How to Write Chapter Four of a Final Year Project in Nigeria: Data Presentation, Analysis and Interpretation (2026)

Chapter Four is where a final year project stops being reading and starts being evidence. Most Nigerian departments title it Data Presentation, Analysis and Interpretation, and most students write it the same wrong way: they collect the questionnaires, run everything they can think of, paste the output in, and then try to build sentences around whatever appeared.

The chapter is written one table at a time, in the order of your research questions, and nothing that answers no research question belongs in it. What follows is that procedure in eight steps, with the actual tables and sentences you will need.

One thing outranks everything below: your department’s project guidelines. Departments at UNILAG, Ibadan, ABU Zaria, OAU and Nsukka differ on table numbering, on whether hypotheses are tested inside Chapter Four or Chapter Five, and on whether a decision rule must be stated in words. Where this guide and your handout disagree, follow the handout.

Step 1: Rebuild the chapter outline from your research questions

Output: a numbered sub-section list matching your Chapter One, written before you open any data.

1. Open Chapter One and copy out the research questions in order, exactly as worded.
2. Give each one its own sub-heading in Chapter Four, in the same order.
3. Beside each, note the single table that will answer it.
4. Add one sub-section per hypothesis, after the research questions.
5. Delete every piece of output not assigned to a heading.

Four research questions means four tables plus one per hypothesis. If you have eleven tables, several of them are answering nothing, and a panel member will ask why you ran them. The alignment between what you asked and what you answer is the thing being examined — the same alignment described in the guide to writing Chapter One.

Step 2: Fix the return rate, and never change the number again

Output: three counts, and one of them used everywhere afterwards.

Chapter Four opens by saying how many questionnaires went out, how many came back, and how many were usable. Write it once, plainly:

“A total of 250 copies of the questionnaire were administered to respondents in the five departments studied. Of these, 236 copies were retrieved and 231 were properly completed and used for the analysis, giving a return rate of 92.4%. The analysis in this chapter is therefore based on 231 respondents.”

That last number is the one that appears in every table note, in the abstract, and in any percentage you compute. A respondent count that reads 231 in one table and 236 in another is the single most commonly caught defect in Nigerian project defences, and it costs you credibility on every other figure in the chapter. How you arrived at those counts belongs in Chapter Three, not here.

Step 3: Present the bio-data as a frequency and percentage table

Output: one table covering the respondent profile, and one short paragraph under it.

The demographic section is descriptive only. It uses frequency and simple percentage, nothing else.

Table 1: Distribution of Respondents by Demographic Characteristics

Source: Field Survey, 2026. n = 231.

Two rules. Every block of percentages sums to 100 against your N, so check the arithmetic before the panel does. And keep the paragraph underneath short — the bio-data is context, not a finding, and a page of prose about how many respondents were male tells the reader nothing they cannot see.

Step 4: Build the mean table for each research question

Output: one table per research question, with mean, standard deviation and a decision column.

Most Nigerian undergraduate instruments use a four-point scale: Strongly Agree 4, Agree 3, Disagree 2, Strongly Disagree 1. The criterion mean is 2.50, because the four scale points average to 2.50 — an item at or above it is Accepted, below it is Rejected. If your department uses a five-point scale, the criterion is 3.00 by the same arithmetic. State whichever you used, and where it came from, in the note under the table.

Table 2: Effect of Power Supply on Student Study Hours

Source: Field Survey, 2026. n = 231. Criterion mean = 2.50.

Carry the standard deviation next to every mean. A mean of 3.42 with an SD of 0.71 describes a group that broadly agrees; the same mean with an SD of 1.40 describes a group that is split, and a panel may well ask which one you have. Item 4 above is reverse-worded on purpose — note that it was rejected, which is consistent with the other three rather than contradicting them.

Step 5: Write the interpretation paragraph, in three moves

Output: one paragraph under each table that does not simply retype the table.

If your prose reads “from Table 2 above, item 1 has a mean of 3.42, item 2 has a mean of 3.18, item 3 has a mean of 2.87”, you have transcribed the table and said nothing. Every paragraph needs three moves:

1. State the finding. The highest and lowest items and the overall picture, in one sentence.
2. Say what it means in your setting — your department, your campus, your respondents.
3. Connect it to Chapter Two. One named study your finding agrees or disagrees with.

Worked paragraph:

“Table 2 shows a grand mean of 2.85 against a criterion mean of 2.50, indicating that respondents generally agree that power supply affects their study hours. The strongest agreement was on the reduction of evening study hours (M = 3.42, SD = 0.71), while the claim that power supply has no effect was rejected (M = 1.94, SD = 0.88). This suggests that the constraint is felt most acutely at night, which is consistent with the reliance on generators and power banks reported in item 2, and with the departmental reading room serving as the fallback rather than the first choice. Adeyemi (2023) reported a similar pattern among undergraduates in a comparable state university, although the reliance on alternative power sources in the present study is higher.”

The third move is the one almost always missing, and its absence is why a supervisor writes “no discussion” in the margin. The studies you compare against come from your literature review, and every author you name here must appear in your reference list in the style your department requires — the conventions are in the guide to referencing a Nigerian university project in APA.

Step 6: Test each hypothesis and write the decision sentence

Output: one sub-section per hypothesis, each ending in an explicit decision.

Hypothesis sub-sections have a fixed shape, and panels test it because it is short enough to check line by line. State the hypothesis, present the table, state the decision.

Worked example:

Ho₁: There is no significant relationship between power supply and student study hours.

“The chi-square test returned a calculated value of 18.42 with 4 degrees of freedom at the 0.05 level of significance, against a critical table value of 9.488. Since the calculated value (18.42) is greater than the critical value (9.488), the null hypothesis is rejected. There is therefore a significant relationship between power supply and student study hours.”

Many Nigerian departments still teach the calculated-versus-critical-value comparison, while statistical software reports a p-value instead. The two agree: a calculated value above the critical value corresponds to a p-value below 0.05. If your output gives you p, the equivalent sentence is “χ²(4, N = 231) = 18.42, p = .001; the null hypothesis is rejected.” Use whichever form your department teaches, and use only one of them throughout the chapter.

Two wordings a panel will correct on the spot. You reject or fail to reject a null hypothesis — you never accept it and you never prove it. And a significant result is not automatically a large or important one, so the sentence after the decision should say what the relationship means in practice.

Step 7: Report the numbers the way the style requires

Output: one pass over every figure in the chapter.

Nigerian departments overwhelmingly use APA, and its rules on numbers are narrower than most students realise. From the APA Style numbers and statistics guidance:

1. Decimal places. Means and standard deviations from an integer scale — your four-point questionnaire — take one decimal in APA’s own convention, although many Nigerian departments require two. Follow your department, but be consistent across every table.
2. Leading zeros. Include the zero before the decimal point only when the statistic can exceed 1. A correlation, a proportion and a p-value cannot, so write r = .42 and p = .03, not 0.42.
3. Exact p values to two or three decimals, except below .001, where you write p < .001.
4. Numerals for 10 and above and for every number used in a statistic; words for zero to nine and for any number that opens a sentence.
5. Do not repeat a statistic in both the text and a table. Quote only the figures your argument turns on.
6. Statistical symbols are italic — M, SD, r, p, N — and never need defining. ANOVA and CI do.

Step 8: Reconcile before you submit

1. Questions equal sub-sections. Four research questions, four sub-sections, same order, same wording.
2. Tools equal tables. Every tool named in Chapter Three produces a table here, and no table comes from a tool you never named.
3. One N everywhere. Chapter Three, every table note, and the abstract.
4. Every table is mentioned by number in the text at least once.
5. Every hypothesis has a decision stated in words, not just a table.

Then run the spoken test: can you state each finding in one sentence without looking at the page? That is precisely what you will be asked to do, and the standard inventory of what else gets asked is in the guide to what questions are asked during a project defence. How the whole document fits together is summarised in how many chapters a final year project has.

Frequently asked questions

How do I write chapter four of a project?

Create one sub-section per research question, in the order they appear in Chapter One. Under each, place one table and a paragraph that states the finding, explains it in your setting and compares it with a study from Chapter Two. Then add one sub-section per hypothesis, each ending in an explicit decision.

What is chapter four of a project called?

Most Nigerian departments title it “Data Presentation, Analysis and Interpretation” or “Presentation and Analysis of Data”. Check your department’s project guidelines, because the exact wording is usually prescribed.

What is the criterion mean for a four-point scale?

2.50, being the average of 4, 3, 2 and 1. An item at or above 2.50 is accepted and one below it is rejected. On a five-point scale the criterion is 3.00.

How many tables should chapter four have?

Roughly one per research question, plus one per hypothesis, plus the bio-data table. Most Nigerian undergraduate projects land between five and nine. A chapter with fifteen tables usually means software output was pasted in rather than selected.

Do I put the standard deviation in the table?

Yes. The mean alone does not tell the reader whether respondents agreed with each other, and a panel can reasonably ask for the spread. Report it beside every mean.

Should hypotheses be tested in chapter four or chapter five?

Chapter Four in most Nigerian departments, with Chapter Five reserved for the summary, conclusion and recommendations. Some departments differ, so follow your handout.

Can I say I accepted the null hypothesis?

No. Say you failed to reject it, or that it was not rejected. Not finding evidence of a relationship is not evidence that no relationship exists, and this is corrected in almost every defence where it appears.

What does the decision rule mean in hypothesis testing?

It is the stated basis on which you accept or reject: either the calculated value against the critical table value at your degrees of freedom, or the p-value against 0.05. Both are valid; state which you used and use only that one throughout.

Do I discuss my findings in chapter four or chapter five?

Where your department says. Many Nigerian projects place a discussion of findings at the end of Chapter Four and keep Chapter Five for the summary and recommendations. What matters is that the discussion exists somewhere and compares your findings with the literature.

What if my findings contradict the studies in chapter two?

Report it plainly and explain it from your setting — a different population, a different period, a different instrument. A contradiction that is explained is a contribution; one that is quietly omitted is a defect a panel finds by reading your Chapter Two.

Do recommendations go in chapter four?

No. Chapter Four presents and interprets what the data showed. The moment you start telling the department what it should do, you have crossed into Chapter Five.