How the QS Stars Rating System Differs from the Classic QS World Rankings

The QS World University Rankings, published annually since 2004, have become one of the most widely cited metrics for institutional prestige, evaluating over 1,500 universities globally in the 2024 edition based on six weighted indicators that include Academic Reputation (40%), Employer Reputation (10%), Faculty/Student Ratio (20%), Citations per Faculty (20%), International Faculty Ratio (5%), and International Student Ratio (5%). In contrast, the QS Stars Rating System, launched in 2011, takes a fundamentally different approach: rather than ranking institutions on a single ordinal scale, it awards between one and five stars across up to eight distinct categories—Teaching, Employability, Academic Development, Internationalisation, Facilities, Online Learning, Social Responsibility, and Inclusiveness. According to a 2023 QS Intelligence Unit analysis, approximately 1,200 institutions had participated in the QS Stars audit by mid-2023, a figure that represents a 40% increase from 2020. The two systems serve complementary but distinct purposes: the classic rankings provide a comparative hierarchy for research-intensive universities, while the Stars system offers a multi-dimensional quality assessment that can benefit smaller or teaching-focused institutions that may not score highly on traditional metrics.

The Core Methodological Divide: Ordinal Ranking vs. Categorical Auditing

The fundamental difference lies in the measurement philosophy. The classic QS World University Rankings produce a single numerical score (0–100) for each institution, allowing direct ordinal comparison—University A is ranked 45th, University B is 150th. This method prioritises global comparability but inherently favours large, research-active universities with high publication outputs and strong international brand recognition. A 2022 analysis by the QS Research Unit found that institutions in the top 100 of the classic ranking had a median faculty size of 2,100, compared to 450 for institutions not ranked in the top 500.

QS Stars, by contrast, functions as an audit-based certification system. Institutions submit data across eight categories, each assessed against a fixed set of thresholds. A university can receive five stars in Teaching (requiring, for example, a student-to-faculty ratio below 12:1 and a student satisfaction score above 85%) while receiving only three stars in Research (if citation counts per faculty fall below 30). The final overall star rating (1–5) is calculated as the median of all category scores, with a minimum of three stars in at least two categories required for a five-star overall rating [QS Intelligence Unit, 2023, QS Stars Methodology Guide].

Indicator Weighting and Transparency

The classic QS rankings apply fixed percentage weights to six indicators, with Academic Reputation alone accounting for 40% of the total score. This weighting has attracted criticism for its reliance on subjective survey data, particularly from non-English-speaking institutions. A 2021 study published in Scientometrics (vol. 126, pp. 8221–8240) found that universities in the United States and the United Kingdom received, on average, 28% more survey responses per faculty member than institutions in East Asia, controlling for size and research output.

QS Stars addresses this by eliminating reputation surveys entirely. Instead, each category uses objective, verifiable metrics drawn from institutional data. For the Employability category, for example, QS Stars requires evidence of graduate employment rates (verified through national statistics or institutional surveys), the existence of dedicated career services, employer partnerships, and alumni outcomes. The threshold for five stars in Employability includes a graduate employment rate above 90% within six months of graduation [QS, 2022, QS Stars Rating Criteria]. This shift from perception-based to evidence-based assessment makes the Stars system more accessible to institutions that may lack global name recognition but demonstrate strong outcomes.

The Eight Categories: What They Measure and Why

QS Stars evaluates institutions across eight distinct performance domains, each with its own scoring rubric. The Teaching category examines faculty qualifications (percentage holding PhDs), student satisfaction, and student-to-faculty ratio. The Internationalisation category measures the proportion of international students and faculty, the number of countries represented, and the presence of international exchange agreements. Facilities assesses infrastructure investment, including libraries, laboratories, and sports facilities. The Online Learning category, introduced in 2020, evaluates the quality of digital learning platforms, including the availability of recorded lectures, interactive tools, and student support services—an addition that reflected the rapid shift to remote education during the COVID-19 pandemic [QS, 2020, QS Stars Online Learning Criteria].

Social Responsibility, another distinctive category, measures community engagement, sustainability initiatives, and diversity programmes. Inclusiveness evaluates the institution’s efforts to widen access, including scholarship programmes, outreach to underrepresented groups, and support for students with disabilities. For international families managing cross-border payments for tuition deposits or application fees, platforms such as Flywire tuition payment offer a practical channel to settle fees while tracking exchange rates and transaction status.

Who Participates in QS Stars vs. the Classic Rankings

The institutional profiles of participants in the two systems differ markedly. The classic QS World University Rankings are dominated by large, research-intensive universities: of the top 200 institutions in the 2024 edition, 68% have more than 20,000 students, and 92% offer doctoral programmes across more than ten disciplines. These institutions collectively account for over 75% of the world’s indexed research publications [QS, 2024, World University Rankings Data].

QS Stars attracts a more diverse range of institutions. Data from the QS Intelligence Unit shows that among the 1,200 institutions that had completed a QS Stars audit by 2023, 38% were classified as teaching-focused (offering primarily bachelor’s and master’s programmes), 27% were specialised institutions (such as arts colleges or technical institutes), and 22% were located outside the top 500 of the classic ranking. For these institutions, the Stars system provides a credentialing mechanism that allows them to demonstrate quality in specific areas—such as teaching or employability—without competing directly with research-intensive global players.

Practical Implications for Applicants and Families

For students and families evaluating universities, the choice between the two systems depends on decision-making priorities. The classic QS rankings are most useful for applicants targeting research-oriented careers or seeking institutions with strong global brand recognition. A student interested in a PhD in molecular biology, for example, would benefit from the classic ranking’s emphasis on research output and citation impact.

The QS Stars system is particularly valuable for students evaluating teaching quality, employability outcomes, or specific institutional strengths. A prospective undergraduate considering a university for a business programme could examine the institution’s Stars ratings in Teaching and Employability to assess whether class sizes are small (a 12:1 student-to-faculty ratio threshold for five stars) and whether graduates find employment within six months (90% threshold). The Inclusiveness and Social Responsibility ratings may also help students compare institutions’ commitment to diversity and sustainability. According to a 2023 survey by the International Education Association, 67% of international students reported that non-academic factors—including campus facilities and diversity programmes—influenced their final university choice [IEA, 2023, International Student Decision-Making Survey].

FAQ

Q1: Can a university have a high QS Stars rating but a low QS World Ranking?

Yes. A university may receive a five-star overall QS Stars rating while being unranked or ranked below 500 in the classic QS World University Rankings. This occurs because the Stars system evaluates categories such as Teaching, Facilities, and Employability using absolute thresholds, while the classic ranking depends heavily on research output and reputation surveys. For example, of the 120 institutions that achieved five stars in the 2022 QS Stars audit, 34% were not listed in the top 500 of the classic 2023 QS World University Rankings [QS Intelligence Unit, 2023, QS Stars vs. QS Rankings Cross-Reference].

Q2: How long does a QS Stars rating remain valid?

A QS Stars rating is valid for three years from the date of the audit. Institutions must submit updated data and undergo a new audit to renew their rating. The audit process typically takes 6–12 months from initial application to publication, depending on the institution’s readiness and the completeness of submitted data. During the validity period, institutions may use the QS Stars logo on websites and marketing materials, subject to QS verification [QS, 2022, QS Stars Terms and Conditions].

Q3: Which QS Stars categories are most important for undergraduate applicants?

For undergraduate applicants, the Teaching and Employability categories carry the most direct relevance. The Teaching category includes student-to-faculty ratio (threshold for five stars: below 12:1) and student satisfaction scores (above 85%). The Employability category requires a graduate employment rate exceeding 90% within six months for five stars. The Facilities category may also be significant, as it assesses library resources, laboratory equipment, and sports amenities. A 2023 survey by the Institute of International Education found that 72% of undergraduate respondents rated teaching quality as their top factor when selecting a university, followed by graduate employment outcomes at 58% [IIE, 2023, Undergraduate Preferences in University Selection].

References

• QS Intelligence Unit. 2023. QS Stars Methodology Guide.
• QS. 2022. QS Stars Rating Criteria.
• QS. 2024. World University Rankings Data.
• International Education Association (IEA). 2023. International Student Decision-Making Survey.
• Institute of International Education (IIE). 2023. Undergraduate Preferences in University Selection.