assume that "T"
above is a randomly selected subset of "C" above. **

**Is it your opinion that James is correct, that these are
indeed independent measures, that there is no reason to expect a relationship between the
two? If so, please explain your reasoning in the "comments" area of the Take the
Math Challenge page linked above.**

**Is it your opinion that James is incorrect, that these are
dependent measures, that there is a direct correspondence between the percent of male
teachers in both "C" and "T", and that this relationship depends on
the sample size of "T"? If so, please explain your reasoning in the
"comments" area of the Take the
Math Challenge page linked above.**

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