© Division of Chemical Education • www.JCE.DivCHED.org • Vol. 85 No. 10 October 2008 • Journal of Chemical Education 1435
Research: Science and Education
Novices’
Characteristic
Beliefs
Isolated pieces
of information
Handed down
by authority; no
connection to the
real world
Pattern matching
to memorized,
arcane recipes
Fundamental
Aspects of
Chemistry
Chemistry
content and
structure
Source of
chemistry
knowledge
Problem
solving in
chemistry
Experts
Characteristic
Beliefs
Coherent
framework
of concepts
Describes nature;
established
by experiment
Systematic, concept-
based strategies;
widely applicable
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Modifying and Validating the Colorado Learning Attitudes
about Science Survey for Use in Chemistry
Jack Barbera*
†
Department of Chemistry and Biochemistry, University of Colorado, Boulder, CO 80309; *jack.barbera@nau.edu
Wendy K. Adams, Carl E. Wieman, and Katherine K. Perkins
Department of Physics, University of Colorado, Boulder, CO 80309
With the extensive development of curriculum innovations
and alternative teaching methods in chemistry education there
is a need to evaluate the impacts of these various changes on stu-
dents’ beliefs about chemistry and learning chemistry. Distinct
diferences exist between novice and expert learners concerning
their beliefs about science and learning science; Textbox 1 sum-
marizes these diferences in three main areas.
Many diferent terms have been used to refer to the types of
views represented in Textbox 1: beliefs, attitudes, epistemologies,
and so forth. Unfortunately, none of these terms is consistently
interpreted. Following Bauer (2), here we use the term “beliefs”
as these generally difer from “attitudes” in that beliefs represent
a person’s “personal knowledge or understandings that are ante-
cedents of attitudes and subjective norms”. Fishbein and Ajzen
(3, pp 11–16) outline the formation of attitudes, intentions, and
behaviors based on one’s beliefs.
Good education clearly should result in changes to student
beliefs toward those of experts. Studies by House have shown
that students’ expectations can be a better predictor of college
science performance than previous mathematics or science
experience (4, 5). Tese studies showed that a student’s achieve-
ment expectations and self-concept correlated more closely with
achievement in chemistry than measures of prior achievements
or instruction in mathematics or science. Student beliefs can
afect how they learn new information; in turn, students’ expe-
riences can shape their beliefs (6–9). Hume et al. (10, p 667)
found “a signifcant correlation between students’ expectations
at the beginning of the semester and learning outcomes.”
Te measurement of student expectations and beliefs has
been an area of investigation in the physics community for some
years (11–14), however studies in chemistry are more limited
(2, 10, 15). Monitoring student beliefs provides instructors
with information about how their teaching methods infuence
students’ views about chemistry and what it means to learn
chemistry. Tis type of attitudinal information difers from
the previous work of Bauer (2) in that his work addresses the
students’ self-efcacy about chemistry and learning, not their
beliefs about the discipline of chemistry.
In order to investigate students’ beliefs about chemistry
and the learning of chemistry we have modifed the Colorado
Learning Attitudes about Science Survey (CLASS), originally
designed for use in physics (CLASS-Phys) (11). Te survey is
designed to be used in a wide range of undergraduate chemistry
courses (from survey courses for nonscience majors to graduate-
level courses).
1
Survey statements are grouped into categories
that refect various aspects of student thinking. Tese categories
emerge from analysis of student response data using the modi-
fed principal component analysis method developed during
creation of the original CLASS survey (11).
Instrument Design
Many surveys probe various aspects of student attitudes
about science (2, 13–15). Two designed specifcally for chemis-
try are the Chemistry Expectations Survey (CHEMX) (15) and
the Chemistry Self-Concept Inventory (CSCI) (2).
Statements in the CLASS-Chem survey are written to be
meaningful for a range of students and designed to address a
wide variety of beliefs about:
1. Learning chemistry
2. Te content of chemistry knowledge
3. Te structure of chemistry knowledge
4. Te connection of chemistry to the real world
Te diferences between CLASS-Chem, CHEMX, and
CSCI are few yet important. CHEMX difers in three main
areas. First, CLASS statements probe students’ beliefs, not
Chemical Education Research
edited by
Diane M. Bunce
The Catholic University of America
Washington, DC 20064
Textbox 1. Contrasting novice and expert beliefs juxtaposed relative
to three fundamental aspects of chemistry. (Adapted from ref 1.)
†
Current address: Department of Chemistry and Biochemistry,
Northern Arizona University, Flagstaff, AZ 86011