Further work on sample selection

The following are the documents that are listed on the Ministry of Education website under Educational literature and materials. These materials seem to be considered among the important documents in the overviews of educational development by decade presented below.

I did not include the speeches given by Jiang Zemin at Beijing university and qinghua university but all of the others seem to be includable. Still i am missing a rationale for selection. I seek to do a census of all major policy documents regarding national educational development and reform after the beginning of the era of opening and refrom.
i also include in my sample important speeches about education from the leaders who span the three decades since opening and reform--dxp, jzm and hjt. these speeches are included due to the fact that they reflect the important source of ideas for educational policy. in the case of the jiang zemin conversation and hu jintao speeches on educational issues there has been an announcement requiring that it be studied widely. the deng xiaoping speeches were included as they were delivered at important national conferences at the very beginning of opening and reform and they represent very important seminal ideas and directions that lead to subsequent developments and reforms in educational policy. deng xiaoping lilun is frequently invoked at the start of educational policy documents as part of the communist canon.

There seems to be a problem that documents from the 1980s and 1990s are lacking if i wanted to do comparisons over time. What other variable relationship can i establish as a question if I do not use time as a comparison method?

The following are the documents I would like to include and my rationale for their inclusion:

20042003-2007年教育振兴行动计划 (overall plan for national educational development)
2002全国教育事业第十个五年计划 (10th five year plan for national educational development)
2001公民道德建设实施纲要 (national plan for moral (read ideological) education)
do not include? 江泽民在庆祝清华大学建校九十周年大会上的讲话 (could include as this also is an example of jzm ideas about education--it is likely slanted towards higher education)
2000关于教育问题的谈话 (jiang ze min offers comments on education that then affect further policy development at the national level? is this a source of slogans? people are then instructed to study this speech)
1999中共中央国务院关于深化教育改革，全面推进素质教育的决定 (important document regarding national educational development that educators at all levels are required to study)
1999面向21世纪教育振兴行动计划 (important document regarding national educational development that educators at all levels are required to study)
do not include? 江泽民在庆祝北京大学建校一百周年大会上的讲话 (could include as this also is an example of jzm ideas about education--it is likely slanted towards higher education)
1996全国教育事业“九五”计划和2010年发展规划 (ninth five year plan for educational development)
1994中共中央关于进一步加强和改进学校德育工作的若干意见 (document on moral education from the second decade of opening and reform)
1994国务院关于《中国教育改革和发展纲要》的实施意见 (important document regarding national educational development)
1993中国教育改革和发展纲要 (important document regarding national educational development)
1985 中共中央关于教育体制改革的决定 (first guiding document about educational reform since the beginning of opening and reform)

In addition I would like to consider including

1977 Deng Xiaoping's "Some comments on work in Science and Education"
(in Chinese)关于科学和教育工作的几点意见 (contains seminal ideas regarding the direction of national educational development at the start of opening and reform)
1978 Deng Xiaoping's talk at the National Conference on Education
(in Chinese) 在全国教育工作会议上的讲话 (contains seminal ideas regarding the direction of national educational development at the start of opening and reform)
1986中共中央关于社会主义精神文明建设指导方针的决议 (this is not direclty related to education but it describes the ideological climate at the end of the first decade of opening and reform and also has relevance to education)
2007教育部关于学习、宣传和全面贯彻《国家教育事业发展“十一五”规划纲要》的通知
2007 国务院批转教育部国家教育事业发展“十一五”规划纲要的通知 (11th five year plan for national educational development)
2006中共教育部党组关于学习贯彻胡锦涛总书记讲话精神切实加强社会主义荣辱观教育的通知 (the ministry of education requires everyone to study the speech of Hu Jintao regarding strengthening socialist education)
do i also want to include the people's daily peice that everyone was encouraged to study at some point?...
2000《全社会都要关心支持教育事业》。
1995 《“211工程”总体建设规划》。
how about this one, the 211 project. this is really only about higher education...should i include about higher ed too? how about the major documents about basic ed? how about vocational ed? how about sweeping out illiteracy? how about pre school? how about adult ed? it all seems to spiral out of control. originally i was thinking of only looking at basic ed and that seems somehow intrinsic to the way i am thinking. if i included all of these i could code the document according to the document type and then say things about differences between document types? i would have a larger sample but that would be sooo much more work. currently i have 18 documents under consideration.
type one: national plans for educational development
type two: speeches by the president about education
type three: basic education seminal documents
type four: higher education seminal documents
type five: vocational education seminal documents
type six: rural education seminal documetns
type seven: minority educatoin seminal documents
type eight: documents regarding moral/political/ideological educational development.