Introduction to Freewill and Determinism

Welcome to one of the most fascinating debates in Psychology! Have you ever wondered why you chose to wear the clothes you have on today? Did you freely choose them, or was your choice determined by things like the weather, what was clean, or even your personality? This is the heart of the Freewill vs. Determinism debate. In these notes, we will explore whether humans are the masters of their own destiny or if we are simply "programmed" to behave in certain ways.

Understanding this debate is crucial for the OCR A Level Psychology (H567) course because it helps us evaluate the research we study. It asks: "Can we blame someone for their actions if they had no choice?"


1. Defining the Core Concepts

To master this topic, you first need to understand the two main "sides" of the argument.

What is Freewill?

Freewill is the idea that humans are self-determining and free to choose their thoughts and actions. It suggests that we can reject influences (like our upbringing or our genes) and make our own path. In psychology, if a study suggests that people can "disobey" or "change their mind" regardless of the situation, it supports the freewill side of the debate.

What is Determinism?

Determinism is the view that free will is an illusion. It suggests that our behaviour is governed by internal or external forces over which we have no control. Think of it like a row of falling dominoes—one event must cause the next.

Psychologists often break determinism down into different types:

  • Biological Determinism: Our behaviour is controlled by our genes, brain structure, and hormones. (Example: The core study by Casey et al. suggests that our ability to resist temptation is linked to specific brain regions like the ventral striatum).
  • Environmental Determinism: Our behaviour is caused by features of the environment and systems of reward and punishment. (Example: Bandura’s study suggests children's aggression is determined by the models they observe).
  • Psychic Determinism: Our behaviour is determined by unconscious conflicts and childhood experiences. (Example: Freud’s study of Little Hans suggests his phobia was determined by his unconscious Oedipus complex).

2. The "Hard" vs. "Soft" Distinction

Don't worry if you find it hard to choose a side! Many psychologists take a middle ground.

Hard Determinism: This is the "extreme" view. It suggests that freewill is impossible and all behaviour has a cause. If we knew everything about a person, we could predict their future with \( 100\% \) accuracy.

Soft Determinism: This is a more modern view. It suggests that while our behaviour is influenced by certain forces (like our biology or environment), we still have some "wiggle room" to make conscious choices. It recognizes that while \( A \) might lead to \( B \), we have the mental capacity to intervene.

Analogy: Think of a game of cards. Determinism is the hand you are dealt (you can't change the cards). Freewill is how you choose to play them.


3. Illustrating the Debate with Core Studies

In your exam, you need to link this debate to the research you've learned in Component 02.

Research Supporting Determinism

  • Sperry (Biological Determinism): By studying split-brain patients, Sperry showed that the physical structure of the brain determines what a person can say or do. For example, if information is only in the right hemisphere, the patient cannot name the object, no matter how hard they try.
  • Milgram (Environmental/Situational Determinism): Milgram showed that the presence of an authority figure in a lab coat "determined" the behaviour of \( 65\% \) of participants, who went all the way to 450v, even when they didn't want to.

Research Supporting Freewill

  • Bocchiaro et al.: Although many people obeyed, some participants chose to be disobedient or whistle-blowers. This suggests that even in a high-pressure situation, individuals can exercise freewill to act according to their own morals.
  • Milgram (The \( 35\% \)): We often focus on the obedient participants, but \( 35\% \) of people stopped. This shows that humans have the capacity to exercise freewill and resist situational pressures.

4. Comparing with Other Debates

The freewill/determinism debate doesn't exist in a vacuum. It overlaps with other areas of the curriculum:

  • Nature/Nurture: Biological determinism is often linked to "nature" (genes), while environmental determinism is linked to "nurture" (upbringing).
  • Psychology as a Science: Determinism is a fundamental part of science. Science looks for cause-and-effect relationships (\( X \) causes \( Y \)). If we accept freewill, it becomes much harder to predict behaviour and establish scientific laws.
  • Individual/Situational: Situational explanations (like Piliavin’s cost-reward model) are often deterministic—they suggest the situation forces us to act. Individual explanations often allow more room for freewill.

5. Evaluation: Strengths and Weaknesses

Strengths of the Deterministic Side

  • Scientific Credibility: It allows for predictability. If we know what causes a behaviour, we can treat it. For example, if depression is biologically determined, we can use drugs to fix the chemical imbalance.
  • Objectivity: It focuses on things we can measure (like brain activity or environmental triggers) rather than "vague" concepts like "choice."

Weaknesses of the Deterministic Side

  • The Legal Problem: If a criminal's behaviour is \( 100\% \) determined by their genes or upbringing, can we legally or morally hold them responsible? Our justice system is built on the idea that people choose to commit crimes.
  • Inflexible: It ignores the fact that people often change their minds or act in unpredictable ways.

Strengths of the Freewill Side

  • Face Validity: It just feels right. In everyday life, we constantly make choices (what to eat, who to talk to).
  • Mental Health: People who feel they have an "internal locus of control" (a belief in their own freewill) tend to be mentally healthier than those who feel they have no control over their lives.

Weaknesses of the Freewill Side

  • Hard to Measure: Freewill is a subjective concept. You can't see "choice" under a microscope, which makes it unfalsifiable (hard to prove wrong).

6. Summary and Key Takeaways

Quick Review Box:

  • Freewill: The idea that we have total choice over our actions.
  • Determinism: The idea that our actions are caused by forces (Biological, Environmental, or Psychic).
  • Hard Determinism: No choice at all; behaviour is \( 100\% \) predictable.
  • Soft Determinism: There are causes for behaviour, but we still have conscious control in some situations.
  • Links to Science: Determinism supports the scientific goal of finding cause-and-effect (\( A \to B \)).

Common Mistake to Avoid: Don't assume that a study only fits one side! Many studies can be used to argue both sides. For example, Milgram's study shows determinism (the \( 65\% \) who obeyed) and freewill (the \( 35\% \) who walked away).

Memory Aid: Remember "BED" for the three types of determinism: Biological, Environmental, and Determinism (specifically Psychic).