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Thanks for the opportunity to elaborate on my calculations. 

SLA: Staffed by 1 student SLA Leader per section and 1 GA for the program, maintained as separate budget category
	* Total costs for program (includes wages and operating costs) for mathematics courses supported for 1 semester. (I only used the mathematics courses since some of the costs for the English courses were picked up by the English Department and I was unable to capture the data on all of these costs.): $26555
	* Total students supported by the mathematics courses for 1 semester: 522
	* Cost per student (total cost / total students): $50.87
	* The SLA Leader has 28 contact hours with the students in the workshops provided (2 hours per week, excluding finals week).
	* Cost per contact hour (cost per student / 28): $1.82
I rounded off to the nearest $0.10 when I reported $1.80.

Peer Tutoring: Staffed by 1 full time staff, 1 GA, and many student workers
	* Total cost of program for one academic year (wages and operating costs, does not include summer): $156367 
	* Total client contact hours (scheduled appointments, walk-ins, on-line support, and non-SLA workshops): 10034
	* Cost per contact hour (total cost / contact hours): $15.58 
I rounded off to the nearest $0.10 when I initially reported $15.60.

While the wages that we pay tutors are lower than those we pay SLA Leaders, the cost per contact hour with tutors is considerably higher. This is because the tutor client ratio for peer tutoring averages out to 2.04 (2 clients per tutor, based on fall '08 data). The SLA Leaders typically work with 28-30 students. None of the calculations take into consideration costs such as utilities or space requirements. However, the total space dedicated for tutoring exceeds the class space dedicated for the SLA workshops, so this should not significantly affect the data reported. 

I did not credit any of my salary against SLA in these calculations since I fall under the same budget line as tutoring. Also, the GA handles the vast majority of the responsibilities for SLA. Shifting a portion of my salary would change the amounts reported, but SLA would still be considerably less costly per contact hour.


Martin Golson
Instructional Specialist
Austin Peay State University

(931) 221-6553





-----Original Message-----
From: Open Forum for Learning Assistance Professionals [mailto:[log in to unmask]] On Behalf Of Sara Weertz
Sent: Wednesday, June 24, 2009 8:34 AM
To: [log in to unmask]
Subject: Re: Supplemental instruction versus individual tutoring

To Martin--I'm extremely impressed with the cost savings/difference between SLA and tutoring but even more surprised that no one has yet to ask about your calculations. Can you elaborate on this for us?

To Susan--When developing a budget for Supplemental Instruction, you need to think about office space, equipment, materials, and campus resources, as well as administrative salaries. You also need to consider your SI Leader hourly wages, SI training and in-service training components, textbooks and photocopying. Estimating your SI cost savings will vary depending on the size of your SI supported classes; the more students in the class and the more classes supported, the better your overall cost savings.

At my University, classroom utilization for SI sessions is free of charge and instructors most often lend us textbooks. Use of printed materials is minimal as most SI Leaders post their study activities online and expect students to download at their own expense. By simply dividing the number of students in a classroom by the SI Leader wages, I can estimate the cost for SI per class. An example:

50 students in a government class
1 SI Leader making $9.00 per hour and working 15 hours per week (approximately 14 weeks) = $1,890.00

The cost of SI for this particular class is about $37.80 per student. Granted, some students use SI to their advantage, attending as many sessions as possible, while other students choose not to attend SI at all. This may be just an average cost per class, but a fair one at that.

sal



Sara Weertz
Director, Supplemental Instruction
Angelo State University
Member, Texas Tech University System
ASU Station #10915
San Angelo, TX  76909
(325) 942-2710  X-387
[log in to unmask]



-----Original Message-----
From: Open Forum for Learning Assistance Professionals [mailto:[log in to unmask]] On Behalf Of Golson, Martin
Sent: Friday, June 19, 2009 10:51 AM
To: [log in to unmask]
Subject: Re: Supplemental instruction versus individual tutoring

Susan,

We use Structured Learning Assistance (SLA) instead of Supplemental Instruction, but I think that the information I can provide may be useful to you.

Cost of services provided (includes wages and administrative costs):
SLA: Approximately $1.85 per contact hour per student
Peer Tutoring: Approximately $15.60 per contact hour per student

Student Success (Percent of students completing the course requirement. For this comparison, I looked at success rates for mathematics students supported by SLA compared to mathematics students who received peer tutoring.)
SLA: 60.1%
Peer Tutoring: 50.8%

I hope this is helpful.


Martin Golson
Instructional Specialist
Austin Peay State University

(931) 221-6553





-----Original Message-----
From: Open Forum for Learning Assistance Professionals [mailto:[log in to unmask]] On Behalf Of Graves, Susan
Sent: Friday, June 19, 2009 10:24 AM
To: [log in to unmask]
Subject: Supplemental instruction versus individual tutoring

Hi, my name is Susan Graves and I am the tutoring center specialist for Thomas Nelson Community College in Hampton, Virginia.  We are looking for information/documentation on comparing results of using supplemental instruction versus individual tutoring sessions.

Any help in this matter would be greatly appreciated.

Susan Graves
Tutorial Learning Center
Room 253, Wythe Hall
Thomas Nelson Community College
757-825-2804
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