A psychological test battery to detect prison inmates who fake insanity or mental retardation

A contrasted groups design was used to investigate the accuracy with which a test battery could detect persons faking mental disorder. The MMPI and Bender Gestalt were used in combination with a Malingering Scale that was developed for initial validation. One hundred adult males comprised five groups of 20 subjects each. Noncriminal psychiatric inpatients and mental retardates were compared with prison inmates who were given a financial incentive to successfully fake ‘insanity’ or mental retardation, and with inmate controls. Based on discriminant analyses, 92 to 95% of subjects were correctly classified as either faking or not faking. Although cross-validation is needed, this study reduced many of the analog factors which have comprised the generalizability of previous findings.     

THE SUSCEPTIBILITY OF OVERT AND COVERT INTEGRITY TESTS TO COACHING AND FAKING

Abstract— Although previous research has indicated that faking can affect integrity test scores, the effects of coaching on integrity test scores have never been examined We conducted a between-subjects experiment to assess the effects of coaching and faking instructions on an overt and a covert integrity test Coaching provided simple rules to follow when answering test items and instructions on how to avoid elevated validity scale scores There were five instruction conditions "just take,""fake good,""coach overt,""coach covert," and coach both All subjects completed both overt and covert tests and a measure of intelligence Results provided strong evidence for the coachability of the overt integrity test, over and above the much smaller elevation in the faking condition The covert test apparently could be neither coached nor faked successfully Scores on both integrity tests tended to be positively correlated with intelligence in the coaching and faking conditions We discuss the generalizability of these results to other samples and other integrity tests, and the relevance of the coachability of integrity tests to the ongoing debate concerning the prediction of counterproductive behavior     

人格测验中作假的控制方法

被试很容易对人格测验作假,这严重影响了人格测验的有效性。目前测评专家已经提出了一些应对作假的方法,它们可被分为事前控制技术和事后识别技术两大类。前者包括迫选式量表,警告及假渠道技术等,后者包括作假识别量表,IRT及反应时识别技术等。目前,在人格测验中嵌套使用作假识别量表,以及在测验指导语中加入警告是比较有效的两种方法,迫选式量表的发展也值得期待。由于研究者对作假的内部发生机制了解较少,这制约了IRT与反应时识别技术的发展。     

Reduction of faking with the use of a forced-choice personality test: Cross-cultural comparisons between South Korea and the United States

Forced-choice format tests have been suggested as an alternative to Likert-scale measures for personnel selection due to robustness to faking and response styles. This study compared degrees of faking occurring in Likert-scale and forced-choice five-factor personality tests between South Korea and the United States. Also, it was examined whether the forced-choice format was effective at reducing faking in both countries. Data were collected from 396 incumbents participating in both honest and applicant conditions (N_SK = 179, N_US = 217). Cohen's d values for within-subjects designs (ds_within) for between the two conditions were utilized to measure magnitudes of faking occurring in each format and country. In both countries, the degrees of faking occurring in the Likert-scale were larger than those from the forced-choice format, and the magnitudes of faking across five personality traits were larger in South Korea by from 0.07 to 0.12 in ds_within. The forced-choice format appeared to successfully reduce faking for both countries as the average ds_within decreased by 0.06 in both countries. However, the patterns of faking occurring in the forced-choice format varied between the two countries. In South Korea, degrees of faking in Openness and Conscientiousness increased, whereas those in Extraversion and Agreeableness were substantially decreased. Potential factors leading to trait-specific faking under the forced-choice format were discussed in relation to cultural influence on the perception of personality traits and score estimation in Thurstonian item response theory (IRT) models. Finally, the adverse impact of using forced-choice formats on multicultural selection settings was elaborated.     

Effect of symptom information and intelligence in dissimulation: an examination of faking response styles by inmates on the Basic Personality Inventory

This study employed the Basic Personality Inventory (BPI) to differentiate various types of dis-simulation, including malingered psychopathology and faking good, by inmates. In particular, the role of intelligence in utilizing symptom information to successfully malinger was examined. On admission to a correctional facility, 161 inmates completed the BPI under standard instructions and then again under instructions to fake good (n = 55) or to malinger psychotic (n = 35), posttraumatic stress disorder (n = 36), or somatoform (n = 35) psychopathology. Unlike symptom information, intelligence evidenced some support for increasing inmates' effectiveness in malingering, although there was no relationship between higher intelligence and using symptom information to successfully evade detection. Overall, the BPI was more effective in detecting malingered psychopathology than faking good. Implications for the detection of dissimulation in correctional and forensic settings are discussed.     

Test Sophistication and Faking in the TAT Situation

This study investigated the effects of conscious altering of response (faking) and test sophistication on TAT performance. Thirty-six naive undergraduates and 36 TAT-sophisticated graduate students and clinicians wrote stories to all 20 TAT cards under one of two conditions: standard, and instructions to “fake” hostility. The four groups were then compared by Analysis of Variance on a number of quantitative response measures. Effects of the two experimental variables, sophistication and faking, varied with the response measure, but, in general, faking instructions led to response changes, and sophisticated subjects performed differently than naive ones. Some sex differences were also apparent. It was concluded that sophistication is a factor in how a subject fakes, the sophisticated subjects generally doing a better job of it. The implications for the effect of stimulus pull were discussed and it was concluded that the pull value of the stimulus is not affected by a peripheral response set but is affected by sophistication.     

On the interpretation of below-chance responding in forced-choice tests

Two-alternative, forced-choice tests are commonly used to assess cooperation in examinations of neurocognitive functioning. Most commercially available tests do not primarily depend on comparing the total correct responses to the number expected by guessing. Nevertheless, the tests afford an opportunity to make stronger judgments about the cooperation of test-takers when the test score is lower than the range of scores expected for guessing. Unfortunately, many researchers and clinicians make serious errors in communicating what is "guessing" and what is "worse than guessing" (or malingering). This article describes proper methods of evaluating total correct responses on a forced-choice test.     

罗夏墨迹测验中“装好”与诈病反应的研究与进展

传统观念认为罗夏测验具有投射测验的性质,因此受测者无法在其测验中故意“装好”和诈病。但相关研究发现,受测者的“装好”反应对于罗夏测验结果没有产生实质性的影响,不能改变罗夏测验的基本数据特征和结构汇总性量表;而诈病反应的研究结论不尽相同,受测者有可能造成罗夏测验变量得分的改变,伪装成相应精神病理症状。如果联合使用MMPI和罗夏测验,则可以精确地评估受测者的伪装反应。目前已有的研究存在被试取样单一、研究数量偏少、无法确定临界值等问题。罗夏测验“装好”和诈病反应研究还处于初步阶段,需要继续深入研究并建立专门的“装好”和诈病量表。     

Detection of coached general malingering on the MMPI-2

The current study examined the effects of validity-scale coaching on one's ability to feign general psychopathology. College students were coached on malingering strategies and completed the MMPI-2. Their responses were compared with students asked to malinger psychopathology without validity-scale coaching and with psychiatric inpatients completing the MMPI-2 under standard instructions. In accordance with previous research (e.g., J. R. Graham, D. Watts, & R. E. Timbrook, 1991), uncoached malingerers were adequately discriminated from patients by using the Infrequency (F) scale. However, as suggested by previous research (R. Rogers, R. M. Bagby, & D. Chakraborty, 1993), the F scale was not as effective at classifying coached malingerers. It was found that other validity indicators, such as the Infrequency Psychopathology Scale were more accurate at discriminating between coached malingerers and hospitalized patients.     

Detecting Fake-Good and Fake-Bad MMPI-2 Profiles

This study examined the extent to which the validity scales of the Minnesota Multiphasic Personality Inventory-2 (MMPI-2) could identify subjects who were faking bad or faking good and differentiate between psychiatric patients and normal subjects who were faking bad. Subjects were 106 undergraduate college students and 50 psychiatric patients. Results indicate that the mean profiles and optimal cutoff scores resembled those previously reported for the original MMPI. Accurate identification of persons who were faking bad or faking good was achieved. It was possible to differentiate between the psychiatric patients and normal persons who were faking bad, but different cutoff scores were needed to differentiate between normals taking the test under standard instructions and those instructed to fake bad. Optimal cutoff scores were suggested.     

From ABLE to TAPAS: A New Generation of Personality Tests to Support Military Selection and Classification Decisions

This article discusses 3 modern forced-choice personality tests developed for the U.S Armed Services to provide resistance to faking and other forms of response distortion: the Assessment of Individual Motivation, the Navy Computerized Adaptive Personality Scales, and the Tailored Adaptive Personality Assessment System. These tests represent the transition from Likert to forced-choice formats and from static to computerized adaptive item selection to meet the challenges of large-scale, high-stakes testing environments. For each test, we briefly describe the personality constructs that are assessed, the response format and scoring methods, and selected ongoing research and development efforts. We also highlight the potential of these tests for personnel selection, classification, and diagnostic screening purposes.     

Detecting fake-good and fake-bad MMPI-2 profiles

This study examined the extent to which the validity scales of the Minnesota Multiphasic Personality Inventory-2 (MMPI-2) could identify subjects who were faking bad or faking good and differentiate between psychiatric patients and normal subjects who were faking bad. Subjects were 106 undergraduate college students and 50 psychiatric patients. Results indicate that the mean profiles and optimal cutoff scores resembled those previously reported for the original MMPI. Accurate identification of persons who were faking bad or faking good was achieved. It was possible to differentiate between the psychiatric patients and normal persons who were faking bad, but different cutoff scores were needed to differentiate between normals taking the test under standard instructions and those instructed to fake bad. Optimal cutoff scores were suggested.     

迫选式人格测验的传统计分与IRT计分模型

迫选测验的传统计分方式会产生自模式数据, 不能进行传统的信效度检验、因素分析和方差分析等。近年来研究者提出了一些基于项目反应理论的计分模型, 如瑟斯顿IRT模型和MUPP模型等, 它们可以规避自模式数据的弊端。瑟斯顿IRT模型方便进行参数估计, 模型定义灵活; 而MUPP模型的拓展性较差, 参数估计的方法有待提高。另一方面, 已有研究者基于MUPP模型开发了一些抗作假的迫选测验, 而瑟斯顿IRT模型距离这种应用还比较远。此外, 两个模型的适用性和有效性都有待更多的实证研究来检验。     

Using Personality Testing for Personnel Selection: Faking and Test-Taking Inductions

This research assessed whether warning subjects that faked responses could be detected would reduce the amount of faking that might occur when using a personality test for selection of police officers. Also, personality test subscales which best differentiated honest from dissimulated responses were determined. Subjects (N=120) were randomly assigned to a straight-take (that is, respond honestly), fake good, or modified fake good group. Both fake good groups were instructed to respond to the test so as to appear favourably for the job; additionally, the modified fake good group was warned that faking could be detected and could reduce hiring chances. Multivariate analyses revealed significant differences on the Denial and Deviation subscales between the three conditions (p <0.01). The pattern of differences suggested that the threat of faking detection reduced faking. Potential application of these findings in personnel selection was discussed.     

Different practice effects for males and females by psychometric and chronometric mental-rotation tests

Gender differences in the psychometric mental-rotation test are usually larger than in the chronometric version. In both tests, practice effects appear for males and females. In this study, 104 participants (54 females, 50 males, age: 21.72 years) completed both tests in counterbalanced order. In the chronometric test, only males reacted and rotated significantly faster after the practice with the psychometric test. A strong practice effect independently of gender was found in the psychometric test and a gender difference in accuracy in favour of males. Males reported more confidence and females rated the perceived pressure of the time limit of the psychometric test higher than males. Consequently, differences in confidence after the practice could partly explain the gender differences in the improvements of reaction time and rotational speed. Practice from one mental-rotation test on the performance in another seems to be dependent of participants’ gender and the type of the test.     

人才甄选中的人格测验作假研究的深入与拓展

企业人才甄选情境下求职者很容易在人格测验中作假。至今有关作假的研究已包含作假的内涵、来源和识别等多个方面,也诞生了多种心理模型尝试解释作假产生的心理机制,如作假动机与作假能力交互作用理论、作假计划行为理论、作假整合模型、一般作假行为模型以及作假的VIE模型,为后续理论研究点明方向。此外,作假应用领域中新兴的网络人格测验作假受到关注,在此介绍网络与纸笔测验两种形式下,人格测验作假行为、作假意向的不同。     

Deterring malingered psychopathology: The effect of warning simulating malingerers

The utility of a warning to deter malingering on measures of personality and psychopathology was examined. Sixty‐seven first year psychology students were randomly assigned to one of three conditions: unwarned malingerers, warned malingerers, and controls. Participants in the two malingering groups were given a financial incentive to simulate believable psychological impairment. Warned malingerers received an additional warning that the tests could detect malingering and that detection would result in loss of course credit. Controls received standardized test instructions. It was hypothesized that the malingering incentive would be sufficient to induce malingering, but that a deterrence theory warning would have a subsequent deterrent effect. Between‐groups analyses indicated that the warning used in this study significantly altered test performance on the Personality Assessment Inventory (PAI) and revised Symptom Checklist 90 (SCL‐90‐R). Warned malingerers scored significantly lower (faked less) than unwarned malingerers on the majority of the psychopathology scales and frequently approximated control group performances. These results support the effectiveness of a warning to complement existing malingering detection methods. Copyright © 2009 John Wiley & Sons, Ltd.     

Statement Desirability Ratings in Forced-Choice Personality Measure Development: Implications for Reducing Score Inflation and Providing Trait-Level Information

Recent studies have produced mixed results regarding the effectiveness of forced-choice formats in reducing faking on personality measures. The present research examined a potentially important factor influencing forced-choice measure effectiveness—namely, the manner in which statement desirability ratings used in constructing forced-choice items are obtained—with the goal of clarifying previous findings and providing guidance for those interested in developing these measures. Two studies indicated that different desirability rating instructions produce substantially different forced-choice measures that are differentially effective in reducing score inflation and retaining trait-level information under faking conditions. These studies suggest that the manner in which statement desirability ratings are obtained may be an important consideration in forced-choice measure development.     

Feigning Schizophrenic Disorders on the MMPI--2: Detection of Coached Simulators

The Minnesota Multiphasic Personality inventory (MMPI) and, more recently, its revised version (the MMPI-2) have represented the "gold standard" in the psychometric assessment of malingering and other response styles. In this study, we provide a stringent test of the MMPI-2 validity indices and their ability to detect feigned schizophrenia in four groups of simulators (n = 72). Simulators were randomly assigned to one of four conditions: (a) coached on symptoms of schizophrenia, (b) coached on strategies for the detection of fakers, (c) coached on both symptoms and strategies, or (d) uncoached. Simulators were compared to subjects responding under an honest condition (n = 13) and a comparison group of schizophrenic inpatients (n = 37). We found knowledge of strategies alone allowed many simulators (i.e., one third or more, depending on the validity indices) to elude detection, In contrast, knowledge of the disorder appeared less useful to simulators in avoiding detection. Coaching on both strategies and symptoms was not as effective as strategies alone. Consistent with previous studies, uncoached simulators were detected with moderately high Ievels of accuracy.     

应聘情境下作假识别量表的开发

在应聘情境中, 被试容易对人格测验作假。应对作假的常用方法是采用社会称许性量表对作假直接测量, 再去校正和识别作假效应。但是采用社会称许性量表测量作假存在很多问题, 因而基于作假的特殊性质开发了《作假识别量表》。采用探索性因素分析证实了量表的单维性, 解释率为54.650%。概化理论检验表明测验信度较好, G系数为0.906, j系数为0.902。采用一个真实的应聘情境检验效度, 发现《作假识别量表》对作假更加敏感, 能够比较充分地测量作假。