Computer Assisted Instruction (CAI)
History, Evolution, & Future Promise
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Instructional / Educational Theory Timeline

Source: Saettler, P. (1990). The Evolution of American Educational Technology. Englewood, CO: Libraries Unlimited, Inc.


Franklin Bobbitt & W.W. Charters -- 1912
Frankin Bobbitt broke apart or itemised curriculum into hundreds of specific measurable objectives in order that schools be held more accountable. This was the beginning of competency based and performance based education. He was most interested in job specifications of industry. W.W. Charters dissected major objectives into minor objectives to facilitate curriculum delivery. Saettler comments that Charter's approach was implementation of previously selected objectives, while Bobbitt intended to "discover curriculum objectives" by analysing what people do (p. 288).

Efficiency Period -- 1913
Saettler, on page 292 states that the "scientific management gave educators a sense of security and protection from public criticism" which in a way is much like our educational system today. This was primarily regarding training following the industrial approach.

Sidney L. Pressey -- 1925
This educator developed a number of devices that were the forerunners of programmed instruction including the multiple choice machine, the punchboard device, and others. His multiple choice machine taught tested and waited for the correct answer while recording all attempts and also preceded immediate feedback -- but lacked corrective instructions.

Ralph Tyler -- 1929
His rationale included these four steps: One identify objectives. Two, selecting educational experiences to meet the objective. Three, organising the experiences. Four, evaluating the results. His work was the precursor to educational systems movements relating to behavioural objectives.

Neobehaviorism -- 1930
Neobehaviorism has many versions! Edwin Guthrie believed in classical conditioning rather than reinforcement. Edward Tolman emphasised cognitive aspects of learning.

Hullian Era -- 1940's
This time period in the history of CAI and behavioralism, included people such as Clark L. Hull who effected theorists by stating that "learning involves stimulus response conditioning by repeated need satisfaction" (Saettler, p. 287). His theory included: the role of scientific theory, recognition of complex phenomena, testing hypotheses and improving experimental design. His theory became less popular in the '50's because of it's complexity and that it did not predict human behaviour accurately enough.

Norman A. Crowder -- 1950's
Within this period were the development of Phase Checks which were several training devices to teach and test a skill. Norman Crowder involved in US Air Force troubleshooting and training developed a process where branching text presented material, tested the learner, provided feedback and branched to corrective instruction or new information based on supplied responses. Branching proved that Crowder's process was more advanced than Pressey's M-Ch. machine.

Gordon Pask -- 1953
Invention of an adaptive machine for Computer Assisted Instruction.

B.F. Skinner -- 1954
B.F. Skinner, known as the "Father of the Programmed Instruction Movement" (Saettler, p. 296), demonstrated at the University of Pittsburgh his teaching machine to teach spelling and arithmetic. This began a revival in the interest of individualised instruction and changing development, testing and evaluation practices. Hence the birth of the "teaching machine revolution" (Saettler, p.294). His interests focused on the process rather then the machine, but other people tended to focused on the machine.

Benjamin Bloom -- 1956
This educator and his colleagues developed three taxonomies of learning in the cognitive domain, affective domain, and psychomotor domain. Most educators are familiar with the famous Bloom's Taxonomy for the cognitive domain.

First Users of Programmed Instruction -- 1956-58
1956 -- Programmed Instruction (PI) by B.F. Skinner and James G. Holland at Harvard University.
1957 -- PI used in Elementary school by Douglas Porter in a year long experiment in Second and Third Grade spelling.
1957 -- PI used for a second time at a college level by Evans et al. Printed program in a book format simulated teaching machines at the University of Pittsburgh.
1958 -- PI used for the first time in a Secondary School by Eigen and Komoski who attempted to teach math.
Early 1960's -- B.F. Skinner now the leading behaviourist due to operant conditioning theory outlines concepts of reinforcement combined with applications in teaching machines and programmed instruction with emphasis on reinforcement not just presentation. Behavioural objectives with measurable outcomes were integral concepts.
1960 -- Teaching Machines & Programmed Instruction is popular in the 60's because of behavioralism. Shaping in learners took place by controlling amounts of information allowing responses and providing feedback.

Kenneth Oberholtzer, O.M. Moore, English 2600 at Manhasset & Denver PLATO -- 1960
1960 -- Kenneth Oberholtzer a superintendent of Denver public schools provided opportunity to teacher to become trained as programmers.
1960 -- O.M. Moore developed the "autotelic responsive environment" (Saettler, p.306) system for teaching nursery school children to read.
1960 -- A Grade 7 /8 English 2600 Program in Long Island New York met with mixed results. Difficulty with their control group inhibited accurate results.
1960-61 -- English 2600 Program in Denver shows an increase in results for accelerated classes, no change for normal students and poor results for low achievers. This program was discarded in favour of individualised instruction so that student results are more homogeneous.
1960 -- PLATO (Programmed Logic for Automatic Teaching Operations), from the University of Illinois. This drill and practice tutorial model CAI, TUTOR programming language incorporates simple branching. Involved were touch screens, audio, slide shows, music synthesisers, slide projectors and lab apparatus. PLATO did not purport improved results. PLATO is still around today. As an aside, the author had a long discussion with a sales person for PLATO at a conference late last year, and they predominantly use CD's now. Same branching concept though.
1960-62 -- Del Barcus trained Denver teachers a programmed instruction process where students were to teach word recognition in Spanish. Results were best were students received a combination of regular teaching and PI.

Robert Mager, Finn-Perry & Machine-Program Dichotomy Center for Programmed Instruction -- 1962
1962 -- Robert Mager wrote Preparing Instructional Objectives postulating that objectives should be presented in performance terms. What resulted was "criterion-referenced behavioural objectives" (Saettler, p.290).
1962 -- Finn-Perry Survey points our the Machine Program Dichotomy. Companies were developing software and hardware in great numbers but were not basing their work on research.
1962-63 -- Center for Programmed Instruction researched by way of a survey to determine patterns of PI. PI was most common in JH schools and mainly in math (60%), LA (21%) foreign language (4%), Science (3%) and S.S. (3%) (Saettler, p.279).

Keller Plan -- 1963
F.S. Keller and the Keller Plan which had the following characteristics: Student directed pace, mastery learning, lectures and demonstrations, written teacher/student communication and use of proctors to increases individualised learning and tutoring. Berliner criticised the Keller Plan because students needed to study 20 to 40% more then regular students and the drop out rate was higher.

Patrick Suppes & Richard Atkinson -- 1963-65
Development of a CAI drill and practice behavioralist program for math at Stanford University. In 1967 the Computer Curriculum Corporation (CCC) with William Estes developed CAI drill and practice program for both Math and reading were developed. Even up to the late 1970's the reading program did not show much success. In the '80's they added digitised speech and by 1984 was based upon the UNIX system.

Individually Prescribed Instruction (IPI) -- 1964
Bloom's Taxonomy for affective domain was introduced which included the receiving or attending, responding, valuing, organisation, and value analysis.
In the same year, Individually Prescribed Instruction (IPI) which was developed by the Leaning Research and Development Center of the university of Pittsburgh. This program was developed for use of K to 6 reading, math and science. It had pretests, prescribed learning based on behavioural objectives and post tests. Eventually became obsolete with increased costs.

Individually Guided Education (IGE) -- 1965
Hergert Klausmeier's project "IGE" assessed student needs, instructional objectives and programs were planned and re-assessed. Up to 3000 students in elementary and middle schools participated in this program. Innovative practices such as: team teaching, non-graded classes and cross age tutoring were involved. By the late 1970's this program ended because of funding.

Program for Learning in Accordance with Needs (PLAN) -- 1966
Led by John C. Flanagan, students were intended to work on modules with about five objectives using two weeks of instructional time. Learning was assessed with remedial activities and retesting done when required as well as record keeping. Became obsolete due to cost of updating.

TICCIT -- 1969
Time-Shared, Interactive, Computer-Controlled, Information Television, (TICCIT), by Mitre Corporation of Brigham Young University, was a CAI program based upon drill and practice. It was a low cost alternative to traditional instruction in community colleges. This program excelled in student control features and on-line help, and advertised that it increased scores in math and LA composition. It was not a resounding success due to lack of enthusiastic staff use.

Leon Lessinger, Decline of Programmed Instruction --1960's - 70's
Leon Lessinger encouraged accountability of schools by analysing success based on behavioural objectives.
Late 1960's -- The decline of PI. Predominantly the result of unrealistic expectations led to disappointing results. Students in their infinite resourcefulness found ways to circumvent the machine or got poor results after receiving programmed instruction. This form of instruction became less popular as research increased in "educational and teaching technology" (Saettler, p.303). Hopeful advertisement marketing these programs did not result in successful learning as they said.

Performance Contracting -- 1969-72
Educational institutions and government begin to turn to private business for educational solutions. Saettler recounts that funding was made available for "the development of learning systems to improve pupil performance in reading and arithmetic as measured by standardised achievement tests" (p. 293). Results did not improve and funding was ceased in 1972.

Computer-Assisted Instruction (CAI) -- 1971
Control Data Corporation (CDC) and Mitre Corporation were awarded contracts to develop CAI where the best program would emerge due to marketplace competition. PLATO started in 1961 and TICCIT in 1969 were the results. Drill and proactive and behaviourist based -- author controlled -- were the most predominant CAI based programs. Problems encountered with this form were: technical problems, availability of CAI in the school setting, lack of quality software, teacher inexperience and cost of programs.

Robert Gagne & Leslie Briggs --1974
Behavioural objectives were proposed with five components: "action, object, situation, tools and constraints and capability to be learned" (Saettler, p. 290-1). Content and method could now be distinguished from the behavioural objective pointing toward an ability to predict student capability and thus curriculum.

Decline of Individualised Instruction -- Mid 1970's
Decline was due inconclusive benefits from individualised instruction. Educational and teaching technology was coming to the fore.

Mastery Learning -- Late 1970's
Bloom, Block and Morrison's work on behavioural objectives suggested that instructional objectives for specific units of learning could be established and evaluated to indicate mastery of those objectives. The only thing it worked well with was incremental learning. Synthesising, communication, divergent thinking and objectives from the affective domain were not so promising....

Introduction of the Microcomputer -- 1977
CAI hardware changed with the introduction of the microcomputer. Modern cognitive psychology was replacing behavioralism.

   

 
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© Created by: Walter Valero, GSLIS 747 - Queens College
Contact: wvalero@york.cuny.edu
Last updated: 15 December 2004
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