Mann, Vrij and Bull (2002), Suspects, lies and videotapes

Mann, Vrij and Bull (2002), Suspects, lies and videotapes

by Lindsay Round

1. Context

1.1. Previous research on lying...

1.1.1. Findings

1.1.1.1. Examples

1.1.2. Type of study

1.1.2.1. Problems x3

2. Aims

2.1. 1

2.2. 2

2.3. Reasons why there may be fewer nervous behaviours

2.3.1. 1

2.3.2. 2

2.4. Hypothesis

3. Method

3.1. Strength

4. Procedure

4.1. Police asked to recall...

4.2. To check truths and lies

4.2.1. Advantage

4.3. Selected truths and lies...

4.3.1. Advantage

4.4. Final videotape

4.4.1. Duration

4.4.2. Clips

4.4.2.1. Total number

4.4.2.2. Truths

4.4.2.3. Lies

4.4.2.4. Per participant

4.4.2.5. Duration

4.5. Coding behaviours

4.5.1. Number of coders

4.5.1.1. Advantage

4.5.2. The coders were naive

4.5.2.1. Advantage

4.6. To get a score

4.6.1. Quantitative data

5. Design

5.1. IV

5.2. DV

5.2.1. Gaze aversion

5.2.2. Blinking

5.2.3. Head movements

5.2.4. Self-manipulations

5.2.5. Illustrators

5.2.6. Hand/finger movements

5.2.7. Speech disturbances

5.2.8. Pauses

6. Sample

6.1. Gender

6.2. Police force

6.3. Ages

6.4. Ethnicity

6.5. Crimes

6.6. Problem

6.7. Type

7. Results

7.1. Significant differences in...

7.1.1. 1

7.1.2. 2

7.2. Individual differences occurred

8. Conclusion

8.1. Supports

8.1.1. Blinking especially important

8.2. Individual differences

8.3. To establish lying

8.4. Lying

9. Evaluation

9.1. Advantage - ethics

9.2. Limitation - interviewers

9.3. Limitation - comparisons

9.4. Limitation - reliability

9.5. Advantage - reliability

9.6. Advantage - ecological validity

9.7. Advantage - quantitative data

9.8. Limitation - ethics

9.9. Usefulness

10. Issues and Debates

10.1. Usefulness

10.2. Ecological validity

10.3. Ethics

10.4. Reliability/validity

10.5. Individual/situational

10.6. Qualitative/quantitative data

10.7. Generalisations

10.8. Snapshot/longitudinal

10.9. Reductionism