An American educator James Powell thorain@my-deja.com 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.

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

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

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

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

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

6. 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.

Become a Signatory to the FATHERS' MANIFESTOsm 

Copyright @ 2010 by Fathers' Manifesto & Christian Party