Neutrosophic Optimization and Intelligent systems
Journal Homepage: sciencesforce.com/nois
Neutrosophic Opt. Int. Syst. Vol. 2 (2024) 7–18
Paper Type: Original Article
Assessing Students Performance Using Neutrosophic Tool
Sunday Adesina Adebisi 1,*
, and Said Broumi 2
Department of Mathematics, Faculty of Science, University of Lagos, Nigeria; adesinasunday@yahoo.com.
Laboratory of Information Processing, Faculty of Science Ben M’Sik, University of Hassan II, Casablanca, Morocco;
broumisaid78@gmail.com; s.broumi@flbenmsik.ma.
1
2
Received: 13 Nov 2023
Revised: 31 Jan 2024
Accepted: 06 Mar 2024
Published: 16 Mar 2024
Abstract
Recently, a lot of educational as well as academic researchers have shown their ultimate interest in educational data
mining techniques. Thus, several studies that can definitely contribute to the improvement of the educational
process are conducted. The results of this lead to several issues that have to be addressed if the students general
academic performances are to be improved. In this paper, we investigate the academic performance of a set of
students in their core subjects. This we did by using the concept of the neutrosophic frequency, as well as the
neutrosophic relative frequency distribution for the class of scores for the set of students. The results give some
form of expectation for their general performance. This case serves as a means to enhance the educational process
of the chosen set of students by identifying the students at risk of failure or dropping out and predicting the
students' academic level at an early stage to provide the necessary support for the at-risk students.
Keywords: Neutrosophic Statistics, Classical Statistics, Crisp Numbers, Neutrosophic Frequency, Netrosophic Relative
Frequency.
1 |Introduction
In recent years, eminent and passionate researchers in the field of educational developments have indicated
their ultimate interest in educational data mining techniques. Thus, several studies that can definitely
contribute to the improvement of the educational process are conducted. The results of this lead to several
issues that have to be addressed if the students general academic performances are to be improved. In this
paper, we investigate the academic performance of a set of students in their core subjects. This we did by
using the concept of the neutrosophic frequency as well as the neutrosophic relative frequency distribution
for the class of scores for the set of students. The results give some form of expectation for their general
performance. This exercise serves as a means to enhance the educational process of the chosen set of students
by identifying the students at risk of failure or dropping out and predicting the students' academic level at an
early stage to provide the necessary support for the at-risk students [10]. Studies involving the exploitation of
the concepts and techniques of neutrosophic inference that rely on neutrosophic logic are very useful in
evaluating the level of human resource performance in economics, institutions, and other working enterprises,
such as in the field of food industries. This logic is an extension of fuzzy logic and is characterized by its
Corresponding Author: adesinasunday@yahoo.com
10.
https://doi.org/10.61356/j.nois.2024.212989
Licensee Neutrosophic Optimization and Intelligent systems. This article is an open access article distributed under the
terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0).
Assessing Students Performance Using Neutrosophic Tool
8
ability to deal with indeterminate information that carries different degrees of truth, falsehood, neutrality, and
uncertainty. This can be further followed by the application of computer software, which produces a
neutrosophic inference system for human resource data that can be related to qualifications, experiences,
skills, productivity, absence, discipline, and others. In [6] (Haitham I. A. Ward et al., 2023), data were
converted into neutrosophic values using membership, comparison, and action functions. Then neutrosophic
rules were used to calculate human resource performance scores in terms of truth, falsehood, neutrality, and
uncertainty. The results of the study showed that the level of human resource performance in the institution
was average in general. Hence, based on their results, some recommendations were presented in order to
improve human resource performance in the institution, such as developing training, motivation, evaluation,
and reward programs.
Education is generally regarded as a necessary and essential requirement for human development. It is central
to socioeconomic and technological advancements, and it is critical to the self-generating process of positive
transformation in modern society. Education is partially about primary socialization and partly about the
process of imparting knowledge for progress and development, both at the individual and group levels.
Education is not just about literacy and enlightenment. It is about value formation, value generation, and
orientation. Having critically examined the word “study,” what is the perception or attitude of students
towards study? This leads us to the meaning and effect of this perception towards study. Attitude or
perception, as defined by a researcher, is a mental or neural state of readiness organized through experience
exerting a directive or dynamic influence upon the individual response to all subjects and situations with
which it is related. In 1996, a researcher defined attitude as a kind of mental state, representing a predisposition
to form an opinion. Attitude is one of the determining factors that aid the development of interest, which
guides action, and the type of attitude that students have developed towards learning has been directed to a
great extent by their academic performance. Thomas (1977) observed that students who have a positive
perception of a subject teacher perform better than those who have a negative perception of their subject.
There are also some attitudes that can affect students learning and have implications for their performance.
These attitudes include students’ expectations, self-concept, cultural differences, and motivation [4]. Sodipo
(2015). We enjoin our readers to refer to [10]–[86] of our references.
An extension of classical statistics is modern neutrosophic statistics. In classical statistics, the data is known
and formed by crisp numbers, while in neutrosophic statistics, the data may have some forms of
indeterminacy. Multiple problems, such as attributes in decision-making processes, are often solved using
hesitant, fuzzy linguistic information. In the case of the neutrosophic statistics, the data may not be so direct.
It may seem vague, ambiguous, incomplete, imprecise, or even unknown.[2] (Florentin Smarandache, 2014).
In practice. Sets (such as intervals) [1] in neutrosophic statistics are used instead of crisp numbers in classical
statistics. In addition, the neutrosophic concepts are undoubtedly very applicable to a host of important
statistical and mathematical ideals and concepts [5, 9].
2 |Preliminaries
Since the advent of neutrosophic statistics through the concerted efforts of Prof. Dr. Florentin Smarandache,
many other significant and essential concepts have continually been developed. This includes, among others,
the introduction of the Neutrosophic Descriptive Statistics (NDS), the Neutrosophic Inferential Statistics
(NIS), the Neutrosophic Applied Statistics (NAS), and the Neutrosophic Statistical Quality Control (NSQC).
Neutrosophic statistics is also a generalization of interval statistics. This is because while interval statistics is
based on interval analysis, neutrosophic statistics is based on set analysis (meaning all kinds of sets, not only
intervals). Hence, the neutrosophic statistics seem to be more elastic when compared with the classical
statistics. For instance, if all the data and inference methods are determinate, then the neutrosophic statistics
coincide with the classical statistics. In reality, our world possesses more indeterminate data than determinate
data. Hence, there is definitely a need for more neutrosophic statistical procedures than classical ones.
9
Adebisi and Broumi | Neutrosophic Opt. Int. Syst. 2 (2024) 7-18
3 |On Neutrosophic Statistics
In neutrosophic statistics, the data may be ambiguous, vague, imprecise, incomplete, or even unknown.
Instead of crisp numbers used in classical statistics, one uses sets (that respectively approximate these crisp
numbers) in neutrosophic statistics [2] (Florentin Smarandache, 2014).
Also, in neutrosophic statistics, the sample size may not be exactly known (for example, the sample size could
be between 30 and 80; this may happen because, for example, the statistician is not sure about the 50 sample
individuals if they belong or not to the population of interest, or because the 50 sample individuals only
partially belong to the population of interest while partially they don’t belong) [8].
In this example, the neutrosophic sample size is taken as an interval n = [30, 80], instead of a crisp number n
= 30 (or n = 80) as in classical statistics. Neutrosophic statistics refers to a set of data, such that the data or a
part of it is indeterminate in some degree, and to methods used to analyze the data (Florentin Smarandache,
2014) [2]. In classical statistics, all data are determined; this is the distinction between neutrosophic statistics
and classical statistics. In many cases, when indeterminacy is zero, neutrosophic statistics coincide with
classical statistics. We can use the neutrosophic measure for measuring indeterminate data. Neutrosophic data
is data that contains some indeterminacy. Similarly to classical statistics, it can be classified as:
- discrete neutrosophic data, if the values are isolated points;for example: 6 + 𝑖1, where 𝑖1 ∈[0,1], 7, 26 + 𝑖2,
𝑖2 ∈[3,5];
- and continuous neutrosophic data, if the values form one or more intervals, for example: [0,0.4] or [0.2 ,1.4]
(i.e. not sure which one).
Another classification: - quantitative (numerical) neutrosophic data; for example: a number in the interval [2,
5] (we do not know exactly), 47, 52, 67 or 69 (we do not know exactly); - and qualitative (categorical)
neutrosophic data; for example: blue or red (we don’t know exactly), white, black or green or yellow (not
knowing exactly (Florentin Smarandache , 2014 ) [2]. Also, we may have: - univariate neutrosophic data, i.e.
neutro-sophic data that consists of observations on a neutrosophic single attribute; and multivariable
neutrosophic data, i.e. neutrosophic data that consists of observations on two or more attributes. As a
particular cases we mention the bivariate neutrosophic data, and trivariateneutrosophic data. A Neutrosopical
Statistical Number N has the form: 𝑁 = 𝑑 + 𝑖, where d is the determinate (sure) part of N, and iis the
indeterminate (unsure) part of N. For example, 𝑎 = 5 + 𝑖, where 𝑖∈ [0, 0.4],is equivalent to 𝑎∈ [5, 5.4], so
for sure 𝑎 ≥ 5 (meaning that the determinate part of a is 5), while the indeterminate part 𝑖∈ [0,0.4] means the
possibility for number “a” to be a little bigger than 5. While the Classical Statistics deals with determinate
data and determinate inference methods only, the Neutrosophic Statistics deals with indeterminate data, i.e.
data that has some degree of indeterminacy (unclear, vague, partially unknown, contradictory, incomplete,
etc.), and indeterminate inference methods that contain degrees of indeterminacy as well (for example, instead
of crisparguments and values for the probability distributions, charts, diagrams, algorithms, functions etc.
Neutrosophic Numbers of the form N = a+bI have been defined by W.B. Vasantha Kandasamy and F.
Smarandache in 2003, and theywere interpreted as "a" is the determinate part of the number N, and "bI"as
the ndeterminate. In Imprecise Probability, the probability of an event is a subset T in [0,1], not a number
p in [0, 1], what’s left is supposed to be the opposite, subset F (also from the unit interval [0, 1]); there is no
indeterminate subset I in imprecise probability ( F. Smarandache, 2013)[3] .The function that models the
Neutrosophic Probability of a random variable x is called Neutrosophic distribution: NP(x) = ( T(x), I(x),
F(x) ), where T(x) represents the probability that value x occurs, F(x) represents the probability that value x
does not occur, and I(x) represents the indeterminate / unknown probability of value x. It could be deduced
that the Neutrosophic idea is continuous within the interval while the crisp idea is discrete. And so, combining
the cases we have as required and indicated: NP(x) = (T(x), I(x), F(x)). A true neutrosophic number contains
the indeterminacy I with a non-zero coefficient. According to M. Mahmud etal (2020) [7], the generalization
of the Fuzzy set and Intuitionistic Fuzzy set concept is called as neutrosophic set. This is a powerful general
01
Assessing Students Performance Using Neutrosophic Tool
formal framework. The components in neutrosophic set has a degree of truth (T), indeterminacy (I) and falsity
(F).The value of this components are between [0,1], respectively. A neutrosphic set has a general formal
framework for analysing uncertainty in data set or undetermined information. Not only uncertainty,
neutrosophic set can also analyse large information sets or big data sets as well. Single Valued Neutrosophioc
sets (SVNs) was introduce to be used expediently to deal with real problems and it is appropriate in solving
data mining problem and make a decision for the problem. In their paper, titled “ Student engagement and
attitude in mathematics achievement using single valued neutrosophic set “, Single valued neutrosophic set
(SVNs) was proposed to measuring factors impact on student engagement and attitude in mathematics
achievement based on Trends in International Mathematics and Science Study TIMSS 2015 for ASEAN
countries. Although the neutrosophic statistics has been defined since 1996, and published in the 1998 book
Neutrosophy/ Neutrosophic Probability, Set, and Logic, it has not been developed since now. A similar fate
had the neutrosophic probability that, except a few sporadic articles published in the meantime, it was barely
developed in the 2013 book “Introduction to Neutrosophic Measure, Neutrosophic Integral, and
Neutrosophic Probability”. Neutrosophic Statistics is an extension of the classical statistics,and one deals with
set values instead of crisp values. Neutrosophic Statistics refers to a set of data, such that the data or a part
of it are indeterminate in some degree, and to methods used to analyze the data. In Classical Statistics all data
are determined; this is the distinction between neutrosophic statistics and classical statistics.
Tables 1 - 5 below show the ( percentage ) performance of some sets of six classes of science students in a
particular high school in selected five core subjects for the sciences.
Table 1. shows the percentage performance of some sets of six classes of science students in a particular high school
in the core subjects: English.
Class
Students
score range
JS1
JS2
JS3
SS1
SS2
SS3
39-62
44-61
56–64
54-60
50-63
37-73
Table 2. shows the percentage performance of some sets of six classes of science students in a particular high school
in the core subjects: mathematics.
Class
Students
score range
JS1
JS2
JS3
SS1
SS2
SS3
54-66
63-67
60-72
58-67
68-76
47-94
Table 3. shows the percentage performance of some sets of six classes of science students in a particular high school
in the core subjects: physics.
Class
Students
score range
JS1
JS2
JS3
SS1
SS2
SS3
34-50
44-60
53-67
62-73
44–68
37-76
Table 4. shows the percentage performance of some sets of six classes of science students in a particular high school
in the core subjects: chemistry.
Class
Students
score range
JS1
JS2
JS3
SS1
SS2
SS3
52-67
48-65
45-68
46-68
40–70
36-80
Table 5. shows the percentage performance of some sets of six classes of science students in a particular high school
in the core subjects: biology.
Class
Students
score range
JS1
JS2
JS3
SS1
SS2
SS3
56-68
48-72
55-67
54-76
45–70
37-92
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Adebisi and Broumi | Neutrosophic Opt. Int. Syst. 2 (2024) 7-18
4 | Neutrosophic Frequency Distribution
A neutrosophic frequency distribution is a table displaying the categories, frequencies, and relative frequencies
with some indeterminacies. Most often, indeterminacies occur due to imprecise, incomplete, or unknown data
related to frequency. As a consequence, relative frequency becomes imprecise, incomplete, or unknown too.
The frequencies are not crisp numbers as in classical statistics, but between some limits. In real life, we cannot
always compute or provide exact values for the statistical characteristics, but we need to approximate them.
This is one way of passing from classical to neutrosophic statistics.
An example of the neutrosophic frequency distribution concerning the range of scores for five core subjects
for science students in a certain high school is done subject by subject as follows using Tables 6–10:
Table 6. shows the neutrosophic frequency distribution and the neutrosophic relative frequency distribution
concerning the range of scores for the science students in a certain high school in the core subject: english.
CLASSES
Neutrosophic frequency
Neutrosophic relative
frequency
JSS1
JSS2
JSS3
SS1
SS2
[39 , 62]
[44 , 61]
[56 , 64]
[54 , 60]
[50 , 63]
[ 0.102, 0.221]
[0.115, 0.218]
[0.146, 0.229]
[0.141, 0.214]
[0.131, 0.225]
SS3
TOTAL : JSS1 – SS3
[37 , 73]
[280 , 383]
[0.097, 0.261]
[ 0.731, 1.368]
From here , the minimum neutrosophic frequency for the English classes of scores could be calculated as
follows :
𝑀𝑖𝑛nf(e) = 39 + 44 + 56 +54 +50 +37 = 280 and 𝑀𝑎𝑥nf(e) = 62 + 61 + 64 +60 + 63 + 73 = 383
Also, for the neutrosophic relative frequency, we have as follows:
The 𝑀𝑖𝑛nf(e) and 𝑀𝑎𝑥nf(e) [39 , 62] ÷ [280 , 383] = [0.102, 0.221]
Table 7. shows the neutrosophic frequency distribution and the neutrosophic relative frequency distribution
concerning the range of scores for the science students in a certain high school in the core subject: mathematics.
CLASSES
Neutrosophic frequency
Neutrosophic relative
frequency
JSS1
JSS2
[54 , 66]
[63 , 67]
[ 0.122, 0.189]
[0.142, 0.191]
JSS3
SS1
SS2
SS3
TOTAL : JSS1 – SS3
[60 , 72]
[58 , 67]
[68 , 76]
[47, 94]
[350 , 442]
[0.136, 0.206]
[0.131, 0.191]
[0.154, 0.217]
[0.106, 0.266]
[0.791, 1.260]
For the JSS1 class , we have the calculations as follows:
𝑀𝑖𝑛nf(e) = 54 + 63 + 60 +58 +68 +47 = 350 and 𝑀𝑎𝑥nf(e) = 66 + 67 + 72 +67 +76 + 94 = 442
Also, for the neutrosophic relative frequency, we have as follows:
The 𝑀𝑖𝑛nf(e) and 𝑀𝑎𝑥nf(e) = [54 , 66] ÷ [350 , 442] = [ 0.122, 0.189]
01
Assessing Students Performance Using Neutrosophic Tool
Other calculations are thus obtained analogously and recorded in the respective cells of the tables.
In order to make our calculations easier, we quickly give the approximate total neutrosophic relative
frequencies as recorded in the tables.
Table 8. shows the neutrosophic frequency distribution and the neutrosophic relative frequency distribution
concerning the range of scores for the science students in a certain high school in the core subject: physics.
CLASSES
Neutrosophic frequency
Neutrosophic relative frequency
JSS1
[34 , 50]
[44 , 60]
[53 , 67]
[62 , 73]
[44 , 68]
[37 , 76]
[274 , 394]
[0.086, 0.183]
[0.117, 0.219]
[0.135, 0.245]
[0.157, 0.266]
[0.112, 0.248]
[0.094, 0.277]
[0.701, 1.438]
JSS2
JSS3
SS1
SS2
SS3
TOTAL : JSS1 – SS3
Table 9. shows the neutrosophic frequency distribution and the neutrosophic relative frequency distribution
concerning the range of scores for the science students in a certain high school in the core subject: chemistry.
CLASSES
Neutrosophic frequency
Neutrosophic relative
frequency
JSS1
JSS2
JSS3
SS1
SS2
SS3
TOTAL : JSS1 – SS3
[52 , 67]
[48 , 65]
[45 , 68]
[46 , 68]
[40 , 70]
[36 , 80]
[267 , 418]
[0.124 . 0. 251]
[0.115 . 0.244]
[0. 108. 0. 255]
[0.110 . 0. 255]
[0.096 . 0. 262]
[0. 086. 0. 300]
[0.639 .1.567]
Table 10. shows the neutrosophic frequency distribution and the neutrosophic relative frequency distribution
concerning the range of scores for the science students in a certain high school in the core subject: biology.
CLASSES
Neutrosophic frequency
JSS1
JSS2
JSS3
SS1
SS2
SS3
TOTAL : JSS1 – SS3
[56 , 68]
[48 ,72]
[55 , 67]
[54 , 76]
[45 , 70]
[37 , 92]
[295 , 445]
Neutrosophic relative
frequency
[0. 126 . 0. 231]
[0. 108. 0. 244]
[0.124 . 0. 227]
[0.121 . 0. 258]
[0. 101. 0. 237]
[0.083 . 0. 312]
[0.663 .1.509]
5 |Classical Statistical Frequency Distribution
Another idea for solving this problem would be to transform the neutrosophic data into classical data, either
by taking the midpoint of each set or. In classical statistics, all data are determined; this is the distinction
between neutrosophic statistics and classical statistics. While classical statistics refers to randomness only,
neutrosophic statistics refers to both randomness and especially indeterminacy.
While the classical samples provide accurate information, the neutrosophic samples provide vague or
incomplete information. Neutrosophic statistics is an extension of classical statistics. While in classical
01
Adebisi and Broumi | Neutrosophic Opt. Int. Syst. 2 (2024) 7-18
statistics the data is known and formed by crisp numbers, in neutrosophic statistics the data has some
indeterminacy. In neutrosophic statistics, the data may be ambiguous, vague, imprecise, incomplete, or even
unknown. Instead of crisp numbers used in classical statistics, one uses sets (that respectively approximate
these crisp numbers) in neutrosophic statistics.
In Tables 11–15, the neutrosophic form data has been transformed into a crisp format. This is done by finding
the average mean for each subject in the entire set of classes of the students under the assessment.
Table 11. shows the neutrosophic form data transformed into a crisp format for the core subject: English.
Class
Students
score range
Class average
score
Total
JS1
JS2
JS3
SS1
SS2
SS3
39-62
44-61
56–64
54–60
50-63
37-73
50.5
52.5
60.0
57.0
56.5
55.0
331.5
Average = 331.5 ÷ 6 = 55.25
Table 12. shows the neutrosophic form data transformed into a crisp format for the core subject: mathematics.
Class
JS1
JS2
JS3
Students
score range
54-66
63-67
60-72
Class average
score
60
65
66
Total
396
SS1
58-67
SS2
SS3
68-76
47–94
72
70.5
62.5
Average = 396.0 ÷ 6 = 66.00
Table 13. shows the neutrosophic form data transformed into a crisp format for the core subject: physics.
Class
Students score
range
Class average
score
Total
JS1
JS2
JS3
SS1
SS2
SS3
34-50
44-60
53-67
62-73
44-68
37–76
42
52
60
67.5
56
56.5
334
Average = 334.0 ÷ 6 = 55.67
Table 14. shows the neutrosophic form data transformed into the crisp format for the core subject: chemistry.
Class
JS1
JS2
JS3
SS1
SS2
SS3
Students
score range
52-67
48-65
45-68
46- 68
40-70
36-80
Class average
score
59.5
56.5
56.5
57.0
55.0
58.0
Total
342.5
Average = 342.5 ÷ 6 = 57.10
Table 15. shows the neutrosophic form data transformed into a crisp format for the core subject: biology.
Class
Students
score range
Class
average
score
Total
JS1
JS2
JS3
SS1
SS2
SS3
56-68
48-72
55-67
54-76
45-70
37-92
62.0
60.0
61.0
65.0
57.5
64.5
Average = 370.0 ÷ 6 = 61.67
Assessing Students Performance Using Neutrosophic Tool
01
6 |Analysis
If we are to judge the performances by the highest attainable score for each subject , clearly , it could easily
be observed that 1.567 > 1.509 > 1.438 > 1.368 > 1.260, and accordingly, the order of performance from
the highest to the lowest can be in this order Chemistry > Biology > Physics > English > Mathematics
Going by the classical statistical mean average for each subject for the sets of classes, we have the level of
performance represented in the following manner: Mathematics. 1 (66.00 ) > Biology. 2 (61.67) >
Chemistry. 3 (57.10 ) > Physics. 4 (55.67 ) > English. 5 ( 55.25 ).
7 |Interpretation
From the analysis of the event, the following observations emerge: (i) The classical statistics predict that the
students are good in mathematics but very weak in English. (ii). The neutrosophic statistics predict that the
students are poor in mathematics but very good in chemistry. If we go by the prediction of classical statistics,
one may be deceived to believe that the academic performance of this set of students is okay for their chosen
career since their mathematics as a core subject is on good ground. But the prediction of the neutrosophic
statistics is very much in order, at least to be on the server side. This is because if one believes that the students
performance in mathematics is poor, then efforts would be put in place to improve them and give them more
of what it takes to prepare them for further future examinations.
8 |Conclusion
The classical statistical analysis may be faulty and not able to supply the required information necessary for
the expected demand, whereas the neutrosophic statistics help in providing what could be of advantage for
necessary improvements for future expectations.
For future research, the authors are proposing the following:
(i).
Taking care of the other categories of measures of central tendencies involving neutrosophic
statistics is also to be considered for the assessment and evaluation of students academic
performance and other spheres of performance assessment.
(ii).
Putting in more of the Multi-Criteria Decision-Making (MCDM) analysis and subsequently the
evolving algorithms on the subject.
Acknowledgments
The author is grateful to the editorial and reviewers, as well as the correspondent author, who offered
assistance in the form of advice, assessment, and checking during the study period.
Author Contributaion
All authors contributed equally to this work.
Funding
This research has no funding source.
Data Availability
The datasets generated during and/or analyzed during the current study are not publicly available due to the
privacy-preserving nature of the data but are available from the corresponding author upon reasonable
request.
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Adebisi and Broumi | Neutrosophic Opt. Int. Syst. 2 (2024) 7-18
Conflicts of Interest
The authors declare that there is no conflict of interest in the research.
Ethical Approval
This article does not contain any studies with human participants or animals performed by any of the authors.
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