Kamala London

DISCLOSURE OF CHILD SEXUAL ABUSE What Does the Research Tell Us About the Ways That Children Tell

The empirical basis for the child sexual abuse accommodation syndrome (CSAAS), a theoretical model that posits that sexually abused children frequently display secrecy, tentative disclosures, and retractions of abuse statements was reviewed. Two data sources were evaluated: retrospective studies of adults’ reports of having been abused as children and concurrent or chart-review studies of children undergoing evaluation or treatment for sexual abuse. The evidence indicates that the majority of abused children do not reveal abuse during childhood. However, the evidence fails to support the notion that denials, tentative disclosures, and recantations characterize the disclosure patterns of children with validated histories of sexual abuse. These results are discussed in terms of their implications governing the admissibility of expert testimony on CSAAS. Although it is widely acknowledged that the sexual assault of children is a major societal concern, it is not known how many children are victims of sexual abuse in the United States (Ceci & Friedman, 2000). There are two major reasons for this lack of data. First, present estimates of the incidence of child sexual abuse (CSA) are primarily based on reports received and validated by child protection agencies. These figures, however, do not reflect the number of unreported cases or the number of cases reported to other types of agencies (e.g., sheriff’s offices) and professionals (e.g., mental health diversion programs). Second, the accuracy of diagnosis of CSA is often difficult because definitive medical or physical evidence is lacking or inconclusive in the vast majority of cases (Bays & Chadwick, 1993; Berenson, Heger, & Andrews, 1991), and because there are no gold standard psychological symptoms specific to sexual abuse (Kendall-Tacket, Williams, & Finkelhor, 1993; Poole & Lindsay, 1998; J. M. Wood & Wright, 1995). Given these limitations of medical and psychological evidence, children’s statements typically represent the central evidence for judging the occurrence of

Review of the contemporary literature on how children report sexual abuse to others: Findings, methodological issues, and implications for forensic interviewers

Methods used during forensic interviews with children are driven by beliefs about how children recall and report child sexual abuse (CSA) to others. Summit (1983) proposed a theory (Child Sexual Abuse Accommodation Syndrome) contending that, due to the specific traumatic characteristics of CSA, children will often delay disclosing abuse or altogether fail to disclose during childhood, deny abuse when asked, and often recant abuse allegations. His theory has had a tremendous impact on the field of CSA forensic evaluations, despite its dearth of empirical support. In this paper, we review and critique the contemporary literature from two main sources: retrospective accounts from adults reporting CSA experiences and studies of children undergoing forensic evaluation for CSA. We conclude that data support the notion that children often delay abuse disclosure, but that among valid abuse cases undergoing forensic evaluation, denial and recantation are not common. Methodological issues and implications for forensic interviewers are discussed.

Autobiographical memory and suggestibility in children with autism spectrum disorder

Two paradigms were developed to examine autobiographical memory (ABM) and suggestibility in children with autism spectrum disorder (ASD). Children with ASD (N = 30) and typically developing chronological age-matched children (N = 38) ranging in age from 5 to 10 years were administered an ABM questionnaire. Children were asked about details of current and past personally experienced events. Children also participated in a staged event, and later were provided with true and false reminders about that event. Later, children again were interviewed about the staged event. The results from both paradigms revealed that children with ASD showed poorer ABM compared to controls. Generally, their ABM was marked by errors of omission rather than by errors of commission, and memory was particularly poor for early-life events. In addition, they were as suggestible as the typically developing children. The results are discussed in terms of applied and theoretical implications.

Changing the criterion for memory conformity in free recall and recognition

Peoples responses during memory studies are affected by what other people say. This memory conformity effect has been shown in both free recall and recognition. Here we examine whether accurate, inaccurate, and suggested answers are affected similarly when the response criterion is varied. In the first study, participants saw four pictures of detailed scenes and then discussed the content of these scenes with another participant who saw the same scenes, but with a couple of details changed. Participants were either told to recall everything they could and not to worry about making mistakes (lenient), or only to recall items if they were sure that they were accurate (strict). The strict instructions reduced the amount of inaccurate information reported that the other person suggested, but also reduced the number of accurate details recalled. In the second study, participants were shown a large set of faces and then their memory recognition was tested with a confederate on these and fillers. Here also, the criterion manipulation shifted both accurate and inaccurate responses, and those suggested by the confederate. The results are largely consistent with a shift in response criterion affecting accurate, inaccurate, and suggested information. In addition we varied the level of secrecy in the participants’ responses. The effects of secrecy were complex and depended on the level of response criterion. Implications for interviewing eyewitnesses and line-ups are discussed.

Multilevel modelling: Beyond the basic applications

Over the last 30 years statistical algorithms have been developed to analyse datasets that have a hierarchical/multilevel structure. Particularly within developmental and educational psychology these techniques have become common where the sample has an obvious hierarchical structure, like pupils nested within a classroom. We describe two areas beyond the basic applications of multilevel modelling that are important to psychology: modelling the covariance structure in longitudinal designs and using generalized linear multilevel modelling as an alternative to methods from signal detection theory (SDT). Detailed code for all analyses is described using packages for the freeware R.

Examining the efficacy of truth/lie discussions in predicting and increasing the veracity of children's reports

This study investigated whether childrens ability to reason about truths and lies influenced their truth-telling behavior. Four-six-year-old children (n=118) played a game that was intended to motivate children to use deception to hide a minor transgression. Next, an interviewer gave children one of four preliminary discussions. Children received a typical forensic truth/lie discussion (TLD), a developmentally appropriate and more elaborate TLD, or one of two discussions that controlled for the time spent conversing with children. Children were interviewed about the event. The results revealed that childrens performance on the truth/lie questions did not predict their truth-telling behavior. Regardless of their performance on truth/lie questions, children who received TLDs gave more honest reports than children who did not receive TLDs. These results suggest that discussing truths and lies with children may promote truth-telling behavior. However, the results cast doubt on the validity of using childrens performance on truth/lie questions as a measure of competency.

Modern Regression Techniques Using R

Modern regression techniques using R , Modern regression techniques using R , کتابخانه دیجیتال جندی شاپور اهواز

Peer influence on event reports among adolescents and young adults

When two or more people witness an event together, the event report from one person can influence others’ reports. In the current study we examined the role of age and motivational factors on peer influence regarding event reports in adolescents and young adults. Participants (N=249) watched a short video of a robbery then answered questions with no co-witness information or with information believed to be from a co-witness. Public and private response conditions were included to explore motivations for peer influence. Co-witness information influenced participants’ responses, although the effect was equally strong in the private and the public co-witness conditions. Peer influence on event reports was steady across a large age range (11- to 25-year-olds).

Young children's ability to use two-dimensional and three-dimensional symbols to show placements of body touches and hidden objects.

In two experiments, we investigated 3- to 5-year-old childrens ability to use dolls and human figure drawings as symbols to map body touches. In Experiment 1, stickers were placed on different locations of childrens bodies, and the children were asked to indicate the locations of the stickers using three different symbols: a doll, a human figure drawing, and the adult researcher. Performance on the tasks increased with age, but many 5-year-olds did not attain perfect performance. Surprisingly, younger children made more errors on the two-dimensional (2D) human figure drawing task compared with the three-dimensional (3D) doll and adult tasks. In Experiment 2, we compared childrens ability to use 3D and 2D symbols to indicate body touch as well as to guide their search for a hidden object. We replicated the findings of Experiment 1 for the body touch task; for younger children, 3D symbols were easier to use than 2D symbols. However, the reverse pattern was found for the object locations task, with children showing superior performance using 2D drawings over 3D models. Although children showed developmental improvements in using dolls and drawings to show where they were touched, less than two thirds of the 5-year-olds performed perfectly on the touch tasks. Both developmental and forensic implications of these results are discussed.

Common Beliefs About Child Sexual Abuse and Disclosure: A College Sample

ABSTRACT Adults’ common beliefs about child sexual abuse and disclosure were explored. Participants (N = 670) were questioned about key areas of child sexual abuse that could affect decision-making processes of jurors evaluating child sexual abuse cases. These areas included victim and perpetrator characteristics, medical and behavioral indicators of child sexual abuse, memories for the event, and disclosure of the event. The scientific literature pertaining to these same areas are reviewed. While individual beliefs were consistent with some areas of the scientific literature (e.g., victim and perpetrator characteristics), they strongly contrasted the literature in other important areas (e.g., memories for the event, indicators of child sexual abuse, and the likelihood of denial and recantation). Implications, including the option of providing expert testimony to reduce discrepancies, are discussed.