Introduction
In an effort to improve our understanding
and teaching of thinking skills, I have developed models for the methods of
thinking used in design and science. These models have two
main goals: 1) to allow an accurate description
of problem-solving methods, of what designers (or scientists) think
and do when they are solving problems, and 2)
to help students improve the quality of their own thinking
by helping them master the methods used by designers and scientists. The
first goal is discussed in this page, the second goal is in Thinking
Skills in Education.
Although it isn't necessary for understanding
this page, you may want to read about the "models for thinking" in
An Introduction to Design
and An Overview of Scientific Method.
This page is in two parts:
The first part — Methods for Problem Solving — was
written in 2000.
The second part — Describing Science using a
Flexible Framework — was written in 1997.
Methods
for Problem Solving
I want Integrated
Design Method (IDM) to be a "framework
for action" that describes the basic actions of designers — what they
think about and what they do — during the process of design. It should
show how the mutually supportive skills of creativity and critical thinking
are integrated in the problem-solving methods used by designers.
The methods used in design (and described
in IDM) are flexible, not rigid. To illustrate by analogy, think about
two types of ice skaters. The sequential actions of a figure skater
are precisely planned and, if there are no mistakes, predictable. By
contrast, even though hockey skaters have a strategic plan, this plan is intentionally
flexible, with each skater improvising in response to what happens during the
game. In IDM the "method" is similar to the goal-directed "structured
improvisation" of a hockey skater. It is most useful to view IDM,
not as a rigid pathway to follow, but as a roadmap that shows possibilities
for creatively rational wandering.
Similarly, a model of Integrated
Scientific Method (ISM) is a framework that
shows the actions of scientists — what they think and do — during the process
of science. But since I agree with the consensus that no single method
is used by all scientists at all times, I am not trying to define the
scientific method. Instead, ISM should be viewed as a way to understand
the structured improvisation, guided by goals, that occurs in science.
In science and design, there are no universally
used, rigidly predictable sequences. But there are basic methods.
These methods can be summarized in models, such as ISM and IDM, that help us
understand the goal-directed actions of improvising problem solvers.
The goals and non-goals of ISM (and IDM)
are explored in more depth in the following section.
To
understand the rest of this page, all you need to know about ISM (Integrated
Scientific
Method) is one simple concept: ISM is a model that contains a number of components
that are logically organized into an integrated framework. Although
here the focus is on science, the same principles also apply to design.
Describing Science
using a Flexible Framework
My two goals for my model of Integrated Scientific Method (ISM) are descriptive
accuracy and educational utility. These goals are connected. I
want ISM to be useful
for accurately describing science, so it can be useful for education. {
The goals for Integrated Design Method, IDM, are analogous. }
For me, educational
utility is the main goal for ISM, with
the main audience being educators, curriculum developers,
teachers, and (eventually) students, rather than scholars who specialize
in the study of science.* But descriptive
accuracy is
also important because
it is necessary for achieving educational utility. Descriptive accuracy
is the focus in Sections 1-5 below.
* The
main components of ISM have been borrowed from contemporary scholars (in history,
sociology, psychology, and philosophy) who study science,
so
ISM
does
not
introduce any major new concepts. But by providing an integrated
structure for synthesizing a wide range of ideas, ISM
offers a fresh perspective
that could serve a useful function in the scholarly study of science.
1. A Problem and a Solution
Can we construct one view of science that
will be considered satisfactory by everyone? No, this is impossible, for
two reasons. First, the empirical evidence of history shows that the methods
used by scientists change with time and culture, and vary from one scientific
discipline to another. Second, even when describing the same events in
the history of science, scholars may disagree about what happened and why.
Therefore, the first goal for ISM — to be
"useful for describing science" — must be interpreted carefully,
to avoid the implication that it promises more than is claimed.
The problem: There is no single
"scientific method" that is used by all scientists at all times. And scholars have different views of science.
But if there are many different "scientific methods," not just one, how can all
of these methods be described by one model?
A solution: Although it would
be foolish to claim that ISM (or any other model) is "The Scientific
Method,"
a more carefully defined goal can be achieved. This is possible because
different types of science, and differing views of science, can be accurately described (to a reasonable approximation)
by differences in how the model's basic framework is elaborated, by filling the framework with customized descriptions for the characteristics
of its components, the integrated
relationships between components, and the
balance (regarding relative importance)
between various components. Because my model of ISM has
been constructed as a framework that provides structure yet is flexible —
thus allowing variations in elaborations of its characteristics, relationships, and
balances
— this model
can be used to describe a wide variety of actual scientific practices, and
a wide
range of views
about how to interpret the nature of science and the thinking of scientists.
2. Views of Science, and Types of Science
As an example of wide interpretive range,
consider the contrast between orthodox views of science and the radical "anything
goes" anarchy envisioned by Paul Feyerabend (1975). Although most
interpreters of science would use ISM's "external relationships with other
scientific theories" to emphasize the importance of constructing a theory
so it is consistent with other theories, this is not the only option.
The same element could be used to introduce the contrary view of Feyerabend,
that scientific progress requires free innovation, with a multiplicity of diverse
theories produced by postulating new theories which are incompatible with currently
accepted theories. Thus, we see the same opportunity, provided by the
"external relationships" element of ISM, used in two very different
ways. Similarly, the "retroduction" element of ISM could be
used either to emphasize the importance of proposing models that are consistent
with known observations, or to explain Feyerabend's view that scientists should
feel free to ignore this constraint by using "counterinduction" to
generate models that are currently unsupported by (or even contrary to) existing
evidence, because the powerful influence of a currently accepted theory can
make it difficult or impossible to observe data which might falsify that theory
and support alternative theories.
By varying the characteristics, relationships,
and balance of elements, the ISM framework can be used to describe different
views of science (as in the paragraph above) or different types
of science, such as the differing methods typically used in the current fields
of astronomy, molecular biology, paleontology, elementary particle physics,
psychology, and nutrition, or in the astronomy of 500 years ago. These
ISM-based descriptions could be analytically compared in order to develop a
deeper understanding of variations across fields (for example, by comparing
current physics and psychology) and time (comparing astronomy in 1497 and 1997)
and views (comparing descriptions by several interpreters). [note: one example of elaboration is my Tools for Analysis: Idealizations and Range Diagrams}
Or a study of variations could focus on different
cultures within the same field at the same time. For example, in the 1960s-and-1970s
there was fierce competition between three communities
with different theories about the mechanism of oxidative phosphorylation.
A comparative analysis of the methods used by these three groups, each taking
a different approach to studying the same area of nature, could be facilitated
by ISM.
3. The Flexibility and Neutrality of ISM
The flexibility of ISM is due partly to
its multidisciplinary origins. Because it was created by synthesizing
ideas from all parts of the interpretive spectrum, ISM contains the concepts
needed to describe divergent viewpoints. These concepts include the cultural-personal
factors emphasized by sociologists, conceptual factors for logically oriented
philosophers, and idea-generating mental activities for psychologists.
Another source of flexibility is that ISM
can be used as an "empty framework" with blanks to be filled in different
ways (with characteristics, relationships, and balances) to
construct alternative elaborations of scientific
methods. Because it can be elaborated in many ways, one model can be used to describe
many methods & views. Perhaps I just lack imagination, but I cannot imagine any
reasonable view of science — one we should take seriously — that could
not be described using the ISM framework.
Thus, ISM is more than my own view of science
because, with alternative elaborations, the same framework can also be used
to describe other views, including a wide range of apparently irreconcilable
views about what constitutes an accurate portrayal of scientific methods.
ISM does not argue for the correctness of any of these competing interpretations.
Instead, it is intended to be a "tool for thinking" that can be used
to clearly express divergent perspectives, so their similarities and differences
can be analyzed and articulated.
For example, the ISM framework does not express
opinions about multicultural perspectives of science, such as feminist critiques
(Rosser, 1989) that science — including its educational practices and institutional
structures, profession-related politics, thought styles, and theories — is
significantly influenced by gender. But the framework does include a category
for "culturally influenced thought styles" where feminist interpretations
can be discussed, and where a wide variety of opinions can be expressed.
In the introduction, I say that the first
goal of ISM is "to allow an accurate description
of problem-solving methods." Notice that instead of claiming
that ISM should be an accurate description, I want it to allow an
accurate description. Do
you see the important difference in these two claims? And does "allowing"
seem like a goal that can be achieved (and hopefully has been achieved) for
the "empty
framework" of ISM?
4. The Bias of ISM
When discussing bias, it is useful to distinguish
between the ISM framework and my elaboration of this framework. My own
views of science (as expressed in this website, especially in the SCIENCE, EKS-RATED,
and ISM pages) are in the moderate mainstream of current interpretations, and
are biased against what I consider to be "extreme" interpretations.
But the bias in my elaboration does not define the bias of ISM. Or, by
framing this statement in the format of a standard disclaimer, "The views
expressed in my elaboration are not necessarily those of the ISM framework."
To illustrate the distinction between elaboration and framework, imagine another
person writing an alternative elaboration of ISM — with different characteristics,
relationships, and balances, expressed using different illustrations and interpretations
— that is compatible with the ISM framework, even though it expresses many
views contrary to my own.
When examining bias, it is useful to think
of the ISM framework as a language for communicating ideas. A flexible
language can express a wide range of ideas. A neutral
language allows an equally easy, accurate, and influential expression of all
ideas within its range. To the extent that some ideas can be expressed
more easily and powerfully, a language is biased toward these ideas. By
using the language of ISM it is possible to describe all views, but it
is easier to describe some views, so these are favored by the framework.
ISM is highly flexible, but not totally neutral.
In addition, the mere existence of an element
in ISM is an implicit argument that this element is considered an important
part of science. For example, the elements for "external consistency"
and "retroduction" strongly imply the orthodox view that these are
essential components of science. Although these implications can be denied,
as in Section 2 , it would be difficult for anyone to
see Feyerabend's views in the ISM-diagram. But it is easy to see the orthodox
views, so ISM is biased toward these views. This implicit bias is made
explicit in my SCIENCE-page, which describes the orthodox views but not those
of Feyerabend. { Yes, this does show that in some ways it
can be difficult to clearly distinguish between the ISM framework and my
elaboration. Earlier I claimed that "it can be useful to distinguish...",
not that it is easy. }
The ISM framework — due to its non-neutrality
as a language, and its inclusion of some elements but not others — is biased.
Usually, however, this bias is weak enough to overcome, thus allowing ISM to
be used for clearly expressing a wide range of scientific practices and views
about science. The educational implications of bias and flexibility, and
why the inclusion of cultural-personal elements in ISM may be a cause for concern , are discussed on the "EKS-Rated Scientific
Method" page.
5. Is ISM a model for a method?
Is there a method in science? The
answer depends on a definition of "method." If this means a
rigid sequence of steps or an implication that all science is the same, there
is no method. But with a broader definition, the answer is yes.
However, this "yes" is really the answer to a different question,
after conversion from singular to plural: "Are there methods in science?"
When the goal shifts from singular to plural, from finding the method to
finding methods that are "variations on a basic theme," the
search becomes more productive because there is a closer match between this
re-defined goal and the reality of science.
With this pluralized definition, instead
of calling ISM an "integrated scientific method" it would be more
accurate to call it a "framework for describing some typical relationships
between activities often used in science." But I will continue to
use "ISM" as a convenient abbreviation, since "ffdstrbaouis"
is too cumbersome for comfort.
Scientific methods are flexible, so a model
of scientific methods should be flexible. Therefore, ISM does not try
to define a single method for all science. But ISM can be used to describe
commonly occurring patterns, such as a cycle where observations are used for
evaluation that is used to design experiments which produce observations, and
the cycle begins again; during each cycle, empirical knowledge of a domain increases,
and there is often a "successive approximations" approach to theory
development by revision. Scientists can begin at any point in a cycle.
ISM can also be used to describe and analyze
the complexities of timing that involve overlapping and interconnected activities,
iterative cycles within cycles, multiple branchings, and so on. But even
though some patterns do exist in the sequencing of activities, ISM should be
viewed, not as a rigorous flowchart of scientific activity, but as a roadmap
that shows some possibilities for rationally creative wandering.
OFF-PAGE LINKS:
"
fierce competition" is in the SCIENCE-DETAILS page
"difficult to distinguish" is
in the SCIENCE-DETAILS page
"a cause for concern" is
in the EKS-RATED (Debates
about Science) page