Private tutoring costs more per hour than a group class, and the pitch for it is intuitive: all the attention is yours, the pace is yours, nothing is wasted on someone else's questions. People in Cairo pay a large premium for that reasoning, and nobody asks them to justify it because it sounds obviously right.
It is partly right. The size of the advantage is smaller than the price gap implies, and the two things that matter more than the group-or-private decision are both cheaper to check. This is what the evidence says, where it does not apply to you, and the three questions that are worth more than the format.
What the research actually measures
There is a real evidence base here, and it is worth being clear up front about what it covers: it is school-age tuition, not adult professional training. We will come back to that limit, because it matters. But it is the only large body of experimental work on this question, and its findings are more useful than the guesswork that usually fills the gap.
The Education Endowment Foundation, which synthesises school effectiveness research, puts it in its guide to effective tutoring like this: where tuition is high quality and aligned to classroom teaching, pupils can make up to five months additional progress with one to one tuition and up to four months additional progress with small group tuition.
Five against four. That is the whole gap, and it is the number the premium is being charged for. One to one is better. It is better by about a month of progress, and the EEF notes plainly that one to one tuition is relatively expensive while small group tuition is cheaper and nearly as effective.
Group size matters more than the group-or-private question
The more useful finding is not about the binary at all. The EEF defines small group tuition as one teacher or tutor working with two to five learners, and then says the thing worth remembering: the smaller the group the better, and once group size increases above six or seven there is a noticeable reduction in effectiveness.
So the real variable is continuous, not binary. A group of three and a group of twelve are not the same product with a different line on a price list, and the second one is outside the range the evidence supports. The EEF puts it directly: groups of three are likely to maintain high impacts with good value for money.
This reframes the question you should be asking a provider in Cairo. Not "do you offer private sessions", which is a pricing question. But "how many people will be in the room", which is the question the evidence says predicts the outcome. Most providers will answer the first eagerly and the second vaguely, and the vagueness is the finding.
The economists looked at it too, and found something sharper
The largest experimental review of tutoring is a meta-analysis of 96 randomised controlled trials by Andre Nickow, Philip Oreopoulos and Vincent Quan, published as NBER working paper 27476 in July 2020. Its headline is that tutoring works, with an overall pooled effect size of 0.37 standard deviations, which is large for an education intervention.
On the question at hand, its conclusion is more deflating to the private-tuition premium than the EEF's. For teacher and paraprofessional tutoring, it reports that one-on-one tutoring showed the largest effect sizes, with ratios above one-to-one statistically similar. Statistically similar means the difference was not reliably distinguishable from zero.
And it found two things that did matter more. The first is who teaches: effects were strongest for programmes using teachers and trained paraprofessionals, and weakest for volunteer and parent tutoring. The second is frequency, and here the finding is blunt. Effect sizes increase with the number of sessions per week, and there is little evidence of once-weekly tutoring sessions generating large effect sizes.
The once-a-week problem
That last sentence should change how you shop, because once a week is the default format for adult courses in Cairo. Evening and weekend schedules are built around it, ours included, for the obvious reason that people have jobs.
We are not going to pretend that finding does not apply to us. What we would say is that the evidence points at contact frequency rather than at timetable slots, and the gap can be closed by what happens between sessions: structured work with a deadline, something marked, a response you actually read. A once-weekly course with nothing in between is the format the research is least optimistic about. A once-weekly course with real work attached is a different thing, and when you are comparing options that is the distinction to probe. The EEF's own figure for what works is frequent sessions, around three times a week, lasting up to an hour, over six to twelve weeks.
If you want to test whether a provider does this rather than take their word, a trial class is the cheapest test available and it shows you the room size at the same time.
What private tutoring is genuinely better at
None of the above says private tuition is a bad buy. It says the reason to buy it is not the one usually given. Four situations where it is the right call:
- You are starting from an unusual position. If you already run campaigns and need help with attribution specifically, a cohort syllabus will spend most of its time somewhere you do not need.
- Your schedule genuinely cannot hold a fixed slot. An irregular shift pattern beats a cohort timetable, and a half-attended group course is worse than a private one.
- You need a narrow outcome by a date. One platform, one certification, one interview. Narrow and urgent is where private tuition earns its premium.
- You will not speak up in a group. This is a real factor and people are embarrassed to name it. If you will sit silent for ten weeks, the group's advantage disappears.
And the mirror image, where the group is better on the merits rather than on price: when you benefit from hearing other people's mistakes, when the work is collaborative, and when you want the contacts. For marketing specifically, a cohort of people working on different businesses is itself part of the curriculum, which is not a claim the tutoring literature measures either way.
The three questions worth more than the format
If you take one thing from the evidence, let it be that you are probably optimising the wrong variable. Ask these instead, in this order.
- Who is teaching, and are they currently doing the work? The strongest moderator in the meta-analysis was tutor type. For marketing the analogue is whether the person in front of you still runs accounts or stopped three years ago.
- How many people are in the room, as a number? Not a range, not typically. Above six or seven is where the evidence says effectiveness drops noticeably.
- What happens between sessions? Frequency is the second moderator, and work with feedback is how a weekly format compensates for it.
Those three predict more about your outcome than the private-or-group decision does, and all three are answerable in one phone call. The wider version of this checklist is in how to judge a diploma before you pay for it, and if you are weighing formats rather than providers, the evening and weekend comparison covers the scheduling side.
The honest limits, and the part that counts against us
Three things, and the first is the big one.
All of the evidence above is from school-age pupils, most of it on reading and mathematics in primary grades. Adults learning a professional skill differ in motivation, in prior knowledge, and in what they are even trying to get. Nobody has run 96 randomised trials on adult marketing courses in Cairo, and if a provider quotes you a precise figure for how much faster you will learn privately, ask where it came from. We are using school research because it is the best available, not because it transfers cleanly, and anyone who skips that caveat is overselling.
Second, "up to five months" is a ceiling and not an expectation. The EEF's figures assume tuition that is high quality and aligned with the main teaching. Badly delivered private tuition is not four months behind the group, it is worth nothing, and the format cannot rescue it.
Third, we sell group courses, so read the argument above with that in mind. The check on it is that we have told you the conditions under which private tuition is the better buy, and that the research we are citing is the research that is least flattering to our own weekly format. If you are not sure you want to pay anyone yet, that is a legitimate position and Khaled Badr makes the case for it directly in how to learn marketing without courses, and what it costs. Working through that first and arriving at a course later is a reasonable order, and it is cheaper than the alternative.