Previous research has shown that engagement in a task is directly linked to a person's motivational beliefs [1] . Motivational theories have been incorporated into domains like psychology and education for decades in order to help explain student performance in many different areas [1][2] [3] . Recently, researchers in engineering education have used the Expectancy-Value Theory of motivation to assess academic and achievement behaviors in students [4][5][6] [7] . Specifically, motivation theories have been used to assess the probability of a student's intention to leave a given field or major [4][6] . Due to the attrition problem that affects about 50% of engineering students in universities across the country [8][9] , the use of motivational theories could prove to be a useful tool in further exploring the attrition issue and finding answers. As part of a larger research program, the current study attempts to validate an instrument, the Engineering Students' Motivational Beliefs Scale (ESMBS), through the use of the Benson's Model of Construct Validation [10] . The development of the ESMBS is based on an Expectancy, Value, and Cost framework of motivation and assesses students' motivational beliefs in the context of engineering education [11] . Because preliminary data yielded mixed findings regarding the internal consistency of some of the subscales [11] , the paper herein serves to show findings from a second administration of the instrument, along with inter-correlations between items and future directions for the development of the ESMBS, in attempts to further examine these psychometric issues. The researchers believe that a bigger sample size was needed in order to make any claims about the functioning of the ESMBS items, thus the need for a new larger study.The Expectancy-Value Cost (EVC) model was created under the umbrella of the Expectancy Value Theory (EVT) of motivation, which has been a major theory for researching achievement related behaviors in many different educational domains [2][3] . EVT posits that motivation towards a specific activity or domain is driven by a person's expectations of obtaining a specific goal and the value that one ascribes to said goal [12] . The main components of EVT, expectancy and value, are believed to impact motivation and have shown to be very useful in research on academic behavior [13] . The first component, expectancy, refers to the expectancy that a person has for being successful at a given task. The second component deals with the value ascribed to the specific task, and can be broken down into four subcomponents; interest, attainment, utility, and its moderator, cost [14] .
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