Table
of Contents
33:
Learner-Control and Instructional Technologies
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33.12 Recommendations For Future Research
Several researchers recently have apparently stopped asking this research
question: "Which is better: learner- or program-controlled CBI' It
seems that enough research has been produced to date to justify conclusions
of "it depends" or "take your pick." Rather, these
researchers fundamentally alter the question to read, "How can I
make learner-controlled CBI effective?" Within their experimental
studies, these investigators do not include a program--control treatment
at all, deciding instead to focus on the question of how to improve the
design of instruction, given learner control. For example, a study by
Santiago and Okey (1992), investigating various forms of advisement conditions
all under learner control, Provides a good example of how research might
be conducted with the aim of improving learner-controlled instruction.
Another good example of this framework is shown in a study by Pridemore
and Klein (1991), who looked at variations in feedback elaborations, each
operating within the same learner-controlled feedback structure. Another
study by Hicken et al. (1992) investigated whether within a completely
learner-controlled lesson, options to skip material in a "full"
lesson might be more beneficial than learner options to see more material
in a "lean" lesson. The likelihood is that the number of this
type of study will continue to grow.
Additionally, many other specific issues that might be pursued include
the following:
- What specific instructional events are most or least amenable to
providing or withdrawing learner control? That is, of the many instructional
strategies, methods, activities, and events from which designers may
draw upon to build lesson designs, which ones are most promising? Theoretical
work by Laurillard (1987), Milheim and Martin (1991), and Steinberg
(1989) go a long way toward providing prescriptive guidelines for designers;
however, more specific recommendations need to be explored. I also strongly
concur with the suggestion of Milheim and Martin (1991) to conduct more
empirical and theoretical work on the nature and role of learner motivations
in learner-controlled CBI settings.
- What exactly is the nature of a learner's mental processes as he
or she proceeds through learner-controlled instruction? If we can better
understand both the rational-cognitive thought processes and the emotional-motivational
states of the learner, we might be able to devise means to encourage
optimal processes and perhaps attempt to alter or at least compensate
for dysfunctional processes. This type of investigation has been suggested
before (Clark, 1984; Robson, Steward & Whitfield, 1988) but has
not yet been adequately pursued, perhaps because of the inherently qualitative
nature of the data and the lack of comfort with such methodologies by
many learner-control investigators. Reeves (1993) goes so far as to
suggest that, "Perhaps a moratorium should be called on the types
of quantitative studies described in this [Reeves's] paper, replacing
them with extensive, in-depth efforts to observe human behavior in our
field and relate the observations to meaningful learning theory that
may later be susceptible to quantitative inquiry" (p. 44). (See
also 40. 1.)
- Related to the previous suggestion, it is time investigators more
closely examined the social nature of learner-controlled activities.
Anyone who has observed classroom situations where students navigate
through instruction has informally noticed that there can be a great
deal of discussion among students, both those sitting at separate computers
and those working at the same computer. Rather than attempt to eliminate
such interactions in order to investigate the "pure" effects
of learner or program control, researchers may wish to adopt methodologies
closer to field studies or naturalistic inquiry to study how learners
can feed off each other's comments and actions during instruction. Although
some experimental studies have been conducted to try to sort out the
relative effects of learner control or program control for cooperative
groups or for individual students (Hooper, Temiyakarn & Williams,
1993; Temiyakarn & McDonald, 1993), more work remains to be done
before general conclusions, if any, can be drawn. (See also 35.9.4.)
- A perhaps erroneous assumption undergirding most learner-control
research is the implicit value placed on an individualistic and internally
referenced system of control over instruction. That is, we tend to say
that it is a good thing for learners to develop a capacity for intelligent
control over their instructional experiences. This assumption might,
however, be culture dependent. There is the additional question of whether
the psychological bases discussed earlier (cognitive-rational and emotional-motivational)
will operate similarly for students of differing cultural backgrounds.
Wong (1988), for example, found that for students in a study conducted
in Singapore, those who were under learner-controlled conditions selected
more instructional options than students received under program control,
a finding contrary to most learner-control research. Cross-cultural
studies of learner control are sparse, but are needed to shed light
on the question of whether learner control can be viewed with the same
assumptions for children of different cultural backgrounds and values.
- Learner control should be much more closely investigated under other
common or developing types of computer-based environments, such as simulations,
hypertext/hypermedia (including browsing through internet systems such
as the World Wide Web), on-fine databases (such as electronic encyclopedias),
online help and other support tools, and distance education. All of
these contexts (possibly excepting distance education), by definition,
intrinsically allow learner control to a greater or lesser degree. And
it is likely that these types of computer-based experiences will soon
be more frequent experiences for students than standard tutorials or
"drills & practice." However, research to sort out the
peculiar learner-control factors, each of which needs attention or support
in these instructional systems, is still in its infancy (Trumbull, Gay
& Mazur, 1992; McGrath, 1992; Saba & Shearer, 1993). Nevertheless,
Chung and Reigeluth (1992) have given a jolt to this area of investigation
by providing some useful instructional prescriptions for the use of
learner control in hypermedia learning systems which they induced from
the standard learner-control literature.
- There needs to be a greater link made between learner--controlled
CBI research and a growing body of literature on the topic of self-regulated
learning. Briefly, this area of investigation, contributed to notably
by McCombs and associates (McCombs, 1982, 1984; McCombs & Marzano,
1990) and by Zimmerman and associates (Zimmerman, 1990; Zimmerman &
Martinez-Pons, 1986, 1988, 1990) conceptualizes students as "metacognitively,
motivationally, and behaviorally active participants in their own learning
processes" (Zimmerman & Martinez-Pons, 1988, p. 284). Although
the research so far has primarily focused on understanding on a rather
macro level the mental strategies occurring during successful self-regulated
learning, this literature has clear implications for the inclusion of
motivational variables in the design of learner-controlled instructional
systems. In fact, some investigators have recently begun to explicitly
address motivational variables operating in self--regulated learners
(e.g., Schunk, 1990b; Zimmerman & Martinez--Pons, 1990). Additionally,
there is beginning to emerge an interest in the application of self-regulated
learning models to other formats of CBI, such as computer programming
(Armstrong, 1989; Fischer & Mandl, 1988). Finally, a recent integrative
paper by Kinzie (1990) provides a much-needed conceptual framework for
discussion of the related areas of self-regulation, continuing motivation,
and learner control.
- The constructivist paradigm for learning would seem to have great
implications for both the explanation of findings from the existing
literature on learner control as well as to offer suggestions for new
types of research questions based on the perspective it brings. Lebow
(1993), in fact, suggests that constructivism provides a much-needed
framework for interpreting the often confusing results from learner-control
research. These reinterpretations of the learner-control literature
from this point of view remain to be done, however. Additionally, he
points out, as do others (e.g., Jonassen, Wilson, Wang & Grabinger,
1993; see also 7.4.5), that constructivist instructional perspectives
are associated with a high degree of learner control and imply many
new types of research questions. Indeed, Jonassen et at. (1993) discuss
how constructivist approaches and learner control are inextricably linked,
"The more learner-controlled the instructional systems are, the
more generative they are; that is, they require learners to generate
or construct their own knowledge" (p. 87). Certainly future investigators
who adopt this. type of philosophy would ask questions that are far
removed from "Which is better learner or program control?"
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