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Bias (human and dataset)

Term Key terms bank Y12 Software Automation

Also listed as: Human bias; Dataset source bias; Bias (human, dataset)

Definition

Human bias Y12 Software Automation Term

Developers' own assumptions or prejudices influence design, data selection or labelling and so the outcomes.

Example: Labellers' opinions shape the labels.

Found in: 2025 HSC marking guidelines, sample exam and familiarisation guidelines, school notes.

Dataset source bias Y12 Software Automation Term

Unfair results because the training data is unrepresentative or reflects past prejudice.

Example: A face detector trained mostly on one group fails on others.

Found in: syllabus, school notes.

Short version to memorise (key terms bank)

Unfair skew in data, labels or decisions that favours some outcomes or groups.

Where it is used in the test

Syllabus area: Y12 Software Automation.

Question types it can appear in

Where it has appeared in the paper

Software Automation (Part A, B). Part letters follow each paper’s own layout.

Related past questions

These are the questions the flashcard set links to this term. Open each one and compare your answer with its marking criteria.

Study links

How to use it in an answer

A model sentence

General advice, built from the definition and example above

“Developers' own assumptions or prejudices influence design, data selection or labelling and so the outcomes.” Then apply it: Labellers' opinions shape the labels.

In a short answer, give the definition in your own words first, then tie it to the situation in the question. Do not copy the example above unless it fits the scenario.

Command words used with it

From the linked past questions
  • Explain: Relate cause and effect; make the relationship between things evident; provide why and/or how. (2025 HSC Q27 (6 marks): Bias in AI (human bias and data set source bias))

Technique for the question types

What the marking guidelines and feedback say

2025 HSC Q27 (6 marks): Bias in AI (human bias and data set source bias)

Marker feedback (better responses): use specific examples from the video AND the broader effect beyond it; identify different categories of bias and how they affected the training data, the AI, its outputs and fitness for purpose; contrast failure types; discuss bias in a wider context (AI as a trusted source of information); do not just restate the video/transcript; describe the failure rather than only naming 'the shoe game' or 'the physicist example'; show the importance of checks to prevent learned bias being amplified.

Worked answers from the marking guidelines

2025 HSC Q27 (6 marks): Bias in AI (human bias and data set source bias) (6 marks): criteria and sample answer

Criteria

6: Explains how human bias could affect the usefulness of AI solutions AND supports with reference to the video. 5: Describes how, and refers to a scenario(s) in the video. 4: Outlines how human bias could affect AI solutions and refers to the video. 2-3: Identifies some sources/examples of human bias AND/OR effects on AI AND/OR outlines how AI learns. 1: Some relevant information.

Sample answer

AI develops its ability by analysing vast amounts of data. The quality of these data can be influenced by human bias, and in turn, affect the usefulness of AI solutions.

Human bias may be explicit or implicit. Explicit biases are intentional. For example, a researcher may favour male physicists and only collect pictures of male physicists for training an AI solution, as shown in the video. Implicit biases operate unconsciously and may be shaped by social and cultural factors. Whether the bias was explicit or implicit, the choice of male physicists would suggest to the AI solution that physicists are male.

Human bias can occur in various stages of the development of AI solutions. As shown in the photo library example, training data needs to be diverse and representative, otherwise AI solutions may produce inaccurate or unhelpful responses. The process of labelling training data may also introduce biases as people may have different interpretations of the same data. The video shows that if most people draw shoes in particular ways, certain types of shoes will not be recognised as a shoe.

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Sample exam Q23a (3 marks): Bias in machine learning (3 marks): criteria and sample answer

Criteria

3: Shows thorough understanding of how the effects of human bias on training can be minimised. 2: Outlines some effects of human bias on ML OR features of training. 1: Some relevant information.

Sample answer

Training data is initially selected by humans, who may unintentionally introduce their own biases. To minimise this, ensure that training data is representative of the problem the ML model will address. Reviewing data by individuals from diverse backgrounds could identify and reduce potential biases, ensuring fairer and accurate model performance.

Open the question page

Common mistakes

General advice
  • Use the term exactly as the syllabus words it, then link it to the scenario in the question; the 2025 feedback repeatedly rewards using the stimulus.
  • Answer the command word: outline gives main points only, explain gives a reason or cause, discuss gives both sides.

Same group in the syllabus: Impact of automation · Safety of workers · People with disability · Nature and skills of employment · Production efficiency, waste and the environment · Economy and distribution of wealth · Patterns in human behaviour