Public vs. Private School Debate: Are Vouchers Really Worth It?

Lately I have been getting a lot of spam on school vouchers, both for and against. As much as I am interested in the issue, I really don't like it when people kill trees to leave stuff on my front door. But it does show the importance of the issue of school vouchers, and how much both sides are dedicated to getting their way.

I've blogged in the past about the school voucher system as was passed by the State Legislature, with both the flaws and the benefits. But that is just looking at the funding, legality, and requirements set by the State. I have also seen the video as suggested by Jordan Gunderson in his blog, but I want everyone watching that to keep in mind that sensational journalism (i.e. yellow journalism) is there for the shock value, and needs to be taken with a grain of salt.

The core question here is whether or not there is real benefit to students entering private vs. public schools. That's the question that most pro-voucher organizations have not addressed, assuming that the school system in private schools are superior due to higher graduation rates. Anti-voucher organizations say it's because the same level of funding is not available for public schools, and that's the only problem.

So, I thought I would do what most people seem not to do when they come to a problem: Check the research. Because of the national attention the school voucher system is getting, it was quite easy to find some scholarly records both for and against vouchers, based on hard research. I will be looking at two in this blog, but if you are interested in viewing them all, I highly recommend you do a search in Google Scholar.

Educational Vouchers: Effectiveness, Choice, and Costs Henry M. Levin, Journal of Policy Analysis and Management, Vol. 17, No. 3, P. 373

Henry M. Levin asks three questions:
1. Will vouchers improve student achievement?
2. Who will choose and what are the education consequences?
3. What is the evidence on comparative costs of public vs. private schools and on the costs of a voucher system?

Now, in the article, Levin also points out that he has been a proponent for vouchers in the past, outlining the benefits of a voucher experiment in inner-city areas. But he also has pointed out that with the private benefits of vouchers, there is a social cost based on greater inequality and further deterioration of a common educational experience. So, now knowing his bias, he begins to outline the answers that he found based on the above three questions.

1. Will vouchers improve student achievement?
First, a disclaimer (which I find very significant): Levin outlines that controls are very difficult, because in making the choice between a private or public school the family willing to make the decision is very educationally minded, while most families that do not consider the decision are not. Family orientation on education has a huge impact on student success in any classroom. More on that point later. ^_^

The first study was made by Coleman, Hoffer, and Kilgore (1982) comparing Catholic private schools with public schools at the 10th grade level. Their findings saw slightly higher achievement in the private school sector (0.12 to 0.29 deviation points). Note that the standard deviation for any survey or statistical sample is generally between 0.05 to 0.008 (for highly rigorous statistical analysis). This should give you an idea of the degree of deviation. It was then quickly criticized, and a new study was conducted, as outlined by Goldberger and Cain in 1982. When Willms made adjustments for the statistical problems, the private school advantages were greatly reduced or eliminated.

The next evaluation, the Longitudinal results for students through their sophomore to senior years, found 0.1 as the standard deviation in achievement as an advantage. It resulted in only a 10 point increase in the SAT scores, which is not very significant. There was also an achievement overlap that gave 46% of public schools higher scores than private schools.

Levin then sites more recent statistical studies that have found no differences in achievement, or only minimal differences with comparable students in both private and public schools. His final word? There is no real benefit to private schools over public schools as far as achievement is concerned. The real impact came from school stability. Students moving from school to school tend to fair worse, while their peers who remained in the same schools tend to fair better. Did it matter which school? Not at all. Students in stable social environments within public schools were just as successful as stable students in private schools. That being said, parents do seem to have a higher satisfaction rate with their students in a private school than a public school, regardless of achievement numbers.

2. Who will choose and what are the education consequences?

Arguments for and against school vouchers argue that vouchers alone will allow for better market competition, and therefore force the education system to reform or perish. Levin argues that families choosing an educational institution are more advantaged both educationally (i.e. they generally have a higher education) and economically than non-choosing families. He also argues that the important criterion for choosers tend to be socioeconomic status of other students based on the more preferred schools, and therefore increases segregation. And finally, it is the peer and contextual effects of the higher socioeconomic students that have positive effects on achievement, which leads to a conclusion that inequalities in educational outcomes are likely to be exacerbated by vouchers.

3. What is the evidence on comparative costs of public vs. private schools and on the costs of a voucher system?

Levin has several arguments regarding costs and a voucher system, but as the arguments both for and against funding have already been extensively gone into with the Utah version of the voucher system his conclusions do not apply much to our situation. Rather, I would prefer if the reader referred to previous blog entries on the financials of vouchers.

School Choice and Student Performance: Are Private Schools Really Better? David N Figlio and Joe A. Stone, Institute for Research on Poverty discussion paper no. 1141-97, 1997

Figlio and Stone teach for the Department of Economics at the University of Oregon, and conducted an analysis on the benefits of public schools and private schools by looking at the previous research and fixing issues with the statistical sampling. The research was done with the question of whether or not there is a real difference between public and private schools, and if the difference was there, why. Their findings were really interesting:

1. Religious (primarily Catholic) Private Schools faired the best for ethnic minorities for education, or for high-income students because they choose more expensive and higher quality schools. But for all other educational options, they were generally equal to or behind public schools.

2. Non-religious private schools do tend to do better, scoring perhaps 29% higher at times. The findings were found, not in the difference in quality, but the different social environment and peer-support groups.

3. Finally, the findings are based on moving a single marginal student into an existing peer group within a private school. Vouchers tend to aggravate the social environment by changing the peer group within private and public schools. That means that achievement could deteriorate in both sectors, impacting the initally low-achieving, low-income students the most.

So, ultimately, the problem is not the quality of the instruction, but the social environment that is built within the school itself. Because most attendees of private schools have motivated parents that take an active interest in their student achievement, those students are more interested in achieving better. At least that is the evidence that I see in the research I have read so far.

So where does this place the whole voucher argument? Honestly, I think it will not have an impact on education one way or another. More money, fewer students? It's all about providing more financial incentive to move students around, and giving blame for educational failure on a system that is there to support the parent, not take the parent's place. In my personal opinion, parents should spend less time blaming the schools for bad grades with kids, and spend more time in their lives.

This is by no means scientific, but my parents were more interested in helping us learn, and teaching us how to learn on our own, than about which school we went to. Perhaps it was because we didn't have Cable, and there wasn't much else to watch but Public Television. Or perhaps it was because we didn't have a video game console. Our past time was discussing historical events, analyzing statements, and learning through experimentation. All without a private school or school vouchers.

So what should we really spend our money on? Perhaps resources for parents, synchronized with school topics. Let's get parents involved without providing segregation along class lines as suggested by Levin.

Linux Certifications Continued: SAIR or LPI? Oh, and Linux +

Yes, with my recent comparison with Red Hat and Novell, this comparison was bound to come about. One of the great strengths of Linux, or any open sourced OS, is the diversity that comes from using the same core but different methods for reaching the same goal. That diversity is both it's strength and it's weakness, as anyone that has been flamed by another Linux user for their choice of Distro can attest to. But that's a subject of another discussion all together. ^_^

For the purposes of training, it's important to give as broad a base as possible and not tie yourself to any one specific distribution. This means having a distro-neutral training ground that is well respected within the Linux and Corporate community. Of the advanced training options out there, I have found only two that seem to meet those requirements: SAIR and LPI. This entry will be a comparison of the two from a potential instructor's point of view.

LPI
In previous posts, I have outlined the role that LPI plays. This is because it was the one vendor neutral linux certification that I could find information on that was being offered. It is Internationally accepted by the Linux community, and even had a Linuxworld certification event in Koeln (Cologne) Germany. This indicated that the certifcation is alive and active in it's growth. The testing materials are currently only a year old in their current form, and they are very comprehensive. By all accounts, it's a definite certification to take seriously.

In addition to the certification, becoming a partnered learning center is also fairly easy. All you need are LPI certified materials (such as Guru Labs courseware materials) and a competent, trained staff that know how to teach. Most educational facilities can handle this, though the overall process is not geared to educational facilities. But that's the topic of another rant (i.e., the problem with business scaling to all entities). Regardless, LPI is a very viable option for any training facility that is looking to include vendor neutral Linux certification training. For more information on the LPI certification process and the topics covered in each section, check out their website here: http://www.lpi.org

SAIR
So there I was, thinking that I have finally found the one Linux certification that was very advanced, well designed, and covered a wide range of topics... until I found the SAIR Linux/GNU certification. SAIR was developed with the Linux Professional Group, and focuses on both Linux, and the GNU applications that enhance the Linux kernel. The really nice thing about their certification process is that it requires four training sessions and exams to qualify for one certification (with exception of their Master Linux Certified Engineer which only requires two). Each training session is 4 days long.

The first certification covers the OS itself, with emphasis on networking, administration, and security. Basically, it covers most of both the LPI certifications within it's one certification. That is the Linux Certified Administrator cert.

The second certification goes into applications that are used in conjunction with Linux, but can (and are) applied in other UNIX-like flavors. This includes basic concepts, the Apache Web Server, Samba, and Sendmail. While these applications are lightly covered in the second certification for LPI, whole sessions are dedicated to each application. Obviously, that would be more valuable to someone that spends a lot of time working in that field. Completion of these exams gives the Linux Certified Engineer cert.

Finally, the Master Linux Certified Engineer cert requires the completion of the Linux High Availability class, and the Postgres & MySQL Databases exams. Unfortunately, it doesn't look like these exams were ever given to Prometric for testing, and there is no indication on the SAIR website as to where these exams are offered.

And that's when I started to get concerned. Sure, this all sounds great. And on top of it all they have a very educational institution-friendly process of becoming a learning partner, but they don't seem to have very updated information on their website. So I checked various educational materials provided by bookstores out there... Most of the material is dated from 2001. There have been a lot of kernel changes since then, and even a shift in networking methods.

So, I checked Prometric to see if they still have the exams available for testing. They do, so that at least means something. Students can still test for the SAIR certifications and receive them. But can an instructor teach to the exam, and still remain on topic?

I sent an email off to SAIR to get more details, and have yet to hear back from them. Granted, it was 24 hours ago, but LPI replied to my inquiry within 12 hours. So, my concern is that the certification is no longer being updated, and therefore is about as useful as my A+ certification from 1998. For more information on the SAIR certification, please check out their website here: http://www.linuxcertification.org

Linux+
Yes, I know I didn't make a big mention of this at the beginning, and that's because the certification is meant to indicate a basic working knowledge of Linux, much like the LPI 1 certification. But it's worth a mention, as CompTIA has quite a reputation in the industry for overall vendor neutral certifications. Needless to say, it is something that any Linux training center should encourage for their learners, specifically since it gives them one more certification without an additional class. This is because all the topics covered in the LPI certifications are more than enough to pass the Linux+ certification. For more information on the CompTIA Linux+ cert, check out their website: http://certification.comptia.org/linux/

So, I'm afraid I'll have to leave you with yet another quandry. Which certification should be focused on? If I had more confidence in it, it would be the SAIR certification, as it covers the LPI quite well and goes into more detail with it's second and third tier certifications. But without a sure knowledge of it's current status, the LPI may be the only advanced Linux certification out there that is worth teaching for. If anyone knows of the status of the SAIR certification, please let me know.