Criterion A: Introduction
6 marksConnect a focused proposal to a real problem, population and relevant research.
IB Psychology IA Grader
Grade your Psychology IA before you submit. Upload your draft and get a mark for each criterion, comments tied to your sentences, and a list of what to fix first.
5 free gradings a month. No card. Private to you.
- of marks within one grade of the IB's final mark
- 92%
- marking score. ChatGPT 65, Claude 61, Gemini 57
- 74/100
- real IAs and TOK essays tested against the mark the IB gave
- 1,317
- Marks
- 24, from four criteria worth 6 each
- Task
- A research proposal, not a finished experiment
- Length
- 2,200 words at most
- First assessed
- 2027
See the mark, and the sentences behind it
Check the quality of your method, analysis, evaluation, communication and subject-specific reasoning. Find the weakest parts of the draft and see what to change first.
What Marksy checks for each Psychology IA criterion
You get a mark for each IB assessment criterion below. The points under each one are what Marksy looks for in your draft. See the mark bands
Criterion B: Research methodology
6 marksExplain the proposed method, procedure and ethical choices.
Criterion C: Data collection
6 marks- Include the actual proposed tool, such as interview questions or an observation schedule.
Criterion D: Discussion
6 marksConsider possible findings, researcher bias and an additional method.
Where Psychology IAs usually lose marks
Marksy flags these in your draft and links each one to the sentences it is about.
- Only one supporting studyCriterion A looks for two relevant studies, explained and linked to your proposal. One study, or two that are only named, holds the mark down.Criterion A
- A problem with no populationSay who your research is about and how the problem affects them. A general topic like "stress" isn't a focused aim.Criterion A
- Ethics that aren't about your studyListing consent and the right to withdraw isn't enough. Say which ethical issues your design raises and what you would do about each one.Criterion B
- No actual data collection toolInclude the questionnaire, interview questions or observation schedule itself. Without it, criterion C has very little to mark.Criterion C
- Tool choices not explainedExplain why each part of your tool is built the way it is, and what could go wrong when you collect data with it.Criterion C
- A discussion that skips biasDiscuss possible findings, how researcher bias could affect them, and one other method that could help answer your question.Criterion D
Before you upload
- Put your data collection tool in the same PDF as the proposal.
- Name the two studies you build on and say how each one links to your aim.
- Keep any appendix to the tool itself, so the proposal stays inside the word limit.
Your draft stays at the centre
Marksy reads the work you upload, points each comment back to your writing, and puts the most important changes first.
Would the proposed research help us understand the problem affecting your chosen population?Read Psychology IA Planning Guide
- 1
Upload your draft
A PDF of your Psychology IA, finished or not. Every comment stays connected to your own writing.
- 2
Read the comments
Highlights show which passage each comment is about.
- 3
Fix the important parts first
Work down a short list instead of making scattered edits.
- 4
Keep the final say
Accept, adapt or ignore each suggestion. You stay the author.
What students wrote afterwards
From Trustpilot, as written.
marksyib has saved my ib diploma. thanks to it, my IA's were perfect and got the points i needed. really recommended.
Marksy ib allowed me to be able to finish my IAs much before allowing me to be able to relax better. 100% recommended
Your work stays your work
Marksy reads the draft you upload and comments on it. It doesn't rewrite your assessment, and your files are never used to train AI.
Read the safety answers- Private to youOnly you can see your work unless you choose to share it.
- Never used for trainingYour coursework is not added to any AI training data.
- Feedback, not ghostwritingUse the report to improve your own analysis and decisions.
- Delete it whenever you wantYou control the files stored in your account.
Questions before you upload
Still planning? The coursework guide covers the criteria and what to ask yourself while you write. Open the guide
Yes. Marksy grades against the criteria first assessed in 2027: a research proposal with your own data collection tool, marked out of 24.
Yes. Criterion C marks the tool itself, so put it in the PDF you upload. Without it, Marksy can only comment on your description of it.
Not yet. The new IA is first assessed in 2027, so no IB-marked examples exist. Marksy marks against the new criteria only, never the old experiment-report ones.
No. SL and HL students write the same research proposal against the same four criteria.
We tested Marksy on 1,317 real IAs and TOK essays with the mark the IB gave them. 92% of Marksy's marks landed within one grade. On a set with as many weak as strong essays, it scored 74/100 on our marking score, against 65 for ChatGPT, 61 for Claude and 57 for Gemini. Every number, and how we tested, is on the grading accuracy page.
Yes. Marksy checks your Psychology IA against the IB assessment criteria for it and returns marks, comments and fixes instead of generic essay advice.
Yes. Early drafts are useful because the report can show a weak criterion before you spend hours polishing the wrong section. You can revise and grade another version later.
A free account includes 5 gradings a month. You don't need a card.
No. Marksy reads your existing work, explains each comment, and suggests what to revise. The writing and the final decisions stay yours.
Your upload is private to your account, is not used to train AI models, and can be deleted whenever you want.
Stop guessing what to fix in your Psychology IA
Upload the version you have now and find the parts holding it back.