This contribution explores computer-assisted learning (CAL) from a number of different angles. First, it discusses the many synonyms that exist for the use of information and communication technologies (ICTs) in education. Within these synonyms are concepts which often hide subtle but important differences from both a technological as well as a pedagogical/educational point of view. It proceeds with a short history of CAL. While CAL as an entity was first used in the early 1960s of the previous century (1960s), the concept underlying its use has roots dating back to the beginning of that century. The third and final part will focus on the effectiveness of CAL in education which will lead to an adaptation of the current definition.
What’s in a Name?
[a]ny use of computers to aid or support the education or training of people. CAL can test attainment at any point, provide faster or slower routes through the material for people of different aptitudes, and can maintain a progress record for the instructor. (Online entry)
This definition has changed through the course of time as the computer itself has changed from a bulky, building-large behemoth of tubes and wires to something that fits into your pocket and can be even smaller. In the 1960s, computer use was first introduced in education. In this first phase of CAL, the computer was a mainframe which was connected to learners in specifically designed “classrooms” via terminals that were relatively far away from the mainframe computer. In this phase, the computer was primarily used as a knowledge-bank of questions which students could use for self-assessment of their knowledge. Using computers was extremely expensive and cumbersome and was only available for a “happy few.”
In the 1980s and 1990s, CAL was often used to refer to the development of either a single computer program or a series of programs which replaced more traditional methods of teaching. This was the direct result of the introduction in August 1981 of the IBM PC (personal computer) followed by the Apple II shortly thereafter. A mainframe computer was no longer needed to use computers for educational purposes and each student could work at her/his own PC in school or, for those pioneers, at home. This period also saw the introduction of what is now called computational thinking/coding with the launch of LOGO by Seymour Papert and his group at the Massachusetts Institute of Technology Artificial Intelligence Laboratory where, with the aid of PCs/microcomputers children in classrooms received an initiation to computer programming skills, turning it from an abstract activity only carried out by specialists into a concrete, real activity that could be carried out by students to program the movement of a robotic turtle.
This second wave was followed by a third wave ushered in by the introduction and availability of the Internet/World Wide Web where computers and people worldwide became connected to each other. This third wave also brought us tools such as email, webpages, blogs, etc. This broadened the concept of CAL to include, for example, web-based tools such as online learning environments, opening the door to online databases, making learning analytics a possibility.
The present wave is shaped by the availability of mobile devices (e.g., smartphones, tablets), semi-intelligent peripherals (e.g., augmented and virtual reality glasses, motion sensing input devices, such as the Kinect or the WII), and seamlessly integrated devices (e.g., the Internet-of-things) where CAL literally can take place anytime and anywhere where there is Internet (and that is virtually anywhere in the world).
Use of computers: while there were analogue computers up to the 1960s, this now implies the use of many different digital media interconnected via the World Wide Web. To update this, it might be better to speak of the “use of multimedia and the Internet.”
Support the education or training of people: the “computer” will take up one or more roles and functions of the teacher and/or trainer to offer the learner necessary support and guidance during the instructional or learning event.
Test attainment at any point: the “computer” will keep track of the learning process to determine whether the learner has achieved the goals of the CAL. It often does this by comparing the different products during the learning period with the beginning and end situations. This is related to what is now known as “learning analytics” which can be described as “the measurement, collection, analysis and reporting of data about learners and their contexts, for purposes of understanding and optimising learning and the environments in which it occurs.” (Ferguson 2012, p. 305)
Provide faster or slower routes through the material for people of different aptitudes: the “computer” provides possibilities to adapt the content of, pace of, and/or approach to learning based on learner progress which is presently determined by learning analytics. The terms now being used for this are adaptive learning and personalized learning.
Maintain a progress record for the instructor: the “computer” is not only facilitated to let the technology adapt to the learner but also to inform the teacher/instructor to be able to adapt his or her approach based on the learning analytics.
Daintith and Wright (2008) also state that CAL is one of several terms used to describe this application of computers. Indeed, there have been many different names given to the use of ICT in education. Some names focus on the kind of technology being used, such as computer-mediated learning, computer-based learning, intelligent tutoring systems, web-based learning, and mobile learning. In these aforementioned cases, there can be an overlap between which technology is used and how the technology is used. And although the terms are often used as almost synonyms, at the same time it is perfectly possible to use mobile technology that is not web-based, to use computer technology that is not mobile or to use web-based tools that are not mobile or other web-based tools that cannot be used on personal computers.
The many names for the use of information and communications technology (ICT) in education can also hide differences between pedagogical and educational views, for example, the not so subtle difference between CAL and computer-assisted instruction (CAI). The difference between learning and instruction is the difference between a focus on the task of the pupil (learning) and a focus on the task of the teacher/teaching (giving instruction). This distinction goes far beyond the use of technology and has deep historical roots going back to the Romantic era (eighteenth century), but this does not mean they can be disregarded. Which name people use for the use of technology in education often discloses a certain vision on or philosophy of education. When using CAL, one comes close to a paradigm of social-constructivism where a pupil must build her or his own knowledge, while CAI could be regarded as a more cognitivist or instructivist approach which puts the emphasis on the need for an expert who can give the necessary support and guidance (Kirschner et al. 2006).
Finally, some of the names are a combination of the two. Take, for example, computer supported collaborative learning (CSCL). On the one hand, there is an emphasis on the technology, namely, the computer or, better stated, computers connected to each other through a network. On the other hand, there is emphasis on the pedagogy, namely, collaborative learning. This is an approach to learning whereby a shift is made from learning individually and competitively to learning with others in the context of a team carrying out a task or solving a problem such that the members of the team share authority and accept responsibility for the group’s actions.
The Pedagogical and Educational Roots, History, and Near Future of CAL
After Pressey, more and different teaching machines were trialed and tested until in 1954 B.F. Skinner wrote his The Science of Learning and the Art of Teaching. In this seminal work, Skinner (1954) laid down the basics of his vision on programmed instruction which was then later translated through different incarnations of teaching machines. The most important difference with Pressey’s teaching machine – though similar to Thorndike’s law of effect – was the strong emphasis that he placed on reinforcement during the learning process (Skinner 1961).
First, continuous active student response is required, providing explicit practice and testing of each step of what is to be learned.
Second, a basis is provided for informing the student with minimal delay whether each response he makes is correct, leading him directly or indirectly to correction of his errors.
Third, the student proceeds on an individual basis at his own rate – faster students romping through an instructional sequence very rapidly, slower students being tutored as slowly as necessary, with indefinite patience to meet their special needs.
The devices thus represent a way of providing a preprogrammed study-practice combination which simulates, in partially or fully automated fashion, the functions of a private tutor in recitation and practice, with immediate correction of errors and feedback to the student.
This first phase of learning machines can be regarded as the behavioristic phase. Though different forms of “computers” were around long before the 1960s – the Antikythera mechanism, for example, has been described as a computer from ancient Greek times (Freeth et al. 2006) – and there have been different learning and teaching machines, the concept of “computer-assisted learning” stems, as stated, from the 1960s of the previous century. While scientific references are older (e.g., Coulson et al. 1962; Glaser 1965; Suppes 1965), the first real mentions of CAL in scientific journals can be found in 1966, after its mention at conferences in 1965 (e.g., The Conference on Computers in Physics Teaching, University of California at Irvine, November 1965) (Based on searches in ERIC and Scholar which resulted in Fowler (1966), Hirsch (1966), and Trump (1966) as oldest sources).
Probably due to a combination of resources, perceived affinity of the domain for CAL and political forces that often drive changes in education, the natural sciences (including mathematics and medicine) were the early adopters of CAL. A good overview of this can be found in a special issue of Computers & Education in 1992 (volume 19, numbers 1–2). For example, the integration of the computer into medical education was recommended in 1979 by Daniel Tosteson, then Dean of Harvard Medical School, when he proposed that the use of what he called “information-processing devices” be developed as a core component of the medical school curriculum. Michael Hewson, in his seminal work on the use of microcomputers in science education (1984) summed it up as follows: in science education, microcomputers allow students to play a more active role in learning, get individual attention for their specific difficulties, and allow students to control the pace at which they work. Also, physics educators showed a particular interest in CAL (e.g., in Fowler (1966)). Another specific form of CAL, computer-assisted language learning (CALL) stems from the same period (Marty 1981), though the use of computers for language learning was at first limited to universities. CALL makes use of computer technology to aid in the presentation, reinforcement, and assessment of language material – usually a second or a foreign language – to be learned. While originally based upon stand-alone applications on microcomputers, CALL now uses a broad range of technologies and approaches ranging from traditional drill-and-practice programs to virtual learning environment and web-based distance learning with its most recent being mobile-assisted language learning (MALL; Shield and Kukulska-Holme 2008).
After these initial often behavioristic inspired approaches of CAL – see also the link with Skinner and Thorndike – in the 1970s and 1980s a different approach to CAL and CALL could be seen with more Intelligent Tutoring Systems introducing a second rather cognitivist phase. The advocates of this approach argued that all CA(L)L courseware and activities “should build on intrinsic motivation and should foster interactivity – both learner-computer and learner-learner” (Han 2009, p. 41). In this cognitivist phase, research and development now were directed at finding, studying, and implementing methods and strategies that would bring about specific and desired cognitive processes, for example, assisting learners in selecting information, organizing it into internally consistent concepts, and integrating new with existing knowledge in cognitive schemata so that it would be personally relevant and meaningful. This second phase coincided with the second wave discussed earlier that came from outside education as, from the 1980s onwards; the microcomputers made computer technology more accessible to a broader audience and to educational institutes besides the universities. Warschauer and Healey (1998) describe a third phase as social-constructivist with a strong emphasis on agency (Warschauer 2000). But it can be argued that for this objective of agency, a democratization of microcomputers was not enough; the third wave described as integrating the worldwide web was key for this.
A fourth phase benefited also from the technological evolutions which came with the development of network-based technology, through which people can share whatever and communicate with each other whenever and wherever (Tafazoli and Golshan 2014), which made an evolution possible from a social-constructivist approach to a connectivist approach. This phase coincided with computer technology becoming more mobile, which led to mobile devices such as laptops, smartphones, iPads, and Augmented Reality-devices, with the possibilities of a steady growth of computing power, making it possible to handle large amounts of data, now referred to as Big Data, or as we call it today in education: learning analytics. These kinds of mobile devices, combined with technology as the original definition stated that is able to test attainment at any point, can give the user both teacher and learner agency.
A further evolution of CAL can come in the form of the use of artificial intelligence (AI), with smart assistants helping both teachers and students in their teaching and learning process. A first example was delivered by “miss Jill Watson,” an AI-assistant powered by IBM’s supercomputer Watson that answered email-questions of students of Professor Eric Wilson (Korn 2016).
The Effectiveness of Computer-Assisted Learning
There is a diversity of teaching strategies.
There is teacher pretraining in the use of computers as a teaching and learning tool.
There are multiple opportunities for learning (e.g., deliberative practice, increasing time on task).
The student, not the teacher, is in “control” of learning.
Peer learning is optimized.
Feedback is optimized.
In other words, it is the pedagogy and not the technology that can affect outcome. This is an echo of Richard Clark (1983) who found that research on media showed that when differences between media on learning are found, it is the method that causes the difference and not the medium. He summed this up in his famous quote, “[M]edia are mere vehicles that deliver instruction but do not influence student achievement any more than the truck that delivers our groceries cause changes in our nutrition” (p. 445).
A more recent literature-review for The National Bureau of Economic Research by Escueta, Quan, Nickow, and Oreopoulos discusses the evidence to the present time (2017) on the use of technology in the classroom. For their review, the authors compiled publicly available quantitative research that used either randomized controlled trials or regression discontinuity designs (where students qualify for inclusion in a program based on a cut-off score at pretest). All the studies that were used in the working paper examined the effects of an educational technology intervention on any education-related outcome, which makes this work broader than studies only looking at a learning effect. The working paper included not only the areas of technology access, computer-assisted learning, and online courses but also the less-often-studied technology-based behavioral interventions.
Access to technology may or may not improve academic achievement at the K-12 (4 to 6-year-olds through 12th grade (12) for 17 to 19-year-olds) level, but does have a positive impact on the academic achievement of college students.
Online learning courses had the least amount of research that could be examined and showed the least promise of the four areas. However, when online courses were accompanied by in-person teaching, the effect sizes increased to scores comparable to fully in-person courses.
Computer-assisted learning, when equipped with personalization features, was an effective strategy, especially in mathematics (Escueta et al. 2017).
Any use of computers to aid or support the education or training of people. CAL can test attainment at any point, personalise the learning routes both in speed, complexity and other possible forms of personalisation of learning, and can maintain a progress record for the instructor.
Computer-assisted learning (CAL) is older than one may think, dating back to the early 1960s of the previous century, with roots dating back to the beginning of the previous century. The meaning and focus of CAL has changed throughout time, shifting from behavioristic, through cognitivist and social-constructivist to connectivist visions, often fuelled by technological evolutions. While many people have put hope in technological breakthroughs making it possible to have better learning results, the actual research shows mixed results.
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