Due by 5 p.m. on Wednesday, February 27.  Statistics Quiz in SAKAI.  This will open by Friday February 22 and must be completed by 5 p.m. Wednesday, February 27.   To prepare for this quiz, you may do the  Optional Statistics  Practice Sheet.   We have not yet covered the "margin of error" items included on that practice sheet, however.  You have four tries on this quiz and the highest score counts.  The Answers to the Optional Statistics Practice Sheet are here.

Due by 5 p.m. on Monday, March 3.  Quiz Six covering Chapter Six in Babbie is due 5 p.m. on Monday, March 3.  You may take the quiz twice and the highest score will count.

Due by 5 p.m. on Friday, March 7:  Ayers Exercise 7, Part I, pages 185-198.  The online version of this will open in SAKAI by February 28.  If you miss the online deadline, you may hand it in on paper on Monday, March 10.   You get three tries on this exercise, and the software will tell you which ones are wrong.

Friday's Class will be in the SAKAI chat room at 10:10 to 11:05.

Reading:  Babbie, Chapter Six:  Indexes, Scales and Typologies. 

Notes and Links:

1. A powerpoint corresponding to this chapter is in Sakai/Resources/Week Six.  I think it is more understandable than the chapter in the book in this case.
2. There is also a second powerpoint showing the use of an abortion attitudes scale.  It is called AbortionAttitudesGSS
   
3. Page 171 in Ayers has a good discussion of the difference betwen an index and a scale.  He shows how to construct an index and then various kinds of scales.  We will deal only with index construction, which is covered in Part I of the exercise on pages 185-198.  We will construct the attitudinal homogeneity index described through page 178.  It illustrates the construction of an index and its use to predict divorce/separation.
4. Then we will get started on Exercise Seven.