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Free Will vs Determinism: The Vohs & Schooler Study (2008)

Study Aim

Vohs and Schooler investigated the relationship between philosophical belief systems and moral action.

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Core Hypothesis

The study by Vohs and Schooler (2008) aimed to examine whether believing in determinism (the idea that our actions are predetermined and we have no free will) affects ethical behaviour, specifically cheating.
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Primary Question

They wanted to see if reducing belief in free will increases cheating behaviour.

Experimental Procedure

This sequence highlights the key stages of the manipulation and measurement used in the experiment.

1

Participants and Groups

Participants were university students. The experiment involved two groups: one read texts encouraging belief in free will, the other read texts supporting determinism.
2

The Task

After reading, participants played a computer game where they could earn money based on their performance. The game was structured so participants could easily cheat by misreporting scores to increase their payoff.
3

Measurement

The researchers then measured the amount of cheating by comparing reported scores with actual computer data.

Key Findings on Dishonesty

The Outcome

Participants exposed to the determinism text (reducing belief in free will) were more likely to cheat than those exposed to the free will text.

This showed that decreased belief in free will lowered ethical self-control and increased dishonest behaviour.

Theoretical Implications

The results generated three major conclusions regarding morality and personal belief.

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Moral Foundation

Belief in free will is important for moral behaviour.
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Social Risk

Presenting determinism as fact can have negative social consequences, reducing personal responsibility.
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Theory Support

The study supports Baumeister’s theory about the consequences of belief in free will.

Evaluation of the Study

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Strengths Well-controlled experimental design. Clear manipulation of belief and direct observation of cheating behaviour. Practical implications for education and society.
❌
Weaknesses Laboratory setting may not reflect real-world behaviour fully (low ecological validity). Short-term manipulation—long-term effects unknown. Ethical concerns about encouraging determinism and possible impact on participants’ outlook.
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Belief in Free Will & Cheating Study
Q
Main Aim

What was the main aim of the Vohs and Schooler (2008) study?

A
Answer

To examine whether believing in determinism affects ethical behaviour, specifically cheating.

Q
Participants

Who were the participants in the study?

A
Answer

University students.

Q
Experimental Groups

What were the two groups exposed to in the experiment?

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Answer

One group read texts encouraging belief in free will; the other read texts supporting determinism.

Q
Cheating Measurement

How was cheating behaviour measured?

A
Answer

By comparing participants’ self-reported scores in a computer game with actual computer-recorded scores.

Q
Effect of Determinism Text

What effect did reading about determinism have on participants?

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Answer

It increased the likelihood of cheating.

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Conclusion

What conclusion was drawn regarding belief in free will?

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Answer

Belief in free will is important for promoting ethical behaviour and moral self-control.

Q
Study Strength

Name one strength of the study.

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Answer

Well-controlled experimental design with clear manipulation and direct observation of cheating.

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Study Weakness

Name one weakness of the study.

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Answer

The laboratory setting may not fully represent real-world behaviour (low ecological validity).

Q
Supported Theory

What theory does the study support?

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Answer

Baumeister’s theory about the consequences of belief in free will on moral behaviour.

Q
Social Implication

What social implication does the study suggest about presenting determinism as fact?

A
Answer

It can reduce personal responsibility and increase dishonest behaviour.

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🧠 Belief in Free Will and Cheating Study Quiz

1. What was the main hypothesis of the Vohs and Schooler (2008) study?

The study hypothesized that reducing belief in free will (increased determinism belief) would increase cheating behaviour.

2. Which method did researchers use to manipulate participants’ beliefs?

Participants read texts that either encouraged belief in free will or determinism.

3. How did the experiment measure cheating behaviour?

Cheating was measured by the discrepancy between participants’ reported and actual game scores.

4. Which of the following is a limitation of the study?

Effects of short-term exposure to determinism belief on behaviour are unknown in the long term.

5. What social implication does the study highlight?

Belief in free will encourages moral self-control and honesty.

📊 Results

  • Notes and Quiz
  • Psychology
  • GCSE
  • Social Influence Studies
  • EDEXCEL