This dissertation includes two independent research projects, one in astronomy education research and the other in planetary science/astrophysics research. In the first research effort, we investigate college students' conceptual and reasoning difficulties on the topic of planet formation pre-instruction. Through an analysis of over 1,000…

Chemical representations play an important role in helping learners to understand chemical contents. Thus, dealing with chemical representations is a necessity for learning chemistry, but at the same time, it presents a great challenge to learners. Due to this great challenge, it is not surprising that numerous national and international studies…

Test scores are used to assess one's general knowledge of a specific area. Although strategies to improve test performance have been previously identified, the consistency with which one uses these strategies has not been analyzed in such a way that allows assessment of how much consistency affects overall performance. Participants completed one…

This study examined the Flynn Effect (FE; i.e., the rise in IQ scores over time) in Estonia from Scale B of the National Intelligence Test using both classical test theory (CTT) and item response theory (IRT) methods. Secondary data from two cohorts (1934, n = 890 and 2006, n = 913) of students were analyzed, using both classical test theory (CTT)…

The purpose of multiple choice tests of medical knowledge is to estimate as accurately as possible a candidate's level of knowledge. However, concern is sometimes expressed that multiple choice tests may also discriminate in undesirable and irrelevant ways, such as between minority ethnic groups or by sex of candidates. There is little literature…

Multiple choice questions that could logically provide two or more choices block the expression of judgment, thereby suppressing measurement of learning and failing to provide feedback to students and teachers. This study compares the effects of content identical multiple choice and multiple true false items on students' decision. (MT)

Educational assessment concerns inference about student knowledge, skills, and accomplishments. Test theory has evolved in part to address questions of weight, coverage, and import of data. Resulting concepts and techniques can be viewed as applications of more general principles for inference in the presence of uncertainty. (SLD)

Four tests were chosen for a study that investigated the hypothesis that individual differences in aural comprehension might anticipate individual differences in general information. A composite of eight subtest scores from the Test of General Information (TGI) was used as a measure of students' general knowledge. The Listening section of the…

The view of learning that underlies standard test theory is inconsistent with the view rapidly emerging from cognitive and educational psychology. Learners become more competent not simply by learning more facts and skills, but by reconfiguring their knowledge; by "chunking" information to reduce memory loads; and by developing…

The purpose of this study was to examine the nature and degree of differences in expert versus novice knowledge structures, both before and after training, when judging the similarity of multiple-choice test items within a statistics and test theory (STT) domain. Subjects were employees of the Testing Division of the New York State Department of…

Given the frequency with which teachers use self-developed tests to evaluate students, and given the paucity of requirements related to developing measurement competencies, some educators and measurement specialists question the adequacy of teachers' training in and knowledge of measurement principles. This study assesses teachers' measurement…

The Florida Teacher Certification Examination (FTCE) is based upon selected competencies that have been identified as minimal entry-level skills for prospective teachers. A description is given of the four subtests which make up the FTCE: (1) writing--essay on general topics; (2) reading--multiple choice "cloze" procedure on general…

The Florida Teacher Certification Examination (FTCE) is based upon selected competencies that have been identified as minimal entry-level skills for prospective teachers. A description is given of the four subtests which make up the FTCE: (1) writing--essay on general topics; (2) reading--multiple choice "cloze" procedure on general…