牧グループは,日本人大学生の英語能力を測定するために,CD を聞きながら,問題用紙の空欄に英単語を埋めていく,簡易型(時間短縮系)英語能力測定試験としての5分間の最小英語テスト(Minimal English Test, MET)を開発した。本研究では,工学部の学生において,6単語毎(5単語置き)に空欄を設けた,6単語毎版(5単語置き版)最小英語テスト(Minimal English Test 6B, MET 6B)を実施し,MET6Bの得点と,大学入試センター試験(2014年)の英語の得点の間に,統計的有意な相関があるかどうかを調査した。回帰分析の結果,(1)工学部の学生に関して,MET 6Bは,大学入試センターの英語試験における読解力だけを予測するものではなく,読解力と聴解力を合わせた英語総合得点を予測するものであること,(2)これまで牧グループが,様々な学部の学生を対象に行ってきたMET6A/6B調査における,MET6A/6B得点と大学入試センター試験の英語総合点との間の相関係数に比べ(.53, Maki, Wasada, and Hashimoto (2003) developed the Minimal English Test (MET), a 5-minute English test, which requires the test taker to write a correct English word with 4 letters or fewer into each of the 72 blank spaces of the given sentences while listening to the CD. Revising the original MET, the Maki group created the MET 6A/6B, where every 6th word was a target word. The MET 6A and the MET 6B only differ in the position of the first target word. Their past surveys include the English learners of a variety of majors. In this research we investigated whether the MET 6B can correctly measure English proficiency of university freshmen who major in a particular academic field, such as engineering. We examined the correlations between the scores on the MET 6B and the scores on the English Part of the University Entrance Examinations administered by the National Center for University Entrance Examination in Japan. We call the University Entrance Examination (English Part) the Center Test (CT) in this paper. Our findings are as follows: First, for the engineering majors, the MET 6B does not simply predict the scores on the Reading Section of the CT 2014, but rather predicts the total scores on the CT 2014. Second, the correlation coefficient between the scores on the MET 6B and the total scores on the CT 2014 with respect to the engineering majors (r=.43) is far lower than the results of the Maki Group's past surveys from 2009 to 2014, in which the correlation coefficients between the scores on the MET 6A/6B and the total scores on the CTs are more or less consistent (from .53 to .61). This seems to indicate that the current version of the MET 6B does not precisely predict English proficiency of engineering majors, in terms of the total scores on the CT. This in turn suggests that there may be some unknown factors that cause the correlation coefficient between the scores on the MET 6B and the total scores on the CT 2014 for the English learners majoring in engineering to be far lower than those for the English learners of a variety of majors. It is then necessary to uncover those factors, and depending on what they are, create a different version of the MET as a useful tool to measure English proficiency of engineering majors.