- 1Department of Mathematics, Clarkson University, Potsdam, NY, United States
- 2Department of Education, Clarkson University, Schenectady, NY, United States
Several studies have been conducted to understand the predictors of academic performance of various levels of high school and undergraduate students as quantified by the grade point average. This study focuses specifically on engineering students as they differ from other undergraduate students in their background and expectations. We focus on quantifying essential predictors of the performance of engineering students in an advanced mathematics course. We collected data from 72 participants recruited from engineering students enrolled in the advanced engineering mathematics (AEM) course in a research university. We chose this course to represent a standard engineering mathematics course covering several essential topics. We consider several factors in our analysis, such as cellphone usage and the academic background, e.g., the academic year, number of minors, and majors, performance in prerequisite courses. We perform several regression analyses to understand the effects of cellphone usage, course schedule, and academic background on performance in the AEM course and its prerequisites. In particular, we use the stepwise regression technique using forward selection and backward elimination procedures. We discovered a few interesting findings in this case study. Firstly, for the participants in this study, we find that the daily average “screen time” on their cellphones is not a statistically significant predictor of student performance. This finding contradicts some prior studies on this participant and may indicate adaption and integration of the technology by the new generation of students in recent years. We also found that the lecturing schedule was not an influential factor for their academic performance. These findings are especially relevant during the COVID-19 pandemic, as they suggest that advanced engineering students have adapted to the use of technology and are flexible concerning lecture schedules. Another unexpected finding is that this study brings new evidence that the number of minors taken by the participants is a negative predictor of their grade in the AEM course. This observation may indicate that course-work from non-major classes may adversely impact their performance in mathematical engineering courses.
1 Introduction
This paper aims to find and quantify the factors affecting academic success in an undergraduate-level course in advanced engineering mathematics (AEM). Our focus in this work is on factors available to the instructors to improve the quality of the course. In this cross-sectional case study (Yin, 1994), we enlist 72 students enrolled in the “Advanced Engineering Course” in a private university in the United States.
Numerous studies have elaborated on various factors behind academic success. Some of the factors that have been shown to impact academic success are socioeconomic status (SES), self-efficacy, course load, duration and frequency of lectures, and prior academic performance. In recent years mobile technology has become universally accessible, with several researchers studying the impact of cellphones on academic achievements. Since this topic is vast, the above list is by no means an exhaustive one. We first review the literature on this topic and then elaborate on the rationale behind our research choices in this study. The relation between SES and academic success is well-established in the literature. A meta-analysis of 200 studies (White, 1982) showed that socioeconomic status and academic achievements are positively correlated. A replica of the study (Sirin, 2005) across 128 school districts showed a medium to strong SES–achievement relation.
Bandura (2010) defines “self-efficacy” as believing in their ability to influence events affecting their lives. Motlagh et al. (2011) show that self-efficacy is highly correlated with high school students’ academic achievement. Komarraju and Nadler (2013), de Fátima Goulão (2014) use multiple regression analysis to show that self-efficacy results in higher academic achievement in undergraduate students. Attewell and Monaghan (2016) study the rate of completion and time to degree completion and find that students who attempt 15 rather than 12 credits in their first-year graduate at significantly higher rates within 6 years of initial enrollment. Ann Clovis and Chang (2019) show that the number of credits earned in the first year is a positive indicator of attainment of degree who begin college at a 2-year institution. A study of a sample of first-year students by Szafran (2001) shows that students who register for more credits tend to earn higher GPAs.
To investigate if the lecture frequency matters for academic success, Henebry (1997) analyzes student performance in classes scheduled 1 day a week, 2 days a week, and 3 days a week. The results indicate that students have a better chance of passing the course when a class schedule meets more than once a week. Gallo and Odu (2009) examine the academic performance of students enrolled in a college algebra course. Similar to the studies by Henebry (1997), Gallo and Odu (2009) study three different lecture schedules: once per week, twice per week, and three times per week. Henebry (1997) uses regression analysis to show that the students with only one lecture per week performed significantly worse than the other two groups. We note that the academic performance between students who had two lectures per week and students who had three lectures per week was not statistically different in both these studies. However, these findings are contradicted by a recent study by Trout (2018), in which accounting students in the 1-day-a-week class performed significantly better than students in the two lectures per week. McKenzie and Schweitzer (2001) identify previous academic performance as one of the factors predicting academic success. Newman-Ford et al. (2009) find that prior educational attainment is one of the significant predictors of academic achievements. De Winter and Dodou (2011) show that high school exam scores in the natural sciences and mathematics are the strongest predictors of first-year GPA and engineering degree completion, whereas the language factor has no significant predictive value. These findings are further supported by Anderton et al. (2017) and Hine et al. (2015) for health science students. Although several studies have shown that students’ prior mathematics skills are a good predictor of undergraduate success, considering the overall high school GPA may not be effective. Indeed, Noble and Sawyer (2002) show that a high school GPA is “not” an effective predictor of the first-year GPA.
There have been several studies conducted concerning the impact of cellphone usage on learning. Lepp et al. (2014) demonstrate that cellphone usage was significantly and negatively related to actual college GPA. Duncan et al. (2012) report that in-class use of cellphones leads to lower grades. Lepp et al. (2015) also showed that college students who use cellphones more than 10 h a day experienced significantly more leisure distress than the other groups. In a 2015 study, Barr et al., 2015 show that cognitive ability was associated with less smartphone use and less time spend using online search engines. In Samaha and Hawi (2016) and Hawi and Samaha (2016), the researchers show that a smartphone addiction risk was negatively related to academic performance. Although numerous studies show cellphones impact academic achievement negatively, some studies fail to confirm this conclusion. For example, Lee (2015) does not find evidence that cellphone use impacted academic performance negatively. A correlation analysis by Winskel et al. (2019) did show significant association between cellphone use and academic performance of university students. Olufadi (2015) conclude in their work that no single mobile phone use behavior was sufficient to influence academic performance.
1.1 Rationale Behind the Selection of Factors in the Study
We design this study to help instructors and advisers to make appropriate decisions regarding engineering students taking advanced mathematics courses. We make our research choices with this goal in mind. Although socioeconomic status is a significant predictor of academic success, we did not consider it for this study for two reasons. Firstly, the students in our case study are from a private research university in the United States enrolled in a single course, a single semester. Thus, there is a lack of diversity in the SES of participants of this study. Secondly, an instructor is unlikely to have access to the SES of their students in the class. Hence, while SES may be a vital tool (White, 1982; Sirin, 2005) for administrators while making policies, it is of limited practical use to an instructor. Moreover, in most cases, the instructors do not have access to the SES of the students. Hence, we do not study the impact of SES on academic success in our work. Similarly, self-efficacy is a relevant indicator of student success (Bandura, 2010; Motlagh et al., 2011; Komarraju and Nadler, 2013; de Fátima Goulão, 2014). However, the methodology of self-efficacy measurement varies (Mamaril et al., 2016)). Since measuring self-efficacy is not a viable option for most instructors, we do not include it as a factor in our analysis.
While the connection between the course load and academic achievement is well-studied (Szafran, 2001; Attewell and Monaghan, 2016; Ann Clovis and Chang, 2019), the link between the number of “minor degrees” pursued and academic success is not well-understood. To this effect, we include the “number of minors degrees sought” (Nmnr) as one of the study factors. We include the number of majors (Nmjr) as a control factor in the study. While all students were from a similar background, the academic year was not necessarily the same for all the participants. Thus we added GradYr as one of the control variables. Whether students succeed better in a course with two lectures per week or three lectures per week is a pertinent question for advisers and departments when scheduling classes. In light of Trout (2018), the issue is not settled. Since the same instructor was teaching the AEM course with two different schedules, we decided to study the effect of schedules on student success. The variable MWF serves this purpose. The variable MWF equals 1 if the student has a 50-min lecture on Monday, Wednesday, and Friday, and it is 0 if they have a 75-min lecture on Mondays and Wednesdays.
While most studies depicted a negative relationship between cellphone usage and academic performance, the lack of consensus in different studies necessitates further research. To understand the influence of screen time on grades [c.f. Samaha and Hawi (2016) and Hawi and Samaha (2016)], we include the average amount of time in hours that the participants spend on their cellphones per day (screen) in our study. Sarraf et al. (2014) found a significant difference in the survey completion rate of iPhone users and Android users. Thus, we incorporate the variable iPhone, which equals 1 if the participant uses iPhone®and 0 if they do not. Mendoza et al. (2018) show that participants who kept their cellphones with them performed worse on a quiz than those without cellphones. To take this phenomenon into account, we include a variable PhAwy which is equal to 1 if the student keeps their phone out-of-sight during the lectures and 0 if they do not. We also wanted to understand whether the students’ personal opinion about the cellphone being a distraction influences their grades or not. To this effect, we include the variable PhDistr, which equals 1 if the student thinks that using phones during the lectures is distracting to their attention.
Lastly, Simonsmeier et al. (2018), Wade and Kidd (2019), and numerous other studies have shown a strong relationship between prior knowledge and learning. We decided to add the prior knowledge as a control for this study. Instead of including the prior GPA in the study, we consider the participants’ performance in the prerequisite courses as prior knowledge. This design choice allows us to examine the role of the prerequisites courses individually. The prerequisites for the AEM course are Calculus III and Elementary Differential Equations. Thus, we include grades in Calculus III (Calc3) and Elementary Differential Equations (Diffeq) as explanatory variables for the model. Moreover, Calculus I and Calculus II are prerequisites for Calculus III. Hence we also include Calculus I grades (Calc1) and Calculus II grades (Calc2) in our models.
1.2 Choice of the Course for the Case Study
Engineering students significantly differ from liberal arts students. To this effect (Liu and Liang, 2020), find neurocognitive evidence for differences in verbal, numerical, and spatial problem-solving processes between engineering and liberal arts students (Scott and Sedlacek, 1975). use discriminant analysis techniques to show that physical scientists are different from engineers along an introspection-intellectual vs. social conventional dimension. The engineering curriculum also emphasizes applications and requires various mathematics courses such as calculus, differential equations, and numerical algebra. For example, the criteria published by the Accreditation Board for Engineering and Technology, Inc (ABET) for accrediting Mechanical Engineering Programs (Accreditation Board for Engineering and Technology, Inc., 2019, p. 30) states that the program curriculum.
“…must require students to apply principles of engineering, basic science, and mathematics (including multivariate calculus and differential equations); to model, analyze, design, and realize physical systems, components, or processes; and prepare students to work professionally in either thermal or mechanical systems while requiring topics in each area.”
Most mathematics courses, such as the Calculus sequence, are open for students of all majors. However, the course “AEM” is specifically designed for engineering students. Hence, we recruit participants from students enrolled in the AEM course, isolating only the engineering students from other majors. The course typically consists of the following topics and their applications: 1) probability and statistics, 2) linear algebra, 3) ordinary and partial differential equations.
1.3 Research Questions and Hypotheses
Given the rationale detailed in section Rationale Behind the Selection of Factors in the Study we are interested in the following research questions related to a typical engineering course:
(1). Is the amount of cellphone usage related to their grades?
(2). Does the number of minor degrees influence their grades?
(3). Is there a relation between lecturing schedule and academic performance?
To investigate the research questions formulated above, we begin with the following research hypotheses for a typical engineering undergraduate student:
(1). Academic performance in an AEM course is negatively and significantly related to their daily cellphone usage.
(2). Academic performance in an AEM course is unrelated to the number of minors taken by the students.
(3). Academic performance in an AEM course is related to the length and frequency of the lecture meetings per week.
In the following section Methodology, we describe our sample, data acquisition, preprocessing of the data. In section Analytical Approach we describe our analytical approach to obtain linear models for predicting grades in AEM, Calculus III, Calculus II, and Elementary Differential Equations. We describe the results obtained from the analysis in section Results. In section Discussion we discuss the results and their implications.
2 Methodology
2.1 Description of the Sample
The subjects for this study are engineering students from a private research institute in the northeast region of the United States. The course is intended for Mechanical and Aeronautical Engineering majors. The course covered topics such as applications of linear algebra, differential equations, and statistics. The prerequisites for the course were calculus III and differential equations. Most students in the course were junior and senior engineering students. Participants were informed that the survey would not be available to the researchers before the grades were posted.
2.2 Data Acquisition
Questionnaires were distributed to all students enrolled in the course “AEM” in Fall 2018. Out of all the students who received the questionnaire, 72 students participated in the study. The responses were stored in the department office until after the grades were posted. In the questionnaires, the students reported their grades from their courses: Calculus I, Calculus II, Calculus III, and Elementary Differential Equations. They were also requested to report the “current” AEM grade. There were two sections of this course. One section met three times per week (Monday, Wednesday, and Friday) for 50 min sessions, whereas the other met two times per week for 75-min sessions. Both sections had all the exams simultaneously and had the same homework due online, at the same time every week. They were also requested to report the “current” AEM grade, which was available to the students in the Learning Management System used by the university. In the survey, we requested the students for miscellaneous information such as their current academic year, the number of majors, minors, number of prerequisites for the course taken at a different institute, i.e., either at high school or other colleges before attending their current institute. Questions related to their cellphone usage included the type of phone (i.e., iPhone, Android, or other) the students use, the amount of screen time per day, whether they think that using a cellphone during the lecture is a distraction, or not. The screen time in this study refers to the average amount of time spent on their cellphones during a typical 24-h day. The survey asked the students if they keep their cellphone out of sight during the lectures. See Table 1 for precise definitions of all the variables. We note that the use of cellphones during the AEM course was discouraged. However, there were no academic consequences if the students used their cellphones during lectures.
2.3 Preprocessing the Data
We have 72 observations with 16 variables in the data collected. Some of the variables had missing values and outliers. One way to deal with this issue is to remove observations with missing values or outliers altogether. However, since we collected 16 variables for each observation, removing one observation due to a missing value or an outlier would remove the other 15 variables. This approach can seriously degrade the quality of the data set. Moreover (Quintano et al., 2010), show that the presence of outliers can produce a deviation from the actual data pattern. Since we have a relatively small number of participants, we replace the missing values and outliers with imputations generated by “multiple imputations by chained equations” (Van Buuren et al., 1999; Van Buuren et al., 2006). To this effect, we used the “MICE” package in R. We identify the outliers using the “boxplot.stats” function in R (McGill et al., 1978, p. 16). Removal of the outliers rendered the variables NMjr, PhOnce, and PhAlways as redundant, and thus we removed these variables from further analysis.
2.4 Coding Language and Libraries Used
For our coding, we used R language (version 4.0.0) on a Mac Operating System [x86_64-apple-darwin17.0 (64-bit)]. We used the following libraries in our coding: readxl, stats, mice, Hmisc, MASS, dplyr, ggpubr, car, pwr, corrplot, ggplot2, qqplotr, mctest, plot3D.
2.5 Analytical Approach
2.5.1 Descriptive Analysis
We begin with the study of the descriptive statistics of the data (see Table 1), and Pearson correlations (see Table 2) between all variables.
2.5.2 Constructing Linear Models With Grades in Advanced Engineering Mathematics as a Response Variable
We aim to construct a linear model with grades in advanced engineering mathematics as the response variable. We begin with a model that includes all possible explanatory variables, and we refer to it as the preliminary model
2.5.3 Constructing Linear Models With Grades in Advanced Engineering Mathematics as a Response Variable Using Stepwise Regression Technique
The selection of appropriate variables is essential while constructing a linear model with multiple variables. Including more number of explanatory variables increases the coefficient of determination (
2.5.4 Constructing Linear Models With Grades in Prerequisite Courses as Response Variables
We repeat the process of constructing linear model
3 Results
3.1 Descriptive Statistics and Correlations
In Table 3 we describe the descriptive statistics for the variables used in this study. Table 2 shows the details of Pearson correlations between all variables and their 2-tailed significance levels. We can readily see the positive and statistically significant correlation between the variables representing the grades, i.e., AEM, Calc1, Calc2, Calc3, and Diffeq.
3.2 Linear Models for With Grades in Advanced Engineering Mathematics as a Response Variable
The preliminary linear model (
FIGURE 1. (A) Histogram of the residuals for the model (
3.3 Linear Models for Grades in the Prerequisite Courses as Response Variables
The linear model
TABLE 5. Linear models with grades in Calculus II, Calculus III, and Elementary Differential Equations as response variables.
4 Discussion
One of the findings of this study is that the amount of time on a cellphone, i.e., screen time (screen) was not a statistically significant predictor of grades in the AEM course in the preliminary (
This study found no statistically significant difference between students’ academic performance with three lectures per week and students with two lectures per week. Recall that Henebry (1997), and Gallo and Odu (2009) showed that academic performance for students with two or three lectures per week was better than those with only one lecture per week. However, they did not find a significant difference in academic performance between students with two lectures per week and students with three lectures per week. Our findings confirm their conclusion. The models
Finally, our finding suggests that for the students in our study, the number of minors taken by the students is a negative predictor of the academic performance in the AEM course. This phenomenon could be due to the “mathematics avoidance behavior” (D’Ailly and Bergering, 1992). The students may be opting to spend more time studying for non-engineering courses than the AEM course. However, an investigation into this phenomenon was beyond the scope of this study.
4.1 Practical Implications and Future Work
The lack of evidence between screen time and academic performance in the AEM course indicates that the students are better at balancing cellphone usage and work. Olufadi (2015) has suggested that the “hours of study” is a better predictor of academic success than screen time. Indeed, measuring only the screen time does not provide us with the correct understanding of how the participants use the cell phones. The students may be using their devices for educational purposes. Indeed, Borba et al., (2016) conclude that mobile technology is transforming the classroom, and it can be effectively used in mathematics education. Regarding the effect of scheduling, multiple studies [c.f. Henebry (1997); Gallo and Odu (2009)] have failed to find evidence that three lectures per week are better than two lectures per week. Our study confirms this perspective. A practical implication of this finding could be to use two lectures per week for advanced courses. The use of two lectures per week can open more time for research activities for the faculty and students alike. The number of minor degrees pursued has a negative impact on participants’ academic performance in the AEM course. This finding suggests that care should be taken by academic advisors while offering additional minor degrees to students.
4.2 Limitations
In the survey, we asked for the average daily screen time. However, the data concerning the participants’ use of their cell phones for educational purposes was not collected. We made this choice for practicality; however, Olufadi (2015) points out that a single variable describing the cell phone use behavior is not enough to understand the academic performance.
One other limitation of our work is that this is a cross-sectional study. We recruited the participants from a single course in one academic semester. This design led to small sample size and lack of diversity in the subjects. Thus, readers should note this while generalizing the conclusions. We have begun collecting data from multiple years, and intend to expand upon this work for a larger sample size in a longitudinal study.
5 Conclusion
In this cross-sectional study, we aimed to understand the factors that influence the academic performance of engineering students in a typical engineering mathematics course. One of our goals was to understand the relation between screen time on cellphones and grades in such a course. We also aimed to understand how the academic background, such as the number of minor degrees pursued and lecturing schedule, are related to grades in a typical engineering mathematics course. To this effect, we recruited students from the course “AEM” from a private research university. We gathered information regarding their cellphone usage, academic background, class schedule via a survey. We formulated linear models with the AEM course grades as a response variable using stepwise regression techniques. Contrary to some prior work, we found that the amount of time spent on cell phones was not a significant predictor of success in the course. One of the reasons behind this finding could be that this study’s participants have successfully integrated mobile technology and their academic pursuits. Recall that both sections were taught by the same instructor, with the same course content, including assignments and exams. The only difference between the two sections was the schedule. However, we observed no significant difference in the academic success between sections meeting twice a week and three times a week. This observation is in line with findings by Henebry (1997) and Gallo and Odu (2009), where they found no significant difference in the academic performance of students with two lecture meetings per week and three lecture meetings per week. Another interesting finding was that the number of minor degrees pursued by the participants was a negative predictor of the course grades. One of the limitations of the study is its cross-sectional nature, which we hope to eliminate in the future by conducting a large-scale longitudinal research.
Data Availability Statement
The raw data supporting the conclusions of this article will be made available by the authors, without unduereservation in the Github repository at github.com/prashantva/stem_ed_fall2018.
Ethics Statement
The studies involving human participants were reviewed and approved by Institutional Review Board, Clarkson University. The patients/participants provided their written informed consent to participate in this study.
Author Contributions
All authors contributed to the article and approved the submitted version.
Conflict of Interest
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
Supplementary Material
The Supplementary Material for this article can be found online at: https://www.frontiersin.org/articles/10.3389/feduc.2021.662380/full#supplementary-material
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Keywords: COVID-19, engineering mathematics, lecturing schedule, cellphone usage, screen time
Citation: Athavale P, Mondal S and Rivera S (2021) Factors Influencing Success in Advanced Engineering Mathematics Courses: A Case Study. Front. Educ. 6:662380. doi: 10.3389/feduc.2021.662380
Received: 01 February 2021; Accepted: 20 May 2021;
Published: 17 June 2021.
Edited by:
Kotaro Komatsu, University of Tsukuba, JapanReviewed by:
Taro Fujita, University of Exeter, United KingdomChristian Bokhove, University of Southampton, United Kingdom
Copyright © 2021 Athavale, Mondal and Rivera. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
*Correspondence: Prashant Athavale, prashant@clarkson.edu