Hancock et al. (2011) Language of psychopaths — contemporary

Introduction to Hancock et al. (2011): The Language of Psychopaths

Welcome to one of the most fascinating studies in the OCR Psychology course! Have you ever wondered if the way someone speaks could reveal the hidden workings of their mind? Hancock et al. (2011) explored exactly this. This study is part of the Individual Differences area and looks at how we can "measure" the differences between people—specifically, the difference between those who are psychopaths and those who are not.

In this chapter, we look at psycholinguistics (the relationship between language and the mind). Hancock wanted to see if the "unconscious" choices a person makes when they speak can act as a "telltale signature" of a psychopathic personality. This study is the contemporary study for the theme of Measuring Differences, following on from Gould's classic study on IQ testing.

The Background: What is a Psychopath?

Before we dive into the research, let's define our key terms. A psychopath is someone who typically shows a lack of empathy, a lack of remorse, and "shallow affect" (they don't feel deep emotions like others do). They are often very manipulative and can be skilled at "faking" normal human emotions.

Hancock believed that because psychopaths view the world differently, their language would reflect three specific things:
1. Instrumental Nature: They see the world as "theirs for the taking," so their language might be more logical and goal-oriented.
2. Basic Needs: They focus on physical survival (food, money) rather than social needs (family, spirituality).
3. Emotional Detachment: They struggle to experience emotion, so they might use language that distances them from their crimes.

The Research Method

The Participants (The Sample)

The study involved 52 male murderers who were being held in Canadian prisons. All of them admitted to their crimes.
- 14 were classified as psychopaths.
- 38 were classified as non-psychopaths (the control group).

How were they measured?

To decide who was a psychopath, researchers used the PCL-R (Psychopathy Checklist-Revised). This is a standard tool where a person is scored out of 40. In this study, a score of \(25\) or above was used to identify a psychopath. Don't worry if this seems like a low bar—usually, the cutoff is \(30\), but \(25\) is often used in research.

The Procedure

1. Participants were interviewed by two psychology graduate students and one research assistant (who didn't know which prisoners were psychopaths—this is called a "blind" procedure to avoid bias).
2. The interview used a Step-Wise technique, where the men were asked to describe their homicides in as much detail as possible.
3. The interviews were recorded and then turned into text (transcribed).
4. The text was analyzed using two computer programs:
     - Wmatrix: Analyzed the parts of speech (nouns, verbs) and the semantic themes (what they were talking about).
     - DAL (Dictionary of Affect in Language): Analyzed the emotional tone of the words used.

The Results: What did they find?

The researchers found some very specific differences in the way psychopaths spoke compared to non-psychopaths.

1. Instrumental Language (Logic and "Why")

Psychopaths used significantly more subordinating conjunctions. These are words like "because", "since", and "so that".
Example: A psychopath might say, "I killed him so that I could get his money." This shows they viewed the murder as a logical tool to achieve a goal (an instrumental act).

2. Focusing on Basic Needs

Psychopaths used twice as many words related to basic physiological needs, such as food, drink, and money.
Non-psychopaths, on the other hand, used more words related to social needs, such as family, religion, and spirituality.
Interesting fact: Psychopaths were much more likely to describe what they ate on the day of the murder than how they felt about the victim!

3. Emotional Detachment and "The Mask"

Psychopaths showed several signs of being emotionally distant from their crimes:
- They used more past tense verbs (e.g., "stabbed" vs "stabbing"). This suggests they were distancing themselves from the event in their minds.
- They used more disfluencies (words like "uh" and "um"). The researchers suggested this is because it is hard work to "fake" an emotional story, and the "ums" were the sound of the psychopath's brain trying to stay in character.

Key Summary Table

Psychopaths used more: Subordinating conjunctions (because, so), Basic needs (food, money), Past tense, Disfluencies (uh, um).
Non-Psychopaths used more: Social needs (family, religion), Present tense.

Conclusions

Hancock concluded that psychopaths speak in a way that is "idiosyncratic" (unique to them). Their language is less emotional, more logical, and focused heavily on physical survival rather than social connection. Crucially, these differences are often unconscious—even a master manipulator can't easily control their use of the word "because" or their "uhs" and "ums"!

Evaluation and Methodological Issues

Strengths

• Validity: Using computer programs like Wmatrix means the analysis was objective. The computer doesn't have feelings or bias!
• In-depth Data: Semi-structured interviews allowed the participants to use their own words, providing rich qualitative data that was then turned into quantitative data.

Weaknesses

• Sampling Bias: All participants were Canadian male murderers. We cannot be sure if female psychopaths or "successful" psychopaths (those who haven't been caught) would speak the same way.
• Ethics: While participants gave consent, prisoners are considered a "vulnerable" group who might feel pressured to take part.

Quick Review: Check Your Knowledge

1. What is the "Step-Wise" interview?
It is a technique used to help people describe an event (like a crime) in great detail without being led by the interviewer.

2. Why did psychopaths use "uh" and "um" more?
It is believed they were using the extra time to "plan" their speech and make their story sound more convincing to the listener.

3. How does this link to the "Individual Differences" area?
It shows that there are measurable, psychological differences in the way individuals process the world and express themselves through language.

Memory Tip: Think of the "Three Ps" for Hancock's results: Past tense, Physiological needs (food), and Planning (the "ums" and "uhs").

Note: This study is often compared to Gould (1982). While Gould looks at how we measure intelligence, Hancock looks at how we can measure personality through language. Both studies show the difficulties and complexities of trying to "label" or "score" individual differences.