Online vs In-Person Tutoring: What the Research Actually Says

A $10 Billion Question

The global online tutoring market reached approximately $10.4 billion in 2024 and is projected to hit $22–24 billion by 2030, growing at a 14.5–15.7% CAGR. The broader private tutoring market stands at $70–125 billion. These aren't just numbers — they represent millions of families making a critical decision about how their children learn.

But does the format actually matter? Is online tutoring as effective as sitting across a table from your tutor? The answer, supported by decades of research, is more nuanced — and more encouraging — than most parents expect.

What the Research Shows: Blended Learning Wins

The US Department of Education's meta-analysis (SRI, 2010) produced a finding that surprised many: blended learning approaches — combining online and face-to-face elements — produced significantly larger effects than purely online or purely face-to-face instruction.

This doesn't mean online is inherently better or worse. It means the most effective approach combines the convenience and flexibility of digital delivery with structured, personal interaction. A skilled online tutor working one-on-one with a student via video call captures the essential elements of both.

An Italian randomised controlled trial by Carlana and La Ferrara (2021) provided more specific data. Online video-call tutoring achieved effect sizes of 0.17–0.22 standard deviations for disadvantaged students. Critically, students receiving 6 hours per week showed double the gains of those receiving 3 hours — the dosage matters more than the delivery format.

The Case for Online Tutoring

For IB and A-Level students specifically, online tutoring offers distinct advantages that go beyond convenience:

• Access to specialist tutors: Geography is no longer a constraint. A student in Dubai can work with an IB examiner based in London. A student in Singapore can access an A-Level Physics specialist from Cambridge
• Scheduling flexibility: International students across multiple time zones can find sessions that work for their schedule — evenings, weekends, and school holidays
• Cost efficiency: Online sessions typically cost 25–40% less than in-person equivalents, making higher-dosage tutoring more accessible
• Digital-native environment: IB students will sit digital exams from the 2030s (with pilots starting in May 2026). Practising academic work in a digital environment builds relevant skills
• Recorded sessions: Many platforms allow session recording for later review — a powerful revision tool
• Reduced commute time: Eliminates travel, turning a 90-minute commitment (30 min travel + 60 min session + return) into a focused 60 minutes

When In-Person Might Be Better

Research suggests that certain situations favour face-to-face tutoring. Younger students (below age 12) generally benefit more from physical presence, where a tutor can read body language, manage attention, and use hands-on materials more effectively.

Students with attention difficulties may also benefit from the structured environment of in-person sessions, where distractions can be minimised. And some subjects — particularly those requiring physical manipulation like laboratory sciences or hands-on art — inherently benefit from shared physical space.

However, for the typical IB or A-Level student (ages 16–19), the evidence suggests that online tutoring is equally effective. Stanford's National Student Support Accelerator concludes that 'emerging evidence indicates that virtual tutoring by a live tutor or through a blended model can also be effective.' The key variable is tutor quality, not delivery format.

The Quality of the Tutor Matters More Than the Format

This is the most important finding in the entire body of research. The Brookings Institution found that 80% of tutoring studies show statistically significant improvement, but teacher-led tutoring produces the largest effect sizes. Whether that teacher is on a screen or across a table is secondary.

The EEF Teaching and Learning Toolkit reports that one-to-one tutoring delivers an average of +5 additional months' progress, with qualified teachers achieving nearly double the effect compared to volunteers or teaching assistants. This finding holds for both online and in-person delivery.

The INSPIRE framework for effective tutoring identifies seven key characteristics: deep subject knowledge, nurturing disposition, Socratic questioning, progressive difficulty scaffolding, indirect guidance, reflective responsiveness, and encouragement. None of these require physical presence — they require a skilled, committed tutor.

The Dosage Effect: More Sessions Beat Better Format

Perhaps the most compelling finding for parents weighing online vs in-person: high-dosage tutoring (3+ sessions per week) is 20 times more effective in mathematics and 15 times more effective in reading than low-dosage alternatives. Programs conducted during school hours show effects roughly twice as large as after-school programs.

This has a clear practical implication. If choosing between one in-person session per week and two or three online sessions per week (made possible by the lower cost and greater scheduling flexibility of online delivery), the research strongly favours the higher-dosage online option.

A 2025–2026 survey found that 71.6% of parents expressed interest in enrolling children in online tutoring, primarily driven by scheduling flexibility. The cost savings of online tutoring — typically 25–40% lower than in-person — make it possible to increase session frequency without increasing total spending.

AI Tutoring: The New Variable

The education landscape is being reshaped by AI. Approximately 68% of major tutoring platforms have integrated adaptive AI tools, and intelligent tutoring systems show an effect size of 0.76 — nearly matching human tutoring. Meanwhile, 89% of students now admit to using ChatGPT for homework.

However, AI tutoring has clear limitations. It cannot build genuine relationships, provide accountability, or navigate the emotional dimensions of learning — academic anxiety, confidence, motivation — that are often the real barriers to progress. Nearly 60% of teens report mental health challenges, and 64% of international school students reported academic anxiety linked to parental pressure.

Human tutors are increasingly differentiated by their capacity for relationship-building, motivation, accountability, and nuanced judgment. The most effective approach combines AI tools for practice and feedback with human tutoring for strategy, motivation, and complex concept development.

Making the Right Choice for Your Child

Here's a practical decision framework based on the research. The bottom line? For the IB and A-Level age group, online tutoring is research-validated and often practically superior due to access to specialist tutors, scheduling flexibility, and cost efficiency. The quality of your tutor, the frequency of sessions, and the use of evidence-based study strategies matter far more than whether you're sitting in the same room.

• Choose online if: Your child is 14+ and self-regulated, you want access to specialist tutors not available locally, scheduling flexibility is important, or you want higher-dosage tutoring at a manageable cost
• Choose in-person if: Your child is under 12 and benefits from physical presence, they have significant attention difficulties, the subject requires hands-on work (lab sciences), or they specifically prefer and perform better with face-to-face interaction
• Consider blended if: Your child would benefit from occasional in-person sessions supplemented by more frequent online sessions, or you want to combine AI practice tools with human tutoring