False confessions and vulnerable suspects: An experimental approach

Slides:

Advertisements

Similar presentations

The Important Thing About By. The Important Thing About ******** The important thing about ***** is *****. It is true s/he can *****, *****, and *****.

Advertisements

Professor of Forensic Psychology Institute of Psychiatry

Personal Response System (PRS). Revision session Dr David Field Do not turn your handset on yet!

Research Design (chpt 3) A design is the practical plan of how to investigate a study Contains the nitty-gritty of how to conduct the research What subjects.

On-line resources

Hypothesis testing & Inferential Statistics

 x (x 2  0) 1. True2. False.  x (3x + 2 = 12) 1. True2. False.

THREE PILLARS OF EXPERIMENTAL RESEARCH

Generalized De Morgan’s Theorem Lecture L5.4 Section 5.1.

Chapter 15: Testing for a difference between two dependent (Correlated) Groups. Example: Suppose you wanted to test the drug that may affect IQ, but this.

Research Methods in Psychology. There are a number of methods used in Psychology to study people Laboratory Experiments Field Experiments Natural Experiments.

Conditional Statements Section 2-3 Conditional Statements If-then statements are called conditional statements. The portion of the sentence following.

Chapter 4 Variability. Introduction Purpose of measures of variability Consider what we know if we know that the mean test score was 75 Single score to.

Scientific Method: Science is ultimately based on observation (perceiving objects or events using one of the five senses) Observations often lead to questions.

Scientific Method. Observation:Question:Hypothesis:

The Scientific Method How to Solve just about anything Chemistry.

EXPERIMENTAL RESEARCH KEY CONCEPTS,COMMON ERRORS, CONFUSIONS 2006.

Scientific Methods Scientific Methods are the ways in which scientists answer questions and solve problems.

TRUE FALSE QUIZCORE 3 & 4 Round 1 Round 2Round TOTAL OVERALL SCORE

10-1 人生与责任淮安工业园区实验学校连芳芳 “ 自我介绍 ” “ 自我介绍 ” 儿童时期的我.

Identities, Contradictions and Conditional Equations.

Learning and remembering.

UOP PSYCH 610 W EEK 5 I NDIVIDUAL A SSIGNMENT W EEK F IVE H OMEWORK E XERCISE Check this A+ tutorial guideline at

Conditional Statements

Fuzzy Inference System

“Tell me and I'll forget; show me and I may remember; involve me and I'll understand.”

“Tell me and I'll forget; show me and I may remember; involve me and I'll understand.”

Statistics for the Social Sciences

Research Methods in Psychology

Chapter 6 Making Sense of Statistical Significance: Decision Errors, Effect Size and Statistical Power Part 1: Sept. 24, 2013.

Stamos Papastamou* Antonis Gardikiotis** Gerasimos Prodromitis*

Statistical Inference

The Future of Cyber Security

Yahoo Mail Customer Support Number

Most Effective Techniques to Park your Manual Transmission Car

How do Power Car Windows Ensure Occupants Safety

Dr. Clincy Professor of CS

Breaking Out of the Joint:

Chapter 6 Making Sense of Statistical Significance: Decision Errors, Effect Size and Statistical Power Part 1: Sept. 18, 2014.

مروری بر روانپزشکی اطفال و نوجوانان

Berg Balance (Max Score: 56)

THE SCIENTIFIC METHOD A Detective Story.

Dr. Clincy Professor of CS

Dr. Clincy Professor of CS

Variables noise or quiet test score IV DV

Unit 7D Assessing Risk Ms. Young.

Getting Started BPS 7e Chapter 0 © 2014 W. H. Freeman and Company.

Controlled Experiments

A Metric for Evaluating Static Analysis Tools

Dr. Clincy Professor of CS

Dr. Clincy Professor of CS

Quantitative Research

An IQ is like a glass..

Scientific Method: Science is ultimately based on observation (perceiving objects or events using one of the five senses) Observations often lead to questions.

The Process of Gathering Information

Section 2.5 Compound Inequalities

Exercise Solve x – 14 = 35. x = 49.

Variables and Equations

Reliability and Validity

Regression inference.

If there is any case in which true premises lead to a false conclusion, the argument is invalid. Therefore this argument is INVALID.

If there is any case in which true premises lead to a false conclusion, the argument is invalid. Therefore this argument is INVALID.

Presentation transcript:

False confessions and vulnerable suspects: An experimental approach Dr. Robert Horselenberg

False confessions

Individual differences

Field and experimental studies

Paradigm

Experiment: GCS 58 participants: 18 low (5.4, SD = 1.6) 21 medium (9.6, SD = .5) 19 high (14.1, SD = 1.2) 22% False confessions (n = 13) 78% True denials (n = 45) And 2 false denials; excluded

Experiment: GCS Low GCS score Medium GCS score High GCS score

Experiment: GSS 61 participants: 23 low(4.7, SD = 1.7) 16 medium (7.8, SD = 1.3) 22 high(12.1, SD = 1.7) 12% False confessions (n = 7) 88% True denials (n = 54) And 3 false denials and 1 true confession; excluded, all from mediocre GSS-group

Experiment: GSS Low GSS score Medium GSS score High GSS score

False confessions Conclusion: Careful with focusing on vulnerable suspects – Remember, ‘our’ miscarriages of justice with false confessions: None of them were vulnerable (Low IQ, young of age, psychiatric/mental disorders) Maybe better focus on system variables – Those the police can control!

Thank you! Questions? Robert.Horselenberg@maastrichtuniversity.nl