THE EFFECT OF USER-GENERATED CONTENT ON BRAND TRUST AND PURCHASE INTENTION
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Abstract
About This Research Topic
In today's online marketplace, brand-controlled advertisements compete for attention with reviews, ratings, unboxing videos, testimonials, and casual social media posts created by ordinary consumers. Collectively termed user-generated content (UGC), this peer-created material now surrounds almost every purchase decision on platforms such as Instagram, TikTok, Facebook, Jumia, and Konga. For many shoppers in Nigeria, a 30-second unboxing clip from a peer carries more weight than a polished brand commercial.
The persuasive advantage of UGC is often explained by Source Credibility Theory, which holds that trustworthiness and expertise of the source determine message impact. Because UGC creators are perceived as independent and not commercially motivated, their content is judged more credible, fostering brand trust and ultimately purchase intention. Yet response to UGC is not uniform. Consumers high in advertising skepticism, a general tendency to distrust advertising claims, may rely more heavily on UGC than those who still trust brand messaging. This conditional relationship has important implications for firms allocating budgets between review programmes and traditional advertising. This article, prepared for SCHOLARNESTHUB, presents a fully rewritten SEO-optimized analysis of a survey of 300 online shoppers in Enugu State, Nigeria, examining the sequential pathway from UGC exposure to credibility to brand trust to purchase intention, moderated by advertising skepticism. For related research designs, see user-generated content project topics on SCHOLARNESTHUB and consumer behaviour studies.
Main Abstract
User-generated content including reviews, ratings, unboxing videos, testimonials, and social media posts created by ordinary consumers has become central to online shopping, often positioned as more credible than brand-created advertising. However, the mechanism by which UGC exposure translates into brand trust and purchase intention, and the extent to which this depends on underlying skepticism toward traditional advertising, remains underexamined in Nigeria. This study examined the effect of user-generated content on brand trust and purchase intention, focusing on mediating role of perceived UGC credibility and moderating role of advertising skepticism among online shoppers in Enugu State. Anchored on Source Credibility Theory, Elaboration Likelihood Model, and Social Proof Theory, the study adopted descriptive survey design. Structured questionnaire was administered to 300 online shoppers selected through convenience and simple random sampling. Data were analysed using descriptive statistics and inferential statistics including Chi-square, Pearson correlation, and multiple regression with SPSS version 26. Findings revealed UGC exposure has statistically significant positive effect on perceived UGC credibility, credibility has significant positive effect on brand trust, brand trust has significant positive effect on purchase intention, and advertising skepticism significantly and positively moderates the relationship between perceived UGC credibility and brand trust, such that credibility-trust relationship is considerably stronger among consumers with high skepticism toward traditional advertising than among those with low skepticism. The study concluded UGC builds purchase intention primarily through sequential process: exposure fosters credibility, credibility fosters brand trust, trust fosters purchase intention, especially powerful among consumers who distrust conventional advertising. The study recommended firms actively facilitate, curate, and showcase authentic UGC, particularly among audiences with high advertising skepticism, rather than relying solely on brand-controlled messaging.
Chapter One Preview
Background to the Study
The online shopping environment now encompasses far more than brand-controlled product descriptions. Consumers encounter peer reviews and ratings immediately beneath product titles, unboxing videos auto-playing on TikTok and Instagram Reels, and testimonials in comment sections. This shift reflects broader digital empowerment where consumers are both audience and creators, a phenomenon described as electronic word-of-mouth.
Three theories anchor this study. Source Credibility Theory by Hovland, Janis and Kelley posits that trustworthiness and expertise drive persuasion. UGC is perceived as high on trustworthiness because creators lack commercial incentive, even if lower on expertise than brand experts. Elaboration Likelihood Model distinguishes central route processing, where consumers carefully evaluate argument quality, and peripheral route processing, where source cues such as peer status serve as heuristics. UGC often operates peripherally, reducing cognitive effort while still signalling credibility. Social Proof Theory by Cialdini argues individuals look to others' behaviour to guide their own, especially under uncertainty, making visible UGC a powerful social proof cue for purchase.
In Nigeria, UGC is particularly visible due to growth of social commerce. Small businesses on Instagram and TikTok rely almost entirely on customer reviews and unboxing clips rather than paid ads, and large platforms like Jumia foreground ratings and verified purchase badges. Nigerian consumers increasingly reference such content before completing purchases, yet empirical modelling of full sequential pathway from exposure through credibility to trust to intention, conditioned by advertising skepticism, remains limited. For regulatory perspectives on endorsement authenticity, see FTC Endorsement Guides and NIST guidance on digital content credibility. Complementary materials are in digital marketing project topics on SCHOLARNESTHUB.
Statement of the Problem
Nigerian firms face a persistent strategic question: how much emphasis to place on facilitating and showcasing user-generated content relative to investing in traditional brand-created advertising. Many firms pursue both simultaneously, encouraging customer reviews while running conventional campaigns, without clear evidence on specific psychological mechanism through which UGC builds purchase intention, or on which consumer segments are most responsive to UGC relative to brand advertising. Existing literature on UGC and eWOM is dominated by developed market studies and rarely models full sequential pathway from exposure through perceived credibility to brand trust and purchase intention within single integrated framework, and even rarer examines how pathway is conditioned by advertising skepticism. This creates gap between intuitive importance placed on UGC and empirical evidence to guide how and for which audiences UGC investment is most effective. This study addresses gap by examining effect among online shoppers in Enugu State, Nigeria.
Aim and Objectives of the Study
The aim of this study is to examine the effect of user-generated content on brand trust and purchase intention among online shoppers in Enugu State, Nigeria.
· To examine the effect of user-generated content exposure on perceived UGC credibility;
· To assess the effect of perceived UGC credibility on brand trust;
· To determine the effect of brand trust on purchase intention;
· To evaluate the moderating effect of advertising skepticism on the relationship between perceived UGC credibility and brand trust;
· To determine the combined predictive effect of UGC exposure, perceived credibility, brand trust, and advertising skepticism on purchase intention.
Research Questions
1. What is the effect of user-generated content exposure on perceived UGC credibility?
2. What is the effect of perceived UGC credibility on brand trust?
3. What is the effect of brand trust on purchase intention?
4. What is the moderating effect of advertising skepticism on the relationship between perceived UGC credibility and brand trust?
5. What is the combined predictive effect of UGC exposure, perceived credibility, brand trust, and advertising skepticism on purchase intention?
Research Hypotheses
H01: User-generated content exposure has no significant effect on perceived UGC credibility.
H02: Perceived UGC credibility has no significant effect on brand trust.
H03: Brand trust has no significant effect on purchase intention.
H04: Advertising skepticism has no significant moderating effect on the relationship between perceived UGC credibility and brand trust.
Significance of the Study
To marketing practitioners, findings clarify mechanism through which UGC builds purchase intention, informing allocation between UGC facilitation and traditional advertising, highlighting high-skepticism segments as most responsive to UGC strategies. To e-commerce and social commerce platforms, evidence informs design of review, rating, and testimonial features that maximize credibility, such as verified purchase tags and authentic video formats. To consumers, study offers insight into how purchase decisions are shaped by peer content, enabling more critical evaluation. Academically, study extends Source Credibility Theory, Elaboration Likelihood Model, and Social Proof Theory into integrated empirical model within under-researched emerging market context, showing conditions where UGC's persuasive advantage over brand advertising is strongest. Related theoretical applications are discussed in brand management project topics on SCHOLARNESTHUB.
Scope of the Study
Content scope covers UGC exposure, perceived UGC credibility, advertising skepticism, brand trust, and purchase intention. Geographical scope limited to online shoppers resident in Enugu State, Nigeria, who have encountered UGC including reviews, testimonials, unboxing videos, and social media posts while shopping online. Study covers consumer attitudes and reported experiences within period 2023-2026, using cross-sectional survey of 300 respondents via convenience and simple random sampling.
Limitations of the Study
Geographical scope limited to Enugu State due to time and financial constraints, limiting generalizability to other regions with different levels of social media and UGC engagement. Reliance on self-reported survey data regarding attitudes and intentions is subject to social desirability bias and may not perfectly predict actual purchase behaviour. Cross-sectional design captures attitudes at single point and does not account for cumulative effect of exposure to specific UGC over time. Mitigated through careful questionnaire design, assurance of respondent anonymity, and use of statistically representative sampling.
Operational Definition of Terms
User-Generated Content (UGC): Content such as reviews, ratings, testimonials, unboxing videos, and social media posts created and shared by ordinary consumers rather than brands, often perceived as more authentic due to peer origin.
Perceived UGC Credibility: Degree to which consumer judges user-generated content to be trustworthy, honest, unbiased, and reflective of genuine experience.
Advertising Skepticism: Consumer's general tendency to distrust or discount claims made in brand-created advertising, measured by Obermiller and Spangenberg scale, leading to greater reliance on peer sources.
Brand Trust: Confidence a consumer places in a brand's reliability, honesty, and ability to deliver on promises, built through consistent performance and credible endorsements.
Purchase Intention: Consumer's stated likelihood or willingness to buy a product or service, commonly used predictor of actual purchase behaviour in marketing research.
Short Conclusion
The study demonstrates UGC builds purchase intention primarily through sequential credibility-trust pathway. Exposure fosters perceived credibility, credibility fosters brand trust, trust fosters purchase intention. This process is especially powerful among growing segment of consumers who distrust conventional brand advertising, where advertising skepticism positively moderates credibility-trust link. For firms in Nigeria, implication is clear: actively facilitate, curate, and showcase authentic UGC, particularly video testimonials and verified reviews, among audiences with high skepticism, rather than relying solely on brand-controlled messaging. Strategies include incentivizing reviews without scripting them, highlighting diverse user voices, and integrating UGC into product pages and social feeds. Future research should explore longitudinal effects and category differences. Implementation guides are available in marketing project resources on SCHOLARNESTHUB.
Frequently Asked Questions
Q: What is user-generated content in online shopping?
A: UGC includes reviews, star ratings, unboxing videos, testimonials, and social posts created by ordinary consumers, not brands, often seen on Jumia, Instagram, TikTok, and Facebook.
Q: How does UGC affect brand trust?
A: Perceived credibility of UGC increases brand trust: when consumers believe peer reviews are honest and unbiased, they transfer that trust to the brand itself.
Q: Does UGC directly increase purchase intention?
A: Indirectly. Study of 300 shoppers in Enugu found sequential path: UGC exposure increases credibility, credibility increases brand trust, trust increases purchase intention.
Q: What is advertising skepticism and why does it matter?
A: General tendency to distrust brand advertising. Consumers high in skepticism rely more heavily on UGC; credibility-trust relationship is stronger for them.
Q: Which theories explain UGC influence?
A: Source Credibility Theory explains trustworthiness advantage, Elaboration Likelihood Model explains peripheral cue processing, Social Proof Theory explains influence of peer behaviour.
Q: What type of UGC is most effective in Nigeria?
A: Authentic video unboxings, detailed reviews with photos, and verified purchase testimonials were found particularly credible among Nigerian online shoppers.
Q: How was this research conducted?
A: Descriptive survey of 300 online shoppers in Enugu State via convenience and simple random sampling, structured questionnaire, analysis with Chi-square, Pearson correlation, multiple regression in SPSS 26.
Q: Should brands stop traditional advertising and use only UGC?
A: No. Study recommends balancing both but prioritizing UGC curation and display for high-skepticism audiences, while maintaining brand advertising for awareness.
Q: How can firms encourage authentic UGC?
A: Facilitate easy review submission, avoid over-scripting, showcase diverse customer voices, use verified purchase badges, and obtain consent to reshare customer videos.
Q: Is UGC influence same across all product categories?
A: Influence varies; high-risk or experience products like cosmetics, fashion, and electronics show stronger UGC effects than low-risk commodities.
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