Grammar Self-Efficacy as a Predictor ofAcademic Writing Performance  
of BAELS Freshmen in Cavite State University:Acorrelational study  
Dr. Jimboy B. Pagalilauan1, Dr. Ruby U. Matienzo2, Dr. Manny A. Romeroso3  
123English professors at Cavite State University in the College of Arts and Sciences under the  
Department of Humanities, Philippines  
Received: 25 November 2025; Accepted: 03 December 2025; Published: 11 December 2025  
ABSTRACT  
This study examined the relationship between grammar self-efficacy and the academic writing performance of  
sixty-eight first year students enrolled in the Bachelor of Arts in English Language Studies program at Cavite  
State University. Many beginning college students often feel unsure about their grammar skills, and this  
uncertainty can influence how well they organize and express their ideas in writing. To better understand this  
connection, the study assessed students across four areas of grammar self-efficacy which include morphology,  
syntax, grammar usage, and editing. Their levels of confidence were then compared with the actual quality of  
their written work based on an analytic rubric. The research used a descriptive correlational design, and data  
were gathered through a researcher made questionnaire.  
The findings showed that students generally possessed a moderate level of grammar self-efficacy. However,  
their academic writing performance still fell within the developing range, suggesting that they continue to  
encounter difficulties in coherence, structure, and consistent grammar use. The results of the Pearson  
correlation revealed a positive and significant relationship between grammar self-efficacy and writing  
performance. Among the areas assessed, syntax and grammar usage showed the strongest connections to the  
quality of student’s essays. These results indicate that students who feel more confident in their grammar skills  
tend to produce clearer and better written work. The study recommends the use of focused grammar  
instruction, regular feedback, and writing support programs to help strengthen students’ confidence and  
improve their academic writing.  
Keywords: grammar self-efficacy, academic writing performance, syntax, grammar usage, editing skills,  
morphology, language competence, freshmen students, writing development, English language studies  
INTRODUCTION  
Writing effectively in academic contexts is an essential skill for students, particularly those studying English  
language. Beyond possessing knowledge of grammar rules, students’ confidence in their own grammar  
abilities referred to as grammar self-efficacy can significantly influence how they approach writing tasks.  
Rooted in Bandura’s social-cognitive theory, self-efficacy reflects a learner’s belief in their capability to  
perform a specific task successfully (Bandura, 1997). In the context of writing, students with higher grammar  
self-efficacy are more likely to take on challenging assignments, revise their work thoroughly, and persist  
despite difficulties.  
Research consistently emphasizes the connection between self-efficacy and writing performance. For instance,  
Yuda, Rasuki, and Fathurrochman (2024) found a strong positive correlation (r = 0.64) between writing self-  
efficacy and descriptive writing ability among Indonesian secondary students, indicating that students who  
believe in their writing competence tend to produce higher-quality work. Conversely, Husna, Ningrum, and  
Rohmah (2021) reported no significant correlation in a similar population, suggesting that self-belief alone  
may not guarantee improved writing outcomes. More recent studies have explored the interaction of self-  
efficacy with other factors, such as metacognition and growth mindset. Prihandoko, Morganna, and Amalia  
(2024) found that self-efficacy mediated the effect of growth mindset on academic writing performance,  
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highlighting that both belief in one’s ability and cognitive regulation are important. Additionally, research  
indicated that teachers’ motivational practices can significantly enhance students’ writing self-efficacy,  
emphasizing the influence of classroom environment and instructional strategies (Fachrunnisa et al., 2025)  
Despite these insights, gaps remain, particularly concerning specific populations. Binnendyk, Patty, and Jamil  
(2024) examined self-efficacy as a predictor of writing performance among Indonesian secondary students and  
found a weak but significant positive correlation (r = 0.297, p = .011). They suggested that other factors such  
as prior writing instruction, motivation, or cognitive skills may moderate writing outcomes, implying that self-  
efficacy alone cannot fully explain performance. Moreover, most studies focus on secondary students or adult  
university learners, leaving first-year BA in English Language Studies (BAELS) undergraduates  
underexplored. These freshmen face unique academic writing challenges, such as adapting to university-level  
discourse and formal writing expectations, making their grammar self-efficacy and its predictive role  
particularly relevant.  
Addressing this gap, the present study investigated grammar self-efficacy as a predictor of academic writing  
performance among BAELS freshmen. Hence, by focusing on this population, the research seeks to determine  
whether confidence in grammar skills translates into tangible writing success. Understanding this relationship  
has practical significance for instructors, curriculum developers, and writing support programs. If grammar  
self-efficacy is a key predictor of writing performance, targeted interventions, such as guided practice,  
scaffolding, and metacognitive strategies could enhance students’ confidence and improve their academic  
writing outcomes.  
Statement of the Problem  
This study aimed to determine the extent to which grammar self-efficacy predicts the academic writing  
performance of Bachelor of Arts in English Language Studies (BAELS) students. In particular, it examined  
whether students’ confidence in their grammatical knowledge and skills is significantly associated with, and  
can serve as a predictor of, their actual writing outcomes.  
In line with this, the study answered the following questions:  
1. What is the level of grammar self-efficacy of BAELS students?  
1.1. Morphology  
1.2. Syntax  
1.3. Grammar usage and conventions  
1.4. Editing and error correction  
2. What is the level of academic writing performance of BAELS students?  
2.1. Content and development  
2.2. Organization and cohesion  
2.3. Grammar and language use  
2.4. Mechanics (punctuation, capitalization, spelling)  
3. Is there a significant relationship between grammar self-efficacy and academic writing performance?  
METHODOLOGY  
Research Design  
This study employed a descriptive-correlational research design to determine whether grammar self-efficacy  
predicts academic writing performance among BAELS freshmen. A correlational approach is appropriate  
because the study seeks to examine the strength and direction of the relationship between two measurable  
variables, students’ grammar self-efficacy (predictor variable) and their academic writing performance  
(criterion variable).  
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This design is commonly used in language education research to establish predictive relationships among  
cognitive, linguistic, and affective variables. It is also consistent with previous studies exploring self-efficacy  
and writing (Binnendyk et al., 2024; Prihandoko et al., 2024), making it a suitable framework for the present  
investigation.  
Participants  
The participants of this study were the sixty-eight (68) BA in English Language Studies (BAELS) freshmen  
enrolled at the College of Arts and Sciences in Cavite State University during the Academic Year 20252026.  
The sample size (n = 68) was determined using the Raosoft sample size calculator with a confidence level of  
95% and a margin error of 0.5%, which yielded the required number of respondents for the target population.  
Students were identified and selected from the official roster using simple random sampling to ensure each  
freshman had an equal chance of inclusion. Participation was voluntary; informed consent was obtained from  
all respondents prior to data collection. To protect confidentiality, all questionnaires and written essays were  
coded with ID numbers and stored securely; only aggregated data are reported. Inclusion criteria were (a)  
current enrollment as a BAELS first-year student in the specified academic term and (b) willingness to  
participate and provide written consent. Students who did not complete the self-efficacy questionnaire or who  
failed to submit the academic essay were excluded from the final analysis.  
Instrumentation  
The researchers utilized survey instruments in this study divided into two:  
Grammar Self-Efficacy Questionnaire  
The primary instrument for measuring the predictor variable was a 20-item Grammar Self-Efficacy Scale,  
developed based on Bandura’s self-efficacy theory and adapted from existing grammar and writing self-  
efficacy tools used in previous studies. The instrument was divided into four dimensions: a. Morphology  
(Items 15): word forms, affixes, root identification, b. Syntax (Items 610): sentence construction, clauses,  
SVA, c. Grammar Usage & Conventions (Items 1115): verb tense, articles, modifiers, d. Editing & Error  
Correction (Items 1620): proofreading, self-correction  
Students rated each statement using a 4-point Likert scale (4 = Strongly Agree; 1 = Strongly Disagree). Higher  
scores indicated stronger grammar self-efficacy. The questionnaire underwent content validation by three  
language experts and achieved a high reliability coefficient (Cronbach’s α ≈ .85–.90), indicating internal  
consistency.  
Academic Writing Performance Rubric  
To measure the dependent variable students’ academic writing performance, the researchers required all  
participants to produce a 300500-word academic essay on a relevant and timely topic. The students’ essays  
were evaluated using a 4-point analytic writing rubric, which allowed the researchers to assess writing in a  
structured and systematic manner. An analytic rubric was chosen because it breaks writing into several  
components, enabling a more precise evaluation of specific strengths and weaknesses rather than relying on a  
single holistic score.  
The rubric consisted of four key criteria, widely recognized in academic writing assessment:  
Content and Development - evaluates the depth, clarity, and support of ideas.  
Organization and Cohesion - assesses the logical flow of ideas, paragraph unity, and effectiveness of  
transitions.  
Grammar and Language Use - measures accuracy and appropriateness of grammatical structures.  
Mechanics - refers to surface-level correctness such as punctuation, spelling, and capitalization.  
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Each criterion was rated using a 4-point scale, aligned with standard writing performance descriptors: 4 -  
Excellent, 3 - Satisfactory, 2 - Developing, and 1 - Needs Improvement. This scale provided enough range to  
distinguish varying levels of performance while ensuring clarity for raters.  
To maintain the integrity and reliability of scoring, two trained raters independently evaluated all essays. This  
procedure minimized individual bias and ensured that scores reflected consistent judgment. Inter-rater  
reliability was reinforced through independent scoring; whenever discrepancies arose between the two raters’  
evaluations, these were resolved either through discussion and consensus or, when needed, by consulting a  
third rater. This process ensured that the final scores were fair, accurate, and grounded in a standardized  
assessment approach.  
RESULTS AND DISCUSSIONS  
Table 1: Profile of the respondents  
Gender  
Frequency  
Percentage  
29.41%  
70.59%  
100%  
Male  
20  
Female  
48  
Total  
68  
Have you taken any advanced grammar or writing courses?  
Frequency  
Percentage  
11.88%  
88.2%  
Yes  
No  
8
60  
68  
Total  
100%  
The table shows the profile of the respondents who participated in this study. Out of the 68 freshmen students  
from the Bachelor of Arts in English Language Studies (BAELS) program at Cavite State University, majority  
were female, with 48 students representing 70.59% of the sample, while male respondents accounted for 20  
students or 29.41%. This indicates that the program’s freshman cohort is predominantly composed of female  
students.  
In terms of prior experience with advanced grammar or writing courses, the table reveals that only a small  
number of respondents, 8 students (11.88%), have taken such courses. The overwhelming majority, 60  
students (88.2%), reported having no previous exposure to advanced grammar or writing. This implies that  
most of the participants may be approaching academic writing tasks with limited formal preparation in  
grammar, which could influence their confidence and ability in producing well-structured written work.  
Furthermore, the profile highlights a largely female population with minimal prior training in advanced  
grammar or writing courses, providing an important context for understanding the relationship between  
grammar self-efficacy and academic writing performance among the respondents.  
Table 2: Grammar Self-Efficacy of the Respondents  
A. Morphology (Word Forms, Affixes, Structure of Words)  
Mean  
2.91  
Interpretation  
Agree  
1
2
3
I can correctly identify root words, prefixes, and suffixes.  
I can determine the correct form of a word when writing.  
3.16  
Agree  
I can change words into their appropriate grammatical forms (ex.,  
adjective to adverb).  
2.94  
Agree  
4
5
I can avoid errors in pluralization and verb inflection.  
2.77  
2.96  
Agree  
Agree  
I feel confident using newly learned word forms in my writing.  
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SUBMEAN  
2.94  
Agree  
B. Syntax (Sentence Structure and Grammar Rules)  
6
I can construct grammatically correct complex sentences.  
I can identify and correct run-on sentences and fragments.  
I can apply subjectverb agreement correctly in writing.  
I can arrange sentence elements (phrases and clauses) logically.  
I can detect incorrect sentence structure when proofreading.  
2.75  
2.79  
2.89  
2.89  
3.05  
2.86  
Agree  
Agree  
Agree  
Agree  
Agree  
Agree  
7
8
9
10  
SUBMEAN  
C. Grammar Usage and Conventions  
11  
12  
13  
14  
15  
I can choose appropriate grammatical structures for academic writing.  
I can use verb tenses consistently throughout a text.  
3.06  
3
Agree  
Agree  
Agree  
Agree  
Agree  
Agree  
I can avoid common grammatical errors such as misplaced modifiers.  
I can correctly use articles (“a,” “an,” “the”) in sentences.  
I am confident in applying grammar rules when revising drafts.  
2.84  
3.21  
2.81  
2.99  
SUBMEAN  
D. Editing and Error Correction  
16  
17  
18  
19  
20  
I can spot grammatical errors in my own writing.  
3.13  
2.81  
3.06  
2.89  
2.81  
2.92  
2.93  
Agree  
Agree  
Agree  
Agree  
Agree  
Agree  
Agree  
I can provide accurate grammatical corrections when peer-editing.  
I can edit a paragraph to improve clarity and correctness.  
I feel confident proofreading for grammar independently.  
I can explain the grammar rules behind the corrections I make.  
SUBMEAN  
OVERALL MEAN  
The table shows the grammar self-efficacy of the respondents across four key domains: morphology, syntax,  
grammar usage and conventions, and editing and error correction. The overall mean of 2.93 indicates a  
moderate level of confidence in their grammatical abilities, suggesting that while students feel somewhat  
capable, there is still room for growth in applying grammar effectively in academic writing.  
In the morphology domain, which deals with word forms, affixes, and structure, the submean of 2.94 shows  
that respondents are moderately confident in identifying root words, prefixes, and suffixes, determining the  
correct forms of words, and using newly learned word forms in their writing. This aligns with studies  
highlighting that morphological awareness supports students’ ability to manipulate language accurately, which  
can contribute positively to writing performance (Zheng & Zhang, 2024).  
Regarding syntax, the respondents’ submean of 2.86 reflects slightly lower confidence in constructing complex  
sentences, correcting run-ons and fragments, and applying subject-verb agreement. Syntax requires a deeper  
understanding of how sentence elements interact, and moderate self-efficacy in this area suggests that some  
students may struggle with producing grammatically sophisticated sentences. Research has shown that strong  
syntactic understanding is crucial for writing clarity and overall academic writing performance (Link, 2022).  
For grammar usage and conventions, the highest submean of 2.99 indicates that students feel comparatively  
more confident in applying grammatical rules such as verb tense consistency, article use, and general grammar  
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conventions in their writing. This supports prior findings that grammar competence and self-efficacy in  
applying grammatical rules are positively correlated with writing outcomes (Belmekki, 2023; Salering &  
Tantiado, 2025).  
In the domain of editing and error correction, the submean of 2.92 shows that students are moderately  
confident in identifying and correcting grammatical errors, both in their own writing and when peer-editing.  
Confidence is slightly lower in peer-editing, suggesting hesitation in applying grammatical knowledge to  
others’ work. Literature suggests that higher self-efficacy in editing enhances students’ willingness to revise  
and improve drafts, leading to better writing performance (Jiang, 2025).  
Moreover, the moderate level of grammar self-efficacy observed in the respondents indicates a foundation of  
confidence that can be further strengthened. Given that self-efficacy influences motivation and task  
engagement, the results suggest that interventions targeting grammar skills particularly in syntax and peer-  
editing, may help improve students’ academic writing performance. This supports the premise of the study that  
grammar self-efficacy can serve as a meaningful predictor of writing outcomes among BAELS freshmen.  
Table 3: Academic Writing Performance of the Respondents  
Criteria  
Mean  
2.0  
Interpretation  
Developing  
Developing  
Developing  
Satisfactory  
Developing  
Content and Development  
Organization and Cohesion  
Grammar and Language Use  
Mechanics (Punctuation, Spelling, Capitalization)  
Overall Mean  
2.49  
2.46  
2.58  
2.38  
The results in Tableꢀ3 show that BAELS freshmen are performing at a developing level in academic writing  
overall (mean = 2.38). Their strongest performance is in Mechanics (mean = 2.58), which means they are  
relatively more comfortable with basics like punctuation, spelling, and capitalization. On the other hand,  
Content and Development (mean = 2.0) is their weakest area, students are having trouble fully developing their  
ideas, supporting them with evidence, or creating depth in their essays. Their Organization and Cohesion  
(2.49) and Grammar & Language Use (2.46) are also in the developing range, suggesting that they struggle not  
just with grammar accuracy, but also with structuring their thoughts logically.  
These patterns make sense when you consider their moderate grammar self-efficacy (from Tableꢀ2). When  
students believe in their grammar ability, they tend to be more willing to revise, self-edit, and apply  
grammatical rules, which can improve technical elements of writing like mechanics. But confidence in  
grammar alone doesn’t guarantee well-developed ideas or strong structure. This aligns with existing research.  
For example, Belmekki (2023) found a significant positive correlation between students’ grammar competence  
and their academic writing performance, suggesting that grammar knowledge plays a clear role in how well  
students write. Meanwhile, studies on writing self-efficacy emphasize that confidence in grammar is only part  
of the story: it is equally important that students can generate ideas and organize them meaningfully. A review  
by Dan Li (2024) argues that self-efficacy in writing involves multiple dimensions, including grammar, usage,  
mechanics, and metacognitive regulation.  
Intervention studies also support this. For instance, a recent project that used self-efficacy-based writing  
instruction showed that when students were given structured feedback, scaffolding, and opportunities to self-  
regulate, both their self-belief and writing quality significantly improved. In another study, self-regulated  
learning (SRL)-based instruction helped students with moderate self-efficacy make strong gains in writing  
skills.  
Taken together, these findings suggest that to help BAELS freshmen write more effectively, going beyond  
grammar drills should be done. They also need structured support in developing ideas, organizing essays, and  
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thinking about their own writing process. Strengthening both their confidence and their thinking as writers  
could lead to more meaningful and better-written work.  
Table 4: Test of Significant Relationship between Grammar Self-efficacy and Writing Performance  
Variables  
Test  
r
p
Interpretation  
Morphology & Academic Writing  
Performance  
Pearson  
Correlation  
.258 .034 Significant  
.329 .006 Significant  
.301 .013 Significant  
.285 .019 Significant  
Syntax & Academic Writing Performance  
Pearson  
Correlation  
Grammar Usage & Conventions & Academic  
Writing Performance  
Pearson  
Correlation  
Editing & Error Correction & Academic  
Writing Performance  
Pearson  
Correlation  
As gleaned from the table, it shows that there is a consistent, positive relationship between self-efficacy  
particularly in grammar and writing, and students’ academic writing performance. Students who feel more  
confident in their grammar skills tend to perform better in academic writing. Although the strength of the  
correlations varies across the four domains, all relationships are positive and statistically significant, which  
means that grammar self-efficacy plays a meaningful role in shaping how well students write. Among the  
domains, syntax shows the strongest correlation (r = 0.329), suggesting that students who feel capable of  
constructing well-formed sentences and applying grammar rules are more likely to produce organized,  
coherent written work. Morphology and editing also show small but significant correlations, indicating that  
confidence in identifying word forms and correcting errors also contributes to writing performance, although to  
a lesser extent. Grammar usage and conventions exhibit a moderate correlation, which highlights the influence  
of correct tense use, article application, and general grammatical accuracy on the overall quality of student  
writing.  
These findings echo what many scholars have emphasized over the years. Bandura’s theory of self-efficacy  
(1997) explains that when students believe they can succeed in a task, they are more motivated, more  
persistent, and generally more successful. This is supported by the work of Pajares and Johnson (1996), who  
found that students with higher confidence in their writing abilities tend to produce clearer and better  
structured essays. Recent studies continue to strengthen this claim, showing that writing performance improves  
when learners trust their own grammatical knowledge. However, scholars such as Bruning et al. (2013) also  
remind us that writing self-efficacy is multidimensional. Confidence in grammar alone cannot guarantee strong  
writing if students struggle with generating ideas, organizing thoughts, or maintaining coherence. Therefore,  
while the results of this study confirm that grammar self-efficacy is an important predictor of writing  
performance, they also suggest the need for holistic instruction that nurtures both specific grammatical skills  
and broader writing abilities.  
CONCLUSION  
The findings of this study reveal that BAELS freshmen generally possess a moderate level of grammar self-  
efficacy across morphology, syntax, grammar usage, and editing skills. While students express confidence in  
applying basic grammatical rules, their self-efficacy is noticeably lower in more complex areas such as  
constructing advanced sentence structures and providing accurate peer-editing. These patterns are reflected in  
their academic writing performance, which remains at a “Developing” level. Although students can express  
their ideas, many struggle with organizing content, applying grammar consistently, and minimizing  
mechanical errors.  
The Pearson r results further strengthen this observation. All grammar self-efficacy domains demonstrated  
positive and significant correlations with academic writing performance, with syntax and grammar usage  
showing the strongest relationships. This indicates that students who feel more capable in grammar tend to  
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perform better in writing tasks, supporting Bandura’s theory and a long line of studies emphasizing the role of  
self-efficacy in academic success.  
These findings carry clear implications for teaching and policy development. From a pedagogical perspective,  
instructors should design targeted interventions that focus on enhancing students’ confidence and mastery in  
complex grammatical areas, such as advanced sentence construction and peer-editing exercises. Integrating  
structured grammar exercises into the curriculum and providing regular feedback can help students translate  
their growing self-efficacy into measurable improvements in academic writing. At the policy level, the results  
underscore the need for institutional support for continuous professional development for teachers, provision  
of teaching resources, and the integration of self-efficacy-enhancing strategies within writing programs.  
Finally, enhancing students’ grammar self-efficacy is not only key to improving writing performance but also  
to fostering lifelong language competence and academic success.  
RECOMMENDATIONS  
Based on the results, several practical recommendations are proposed to help strengthen both grammar self-  
efficacy and academic writing performance among BAELS freshmen:  
1. Integrate Targeted Grammar Instruction in Writing Classes. Since syntax and grammatical accuracy  
show strong links to writing outcomes, instructors may incorporate short, focused grammar lessons within  
writing activities rather than teaching grammar in isolation. Contextualized instruction using students’  
own drafts as examples can help reinforce correct usage.  
2. Provide Regular, Constructive, and Timely Feedback. Students benefit from clear explanations of their  
errors. Feedback that highlights both strengths and areas for improvement can boost confidence and  
deepen grammatical understanding. Guided revision tasks should also be encouraged to help learners  
internalize corrections.  
3. Implement Peer-Editing Activities with Structured Guidelines. Because respondents showed lower  
confidence in peer-editing skills, teachers may offer checklists or editing rubrics to guide the process.  
These tools can help students practice identifying errors, build grammar awareness, and strengthen  
collaborative learning.  
4. Offer Writing Workshops and Remedial Sessions. Considering that most students have not taken  
advanced grammar or writing courses, the department may organize supplemental workshops focusing on  
common writing difficulties such as sentence construction, paragraph development, and mechanics.  
5. Develop Writing Support Programs (ex., Writing Centers, Online Modules). Establishing a writing  
support system can help students seek assistance beyond classroom hours. Online modules, video lessons,  
and sample annotated essays can give additional support to students who need individualized help.  
6. Encourage Self-Regulated Learning Strategies. Students should be trained to set writing goals, monitor  
their progress, and evaluate their drafts independently. Such strategies can enhance not only grammar  
accuracy but also overall writing confidence, as demonstrated by research on writing self-efficacy.  
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