Hancock et al (2011) Flashcards
Background of the study
-Psychopathy is a personality disorder that cause a person to come across as charming, but they lack empathy and are extremely self-centred
-The way of assessing psychopathy is the PCL-R test, containing 20 items. Those that score 30/40 are deemed psychopathic
Aim of the study
-To investigate whether psychopaths use language in ways that are different to how non-psychopaths use language
-So that it might be possible to detect psychopathy from how a person speaks
Sample
-Self-selecting
-52 males in a Canadian prison for murder
-14 classed as psychopathic, 38 classes as non-psychopathic
-Had pled guilty to their crimes
What type of experiment was it?
-Quasi
-The IV was naturally occurring-whether or not someone was a psychopath
Procedure (interview section)
-PCL-R done on participants, but they did not know their results
-Neither did researchers interviewing them-double blind
-Interviewed individually and asked to describe what happened when they committed the murder using the ‘Step-Wise approach’
Procedure (analysis section)
-Interviews typed up as highly detailed transcripts, including any disfluencies
-Subjected to two types of compute analysis-Wmatrix and DAL
What was Wmatrix?
-A program that analysed and compared the entire group of transcripts from psychopaths and non-psychopaths
-Analysed the words used as well as the tense it was in
What was DAL?
-Dictionary of affect in language
-Applied to each transcript individually
-Assessed the pleasantness and intensity of emotional language used
Findings/conclusions
A number of differences were found between the psychopaths and the non-psychopaths in how they used language when describing the murder they had committed
Instrumental language
Psychopaths used more subordinating conjunctions, suggesting premeditated acts aimed at achieving specific goals
Hierarchy of needs
Psychopaths used more words associated with low-level physiological and material needs, whereas non-psychopaths used more words relating to higher level emotional or spiritual needs
What other ways did psychopaths and non-psychopaths differ?
Emotional expression-dysfluencies, psychological distancing and emotional content of language
Explain dysfluencies
Psychopaths speech contained 33% more ‘um’ and ‘ah’ phrases, reflecting the effort they had to put in to come across positively
Explain psychological distancing
They used more past tense verbs and included more articles, suggesting a distance between themselves and the murders they committed
Explain emotional content of language
It was found that the higher a person’s ‘Factor 1’ score was on the PCL-R, the lower they scored on pleasantness and intensity of emotional language