Investigating the predictive validity of a novel measure of spatial visualization ability
Cheryl Cohen, Lecturer
Department of Psychology
University of Illinois at Chicago
Chicago, IL 60602
Andrew Dombard, Associate Professor and Director of Graduate Studies
Department of Earth and Environmental Studies
University of Illinois at Chicago
Chicago, IL 60602
1. Study Hypothesis and Specific Aims (purpose, objectives)
The purpose of this study is to establish the predictive validity of a novel 30-item multiple
choice measure (the Santa Barbara Solids Test) in predicting performance on tasks that require
the ability to identify the cross section of a three-dimensional object. The hypothesis is that there
will be a significant positive correlation between performance on the Santa Barbara Solids Test
and the criterion measure, (performance bon geological blocks test, as presented in
Geology____). The target population is students enrolled in introductory structural geology class
(course number)
2. Background and Significance
The Santa Barbara Solids Test is a 30-item multiple choice test that measures individual
differences in ability to identify the two-dimensional cross section of a three-dimensional
geometric solid, a skill that has been identified as important in science, technology, engineering
and mathematics (STEM) fields. Test items varied along two scales: complexity of the
geometric solid to be sliced and orientation of the cutting plane. Internal reliability of both the
overall test and its subscales was satisfactory. Bivariate and partial correlations suggest
that the test measures a skill that is distinct from three-dimensional mental rotation and change in
view perspective (Cohen & Hegarty, 2012). (discuss populations)
The test shows promise for online administration and for adaptation to younger populations.
Cohen & Hegarty (2007; 2012) established that the Santa Barbara Solids Test has satisfactory
internal reliability. Establishing the predictive validity of this measure would expand the
application of the test. Testing this sample population on performance on geoblocks would
provide a measure of ecologically validity.
3. Methods
a. Research Design
The study is intended to be a correlational study.
Correlational study.
b. Eligibility Criteria
The sample population will consist of student enrolled in introductory geology class
(name of class) at UIC.
c. Justification for inclusion of any special or vulnerable populations
d. Plans for subject selection, recruitment, and documentation of informed consent
Students will be
e. Description of Procedures
f. Statistical Methods
i. Planned statistical analysis
ii. Rationale for selection of subject
g. Safety Monitoring and Assessment (if relevant, include provisions for managing
adverse reactions)
h. Data management (when relevant, address measures of privacy protection, coding,
storage of information)
4. For multi-site protocols, an overall study management plan should be provided.
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2. ^ The Marketing Accountability Standards Board (MASB) endorses this definition as
part of its ongoing Common Language: Marketing Activities and Metrics Project.
3. ^ American Educational Research Association, American Psychological Association, &
National Council on Measurement in Education. (1999). Standards for educational and
psychological testing. Washington, DC: American Educational Research Association.
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from persons’ responses and performances as scientific inquiry into score meaning.
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