26. “How Did You Feel?”: Increasing Child Sexual Abuse Witnesses’ Production Of Evaluative Information., Thomas D. Lyon, Nicholas Scurich, Karen Choi, Sally Handmaker, Rebecca Blank
Dec 2011
26. “How Did You Feel?”: Increasing Child Sexual Abuse Witnesses’ Production Of Evaluative Information., Thomas D. Lyon, Nicholas Scurich, Karen Choi, Sally Handmaker, Rebecca Blank
Thomas D. Lyon
In child sexual abuse cases, the victim’s testimony is essential, because the victim and the perpetrator tend to be the only eyewitnesses to the crime. A potentially important component of an abuse report is the child’s subjective reactions to the abuse. Attorneys may ask suggestive questions or avoid questioning children about their reactions, assuming that children, given their immaturity and reluctance, are incapable of articulation. We hypothesized that How questions referencing reactions to abuse (e.g., “howdid you feel”) would increase the productivity of children’s descriptions of abuse reactions. Two studiescompared the extent to which children provided evaluative content, defined as …
25. Maltreated Children’S Ability To Estimate Temporal Location And Numerosity Of Placement Changes And Court Visits., Lindsay Wandrey, Thomas D. Lyon, Jodi A. Quas, William J. Friedman
Sep 2011
25. Maltreated Children’S Ability To Estimate Temporal Location And Numerosity Of Placement Changes And Court Visits., Lindsay Wandrey, Thomas D. Lyon, Jodi A. Quas, William J. Friedman
Thomas D. Lyon
Research examining children’s temporal knowledge has tended to utilize brief temporal intervals and singular, neutral events, and is not readily generalizable to legal settings in which maltreated children are asked temporal questions about salient, repeated abuse that often occurred in the distant past. To understand how well maltreated children can describe temporal location and numerosity of documented, personal experiences, we assessed 167 6- to 10-year-old maltreated children’s temporal memory for changes in their living arrangements and prior visits to court. Small percentages of children were capable of providing exact temporal location information (age, month, or season) regarding their first or …
24. Interviewing Children Versus Tossing Coins: Accurately Assessing The Diagnosticity Of Children’S Disclosures Of Abuse., Thomas D. Lyon, Elizabeth C. Ahern, Nicholas Scurich
Jul 2011
24. Interviewing Children Versus Tossing Coins: Accurately Assessing The Diagnosticity Of Children’S Disclosures Of Abuse., Thomas D. Lyon, Elizabeth C. Ahern, Nicholas Scurich
Thomas D. Lyon
We describe a Bayesian approach to evaluating children’s abuse disclosures and review research demonstrating that children’s disclosure of genital touch can be highly probative of sexual abuse, with the probative value depending on disclosure spontaneity and children’s age. We discuss how some commentators understate the probative value of children’s disclosures by: confusing the probability of abuse given disclosure with the probability of disclosure given abuse, assuming that children formally questioned about sexual abuse have a low prior probability of sexual abuse, misstating the probative value of abuse disclosure, and confusing the distinction between disclosure and nondisclosure with the dstinction between …
15. Assessing The Competency Of Child Witnesses: Best Practice Informed By Psychology And Law., Thomas D. Lyon
Jun 2011
15. Assessing The Competency Of Child Witnesses: Best Practice Informed By Psychology And Law., Thomas D. Lyon
Thomas D. Lyon
Truth-lie competency, which concerns the child's understanding of the difference between truth and lies and the importance of telling the truth, can be demonstrated by asking the child whether simple statements are the truth, and by asking the child to promise to tell the truth. Tests of children's truth-lie competency do not predict honesty, but eliciting a child's promise to tell the truth does increase honesty.
5. Ahern, E. C., & Lyon, T. D. (2011). Supplemental Investigative Interview Questions., Thomas D. Lyon
Dec 2010
5. Ahern, E. C., & Lyon, T. D. (2011). Supplemental Investigative Interview Questions., Thomas D. Lyon
Thomas D. Lyon
No abstract provided.
23. Assessing Children’S Competency To Take The Oath In Court: The Influence Of Question Type On Children’S Accuracy., Angela D. Evans, Thomas D. Lyon
Dec 2010
23. Assessing Children’S Competency To Take The Oath In Court: The Influence Of Question Type On Children’S Accuracy., Angela D. Evans, Thomas D. Lyon
Thomas D. Lyon
This study examined children’s accuracy in response to truth–lie competency questions asked in court.The participants included 164 child witnesses in criminal child sexual abuse cases tried in Los AngelesCounty over a 5-year period (1997–2001) and 154 child witnesses quoted in the U.S. state and federalappellate cases over a 35-year period (1974 –2008). The results revealed that judges virtually never foundchildren incompetent to testify, but children exhibited substantial variability in their performance based on question-type. Definition questions, about the meaning of the truth and lies, were the most difficultlargely due to errors in response to “Do you know” questions. Questions about …
22. Young Children’S Emerging Ability To Make False Statements., Thomas D. Lyon, Elizabeth C. Ahern, Jodi A. Quas
Apr 2010
22. Young Children’S Emerging Ability To Make False Statements., Thomas D. Lyon, Elizabeth C. Ahern, Jodi A. Quas
Thomas D. Lyon
This study examined the origins of children’s ability to make consciously false statements, a necessary component of lying. Children 2 to 5 years of age were rewarded for claiming that they saw a picture of a bird when viewing pictures of fish. They were asked outcome questions (“Do you win/lose?”), recognition questions (“Do you have a bird/fish?”), and recall questions (“What do you have?”), which were hypothesized to vary in difficulty depending on the need for consciousness of falsity (less for outcome questions) and self-generation of an appropriate response (more for recall questions). The youngest children (21⁄2 to 31⁄2 years …
14. Investigative Interviewing Of The Child., Thomas D. Lyon
Feb 2010
14. Investigative Interviewing Of The Child., Thomas D. Lyon
Thomas D. Lyon
Children, if questioned in a supportive manner, are capable of providing enormous amounts of productive information in response to open-ended questions. The irony is that many direct and suggestive methods once thought necessary to overcome abused children's reluctance to disclose abuse have been found counterproductive in two ways: they minimize the number of details in true allegations at the same time that they increase the risk of false allegations.
20. Maltreated And Non-Maltreated Children’S Evaluations Of Emotional Fantasy., Nathalie Carrick, Thomas D. Lyon, Jodi A. Quas
Jan 2009
20. Maltreated And Non-Maltreated Children’S Evaluations Of Emotional Fantasy., Nathalie Carrick, Thomas D. Lyon, Jodi A. Quas
Thomas D. Lyon
Objectives: The purpose of the study was to examine differences between maltreated and nonmaltreated children’s ability to differentiate emotionally evocative fantastic and real events.
Methods: Four- and 5-year-old (n = 145) maltreated and nonmaltreated children viewed images depicting positive and negative fantastic and real events and reported whether the events could occur in real life and how the images made them feel. Children also completed a measure of verbal ability.
Results: Maltreated children were more accurate than nonmaltreated children in stating that negative real events could occur, but less accurate in stating that frightening fantastic events …
10. Witnesses, Children As Legal., Thomas D. Lyon
Dec 2008
10. Witnesses, Children As Legal., Thomas D. Lyon
Thomas D. Lyon
Child witnesses present challenges for both law and psychology. The question is how to elicit statements from children without sacrificing the truth, the rights of those against whom the child is testifying, and the welfare of the child.
9. Authors’ Response To Vieth, Thomas D. Lyon
Dec 2008
9. Authors’ Response To Vieth, Thomas D. Lyon
Thomas D. Lyon
In 2007, Lamb, Orbach, Hershkowitz, Esplin, and Horowitz published in Child Abuse & Neglect a review of empirical research on the National Institute of Child Health and Development (NICHD) Investigative Interview Protocol in which they provided extensive research supporting the conclusion that the NICHD Protocol “comprises a useful and usable set of guidelines that allow trained interviewers to conduct investigative interviews that hew more closely than they otherwise would to universally endorsed professional guidelines” (p. 1212).
19. Young Children’S Competency To Take The Oath: Effects Of Task, Maltreatment, And Age., Thomas D. Lyon, Nathalie Carrick, Jodi A. Quas
Dec 2008
19. Young Children’S Competency To Take The Oath: Effects Of Task, Maltreatment, And Age., Thomas D. Lyon, Nathalie Carrick, Jodi A. Quas
Thomas D. Lyon
This study examined maltreated and non-maltreated children’s (N = 183) emerging understanding of ‘‘truth’’ and ‘‘lie,’’ terms about which they are quizzed to qualify as competent to testify. Four- to six-year-old children were asked to accept or reject true and false (T/F) statements, label T/F statements as the ‘‘truth’’ or ‘‘a lie,’’ label T/F statements as ‘‘good’’ or ‘‘bad,’’ and label ‘‘truth’’ and ‘‘lie’’ as ‘‘good’’ or ‘‘bad.’’ The youngest children were at ceiling in accepting/rejecting T/F statements. The labeling tasks revealed improvement with age and children performed similarly across the tasks. Most children were better able to evaluate ‘‘truth’’ …
