This report briefly reviews the design and scoring procedure for the "TOEIC"® Speaking test and summarizes existing evidence about the consistency of TOEIC Speaking test scores. It then describes several analyses conducted using generalizability theory to provide additional information about the consistency of scores across different…

Two studies were conducted for the development and validation of a multidimensional test to assess undergraduate students' mathematical thinking about derivative. The first study involved two phases: question generation and refinement of the Thinking-about-Derivative Test (TDT). The second study included four phases as follows: test…

This paper reports the results of generalizability theory (G) analyses done for new writing and speaking tasks for the Test of English as a Foreign Language (TOEFL). For writing, a special focus was placed on evaluating the impact on the reliability of the number of raters (or ratings) per essay (one or two) and the number of tasks (one, two, or…

Through the standard error, rather than a reliability coefficient, generalizability theory provides an indicator of the uncertainty attached to school and individual scores on performance assessments. Recommendations are made to apply generalizability theory to current performance assessments, emphasizing practices that differ from usual…

This study examines the score dependability of writing and speaking assessments from the Test of English as a Foreign Language (TOEFL) from the perspectives of univariate and multivariate generalizability theory (G-theory) and presents the findings of three separate G-theory studies. For writing, the focus was on evaluating the impact on…

Generalizability theory (g-theory) was used, as an alternative to classical test theory, to evaluate measurement error in a behaviorally anchored role-play measure, highlighting the usefulness of this theory in instrument development. G-theory partitions an observed score into the universe score and error scores associated with separate sources of…