A Parent's Guide to Evidence-Informed SAT & ACT Prep

Parents face an uncomfortable market.

You want to help your child.

Prep companies know that.

That creates perfect conditions for expensive promises.

The safest starting point is:

Preparation can help, but no honest provider can guarantee the same score gain for every student.

What research actually supports

There is evidence that test preparation can improve performance on average.

But effects vary.

Older SAT coaching research often found small average gains, not miraculous ones.

ACT research has produced mixed results across studies.

Broader learning research gives us more confidence in methods such as:

• active retrieval;
• spacing study across time;
• useful feedback;
• repeated practice.

That is where a parent should focus.

Do not buy a number

Be cautious of:

“+200 points guaranteed.”

Ask:

• compared with what?
• in which students?
• independently studied?
• average or selected testimonials?
• refund guarantee or outcome evidence?

Start with the student's problem

Problem: does not know the material

Needs instruction.

Problem: knows material but makes repeated errors

Needs targeted practice and review.

Problem: never studies

Needs accountability/habit support.

Problem: already scores very high

Needs narrow diagnosis, not a giant beginner course.

Different problems justify different products. Our SAT prep options guides walk through several of these options in more depth.

When free may be enough

Free official materials can be enough when your child:

• studies consistently;
• creates a plan;
• reviews mistakes;
• uses realistic tests.

Do not spend money simply to feel that you have “done everything.” Our paid vs free SAT/ACT prep breakdown looks at the evidence for each path.

When paid prep may be reasonable

Paid prep can be useful when it provides:

• structure;
• targeting;
• feedback;
• accountability;
• convenience;
• human tutoring.

The value is not the paywall.

The value is what changes in the student's behavior. If you're comparing multiple providers, our best SAT prep 2026 roundup can help narrow the list.

How parents can help

Ask:

“What did you learn today?”

instead of:

“What score did you get?”

Ask:

“What kind of mistake keeps repeating?”

instead of:

“Why are you still getting these wrong?”

Process questions create better conversations.

Avoid turning prep into surveillance

A teenager who studies only because a parent watches every click may not develop an effective independent routine.

Use accountability without making every session a conflict.

Where MastaPrep fits

MastaPrep is designed for families who want structured self-study without jumping immediately to expensive private tutoring.

It gives the student a clear next step, keeps practice focused on weaker skills, and already uses spaced learning and retrieval practice so previously learned material is not simply forgotten after a lesson is completed.

That can be an attractive middle ground. For a closer look at how MastaPrep compares with a specific AI-driven competitor, see MastaPrep vs Acely.

But if your teenager already has an excellent free routine, you do not need to buy software just because it exists.

Bottom line

The best preparation purchase is not the most expensive.

It is the minimum level of support that solves the actual problem.

That might be:

• $0 official practice;
• a structured platform;
• a class;
• a tutor;
• or a combination.

Research background

• Hao et al. (2025), test-preparation meta-analysis
  https://doi.org/10.3102/00346543251360775
• Carpenter et al. (2022), spacing/retrieval
  https://doi.org/10.1038/s44159-022-00089-1
• Wisniewski et al. (2020), feedback
  https://doi.org/10.3389/fpsyg.2019.03087
• Powers & Rock, SAT coaching research
  https://www.ets.org/research/policy_research_reports/publications/report/1998/ihej.html

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Trademark note: SAT® is a registered trademark of College Board. ACT® is a registered trademark of ACT Education Corp. MastaPrep is not affiliated with, endorsed by, or sponsored by either organization.