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The purpose of this study is to develop a theoretically and methodologically sound bidimensional affective scale measuring mathematics anxiety with high psychometric quality. The psychometric properties of a 14-item Mathematics Anxiety Scale-Revised (MAS-R) adapted from Betz's (1978) 10-item Mathematics Anxiety Scale were empirically analyzed on a college sample for its internal consistency reliability, parallel-item reliability, and construct validity. In addition, the bidimensionality of MAS-R was verified through the two-factor measurement model that fitted to the data significantly better than the one-factor model . Therefore, MASR is a psychometrically reliable and valid instrument for measuring bidimensional mathematics anxiety. Implications of the bidimensional affective scale in measuring mathematics anxiety are discussed.
Keywords: mathematics anxiety, Mathematics Anxiety Scale, mathematics education , psychometric property, factor analysis
Mathematics education has been in the center stage of accountability reform since the No Child Left Behind Act went into effect in 2002 (NCLB ,2002). Mathematics literacy is regarded as a "civil issue" because of its leverage in mitigating social and economic inequity (Schoenfeld, 2002). Students and educators alike are under unprecedented pressure to achieve state proficiency standards and to close the achievement gaps (Farmer, 2005; Harris & Herrington, 2006; Jones, Jones, & Hargrove, 2003; Taylar, 2006; YeopKim,Zabel,Stiefel,&Schwartz,2006). Among the many correlates of mathematics achievement, mathematics anxiety has been shown to be a significant factor of learning success (Cates & Rhymer, 2003; Hembree, 1990; Pajares & Miller, 1994; Ramirez & Dockweiler, 1 987 ; Ryan & Ry an, 2005; Singh, Granville, & Dika, 2002). Individuals with high mathematics anxiety tend to perform poorly when presented with mathematics stimuli (Cates & Rhymer, 2003) with a common population correlation estimated at -.27 (Ma, 1999). Furthermore, individuals with mathematics anxiety have shown to avoid environments and careers that require the utilization of mathematics skills (Ashcraft, 2002) . Therefore , it can be inferred that mathematics anxiety greatly impacts mathematics education and students' career choice.
Research on mathematics anxiety has shown that it is a multidimensional psychological construct that involves complex factors, such as feelings of pressure, performance inadequacy, and test anxiety that interfere with the manipulation of numbers and solving mathematical problems in a wide variety of ordinary life and academic situations (Kazelskis, 1998; McMorris, 2004; Rounds & Hendel, 1980). The measurement of mathematics...