What is the controlled assessment, and how do you carry out a strong investigation?
The controlled assessment investigation: what Unit 4 is, how it is weighted and structured, and how to plan, research, analyse and conclude a strong investigation.
A concise CCEA GCSE Learning for Life and Work overview of the Unit 4 controlled assessment. Covers what the investigation is, its 40 percent weighting, the stages of planning, researching, analysing and concluding, and how to do well, drawing on a topic from the taught units.
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What this dot point is asking
This dot point gives a concise overview of Unit 4, the controlled assessment. It is not a body of content to memorise like the taught units; instead, it asks you to understand what the investigation is, how it is weighted and structured, and how to carry it out well. The marked skill, when this is examined or assessed, is planning, researching, analysing and concluding an investigation on a topic drawn from the taught units.
What the controlled assessment is
Because it is worth 40 percent, the controlled assessment carries as much weight as two of the written papers combined, so doing it well matters a great deal to the final grade.
Choosing a topic
A good investigation starts with a focused topic drawn from the taught units, and a clear aim or question to answer. A topic that is too broad is hard to investigate well, while a focused one allows depth. The aim should be something that can be researched, for example a question about an employability, citizenship or personal development issue. Choosing well at the start makes every later stage easier.
The stages of the investigation
A strong investigation follows clear stages, each building on the last:
- Plan. Choose the topic and aim, decide what information you need, and plan how to gather it.
- Research. Collect information from a range of sources, both primary (gathered first-hand, such as a survey or interview) and secondary (existing research, such as websites, books or reports), keeping a record of where each came from.
- Analyse. Organise and make sense of the information, drawing out what it shows and presenting it clearly, for example in charts where useful.
- Conclude and evaluate. Reach a supported conclusion that answers the aim, and reflect on how well the investigation worked and what could be improved.
Setting out the stages in order, and showing each builds on the previous one, is the key to a process answer.
Why a range of sources matters
Using a range of sources improves an investigation. It makes the findings more reliable, because different sources can confirm or challenge one another rather than resting on a single, possibly biased, view. It also gives a fuller picture, combining first-hand primary information with secondary research, so the conclusion rests on stronger evidence. This is why the investigation rewards drawing on several sources rather than one.
How to do well
The investigation rewards more than knowledge. Doing well means a focused aim, thorough research from varied sources, clear analysis that draws out what the evidence shows, and a supported conclusion with honest evaluation. Good organisation and meeting the controlled-conditions requirements set by CCEA matter too. In short, the controlled assessment tests whether you can investigate a topic properly, not just recall facts.
Try this
Q1. How much is the controlled assessment worth, and what is it? [2 marks]
- Cue. Unit 4, worth 40 percent of the GCSE; an investigation into a topic drawn from the taught units, under controlled conditions.
Q2. Name the four main stages of an investigation. [2 marks]
- Cue. Plan, research, analyse, and conclude and evaluate.
Q3. What is the difference between a primary and a secondary source? [2 marks]
- Cue. A primary source is gathered first-hand, such as a survey; a secondary source is existing research, such as a website or report.
Exam-style practice questions
Practice questions written in the style of CCEA exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
CCEA Unit 4 (style)6 marksDescribe the stages you would follow to carry out a controlled assessment investigation.Show worked answer →
A six-mark style question on the process. Reward the main stages set out clearly.
Plan: choose a focused topic from the taught units, write a clear aim or question, and decide what information you need and how to gather it.
Research: collect information from a range of sources, both primary (such as a survey or interview) and secondary (such as websites, books or reports), keeping a record of where it came from.
Analyse: organise and make sense of the information, drawing out what it shows, and presenting it clearly, for example in charts where useful.
Conclude and evaluate: reach a supported conclusion that answers the aim, and reflect on how well the investigation worked. A strong answer sets out the stages in order and shows each one builds on the last.
CCEA Unit 4 (style)4 marksExplain why using a range of sources improves an investigation.Show worked answer →
A four-mark question. Reward a developed explanation of why a range of sources matters.
Using a range of sources makes an investigation more reliable, because different sources can confirm or challenge one another rather than relying on a single, possibly biased, view.
It also gives a fuller picture, combining primary information gathered first-hand with secondary information from existing research, so the conclusion rests on stronger evidence. A strong answer links a range of sources to reliability and a fuller, better-supported conclusion.
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Sources & how we know this
- CCEA GCSE Learning for Life and Work specification — CCEA (2017)