Univariate generalizability theory in language assessment

Yasuyo Sawaki, Xiaoming Xi

研究成果: Chapter

2 被引用数 (Scopus)


This chapter provides a brief overview of generalizability theory (G theory), a framework for modeling different sources of score variability contributing to measurement inconsistency. First, this chapter introduces basic concepts of G theory in relation to characteristics of classical test theory (CTT), highlighting a notable strength of G theory in allowing for the analysis of selected and constructed item responses for both norm-referenced and criterion-referenced assessments. Then a step-by-step demonstration is provided to illustrate how a dataset could be analyzed using G theory to address specific research questions concerning measurement consistency. Major considerations for determining rating designs are also discussed so as to ensure that a G theory analysis generates meaningful and interpretable results. As an illustrative example, the process of analyzing a language performance assessment dataset by using a univariate G theory analysis software, GENOVA, is described. Results of the analysis are discussed along with key considerations in designing and conducting language assessment studies using G theory.

ホスト出版物のタイトルQuantitative Data Analysis for Language Assessment Volume I
ホスト出版物のサブタイトルFundamental Techniques
出版社Taylor and Francis
出版ステータスPublished - 2019 1月 1

ASJC Scopus subject areas

  • 社会科学(全般)
  • 心理学(全般)
  • 人文科学(全般)


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