岐阜市立女子短期大学研究紀要第62輯(平成25年3月)

抄録

指標の妥当性をどう捉え,妥当性検証をどのように行うべきか

語彙の豊かさ指標「S」の解釈的論証

Towards exploring a suitable way to validate measurements in second language acquisition studies
Interpretive arguments for validation of the lexical richness measure S

小島ますみ
Masumi KOJIMA

Abstract

The purpose of this paper is to examine the concept of validity in tests and measurements and to investigate several approaches to validation through a survey of previous studies and discussion. Next, it explores a suitable approach to validate the lexical richness measure S, which is proposed by Kojima (2010). S is developed to assess the productive vocabulary of learners in their written or spoken texts. Validity is considered as an integrated evaluative judgement of the degree to which empirical evidence and theoretical rationales support the adequacy and appropriateness of inferences and actions based on test scores or other modes of assessment (Messick, 1989). The argument-based approach of Kane (2006) is employed, and interpretive arguments for the validation of S are discussed.

Keywords : 妥当性,妥当化,論証に基づくアプローチ,語彙の豊かさ,S