A Short Course in Clinical Assessment

A comparison was made of the original MMPI validity scales (L, F, K, F - with validity scares devised subsequently (TR, Ca, Ds, Mp, Ws - Wo) to determine which scales, the older or newer, were better, either alone or combined, in detecting fake-good, fake-bad, and careless responding. This was accomplished by having groups of subjects answer the MMPI first under standard conditions and then, 1 week later, under one of the falsifying conditions. A group of 40 psychiatric patients responded under standard and then fake-good conditions; a group of 40 university students responded under standard and then fake-bad conditions; and a group of 20 students responded under standard and then fake-careless conditions. Results indicate that both the traditional and newer validity indices were equally good at detecting fake-good responding. None of the indices was adequate in detecting careless responses. We conclude, as a consequence of this study, that the newer scales perform a clinically useful function when faking good is suspected on the MMPI.     

Perfectionism and social desirability: Students report increased perfectionism to create a positive impression

Because previous studies examining correlations between perfectionism and social desirability produced inconclusive findings, this study used an experimental approach examining the perceived social desirability of perfectionism. 117 university students were randomly assigned to three conditions (fake-good, standard, and fake-bad instructions) and then completed measures of self-oriented, other-oriented, and socially prescribed perfectionism. Results showed that all three forms of perfectionism were perceived as socially desirable. Self-oriented perfectionism showed a strong linear trend across the conditions: Students reported significantly higher self-oriented perfectionism in the fake-good condition, and significantly lower self-oriented perfectionism in the fake-bad condition compared to standard instructions. Other-oriented perfectionism showed the same linear trend, albeit weaker, and only fake-good and fake-bad conditions differed significantly. Socially prescribed perfectionism too showed a significant linear trend: Students reported higher levels in the fake-good condition compared to standard instructions and fake-bad condition, with no significant difference between the latter conditions. The findings indicate that, in educational settings, students perceive perfectionism—including maladaptive forms such as socially prescribed perfectionism—as socially desirable.     

Rationally developed fake-good and fake-bad scales for the Jesness Inventory

Develops two validity scales for the Jesness Inventory using a rational approach: a fake-good scale, Lie (L); and a fake-bad scale, Overt Symptomatology (OS). Effectiveness was assessed using 293 male delinquents classified as fake-good, fake-bad, or honest based on a matched-pair MMPI-A. L was moderately effective in detecting the fake-good set, and OS tentatively effective in detecting the fake-bad set. Both correlated well with their MMPI-A counterparts. Sensitivity, specificity, positive predictive power, negative predictive power, and overall effectiveness data were reported. The L scale and OS scale were related to race but differences were less than 1 raw score point. L was unrelated to age. OS was related to age, with younger children showing more willingness to admit to symptomatology. Age-based modified T-score norms were developed for the newly constructed scales using 1142 male and 360 female delinquents. ages 13–18.     

The predictive validity of subtle and obvious empirically derived psychological test items under faking conditions

The relative contributions of subtle and obvious item endorsements to the prediction of a relevant criterion were assessed under faking and control ("honest") conditions. The MMPI and a nonconformity questionnaire were first administered to 100 male college students. Items on the Pd scale and 101 additional MMPI items that correlated significantly with the nonconformity questionnaire were then rated by 38 other male college students for apparent relationship to psychopathology. From these ratings, a scale (designated PdX) was constructed, which consisted of 21 subtle and 21 obvious items. After a third group of 98 male college students completed the nonconformity questionnaire, they were asked to respond to the items of the Pd and PdX subscales under control, fake-good, and fake-bad instructions. Significant correlations between the nonconformity scale and certain PdX and Pd subscales were found only for the control group. Implications for test construction and for clinical interpretation under faking conditions are discussed.     

Assessing the person reliability of an individual MMPI protocol

This study investigated various measures commonly employed to assess the person reliability of an individual Minnesota Multiphasic Personality Inventory (MMPB protocol. Specifically, relationships among indices of person reliability and the standard MMPI validity scales were examined using the responses of 82 subjects who completed the MMPI on two occasions separated by 1 week. Person reliability indices were based on within-occasion responses to identical and to psychologically similar items, and on three across-occasion response consistency measures. The validity scales, namely, the L, F, K, and Cannot Say scales, showed higher test-retest stability than the within-occasion person reliability indices. Further, the validity scales and person reliability indices appeared to reflect multiple facets of dependable responding. Interestingly, an individual's tendency to change responses to MMPI items from the test to the retest was significantly predictable. Clinical implications of these findings were derived.     

Detecting and Discriminating Between Random Responding and Overreporting on the MMPI-A

The utility of traditional validity scales in detecting random responding and overreporting on the MMPI-A and in discriminating between these two response sets was investigated in a sample of 89 clinical and nonclinical adolescents aged 14 to 17 years. The overreporting group consisted of 24 nonclinical adolescents instructed to complete the MMPI-A as if they were trying to create an impression of psychological disturbance. The random group included 20 nonclinical adolescents instructed to complete the MMPI-A answer sheet without access to the test booklet. Clinical (n = 20) and nonclinical (n = 25) standard groups completed the MMPI-A under the standard instructions. Results showed that validity scales designed to detect random responding and overreporting on the MMPI-A were quite effective in doing so. Significant differences between groups and high classification rates were noted. In addition, the VRIN scale was found to be sensitive only to random responding, whereas Scale F was sensitive to both random responding and overreporting. Scale L also was found to be sensitive to random responding, and support for the utility of the F - K index in identifying overreported adolescent profiles was obtained.     

Low-End Specificity of Four Depression Measures: Findings and Suggestions for the Research Use of Depression Tests

Past research has found that very low scorers on the Beck Depression Inventory (BDI) tend to respond in a fake-good manner on the Minnesota Multiphasic Personality Inventory (MMPI) validity scales. This finding was interpreted as evidence of poor low-end specificity. This study replicated and extended this work by evaluating the low-end specificity of four popular depression measures. The evidence of problems with low-end specificity was strong for the BDI and marginal for the Profile of Mood States depression subscale. Interestingly, MMPI scores in the normal range were associated with fake-good responding, whereas very low and high scores were not. There was no evidence of an association between fake-good responding and scores on Exner's Depression Index for the Rorschach. Implications of these findings and guidelines for dealing with problems with low-end specificity in research are discussed.     

The detection of fake-bad and fake-good responding on the Millon Clinical Multiaxial Inventory III

The purpose of this study was to examine the effectiveness of the 3 Modifying Indices of the Millon Clinical Multiaxial Inventory III (MCMI-III) in the detection of fake-bad and fake-good responding. The sample consisted of 160 psychiatric outpatients. Paired t tests were performed to examine the effects of instructional set (faking vs. standard instructions). As hypothesized, instructional set produced significant differences on Scale X, Scale Y, and Scale Z in both fake-bad and fake-good analyses. Single-scale cutoff scores were as effective as multiple-scale cutoffs. The overall rates of successful classification indicated moderate effectiveness and utility of the MCMI-III Modifying Indices in the detection of dissimulated responding. When base rates were varied to more closely approximate a general clinical population, overall classification accuracy increased, but identification of faking (positive predictive power) gradually eroded with declining base-rate estimates. At lower base rates of faking, MCMI-III standard cutoff points yielded a high number of false positives.     

Effect of altered instructions on the MMPI-2 profiles of college students who are not motivated to distort their responses

Research has shown that when the MMPI-2 (Butcher, Dahlstrom, Graham, Tellegen, & Kaemmer, 1989) is administered with instructions designed to make people aware of the validity indexes and when people are encouraged to respond honestly rather than invalidate the test through defensiveness, their scores on validity scales suggest a more candid responding. Before such modified administration procedures can be broadly used to increase the validity of the MMPI (Hathaway & McKinley, 1943) profiles, it is necessary to have more information about the effect of the altered instructions on test performance of people in general. This study involved administering the MMPI-2 to a group of 218 "normals" (college students) with instructions that differed from traditional instructions. Specifically, the test instructions were altered to explain more about the test and the presence of validity scales to apprise participants that disingenuous responding can be detected. The responses of college students taking the test under altered instructions were compared with those of a similar sample of 150 college students who took the test under standard instructions. Although under altered conditions there was a statistically significant tendency for measures assessing defensiveness (L, K, and S) to be lower for some participants (women but not men), the differences were trivial. Modified instructions made little practical difference in test performance when people who were not motivated to deceive on the test were informed of the presence of validity checks on the test.     

Effect of Altered Instructions on the MMPI-2 Profiles of College Students Who Are Not Motivated to Distort Their Responses

Research has shown that when the MMPI-2 (Butcher, Dahlstrom, Graham, Tellegen, & Kaemmer, 1989) is administered with instructions designed to make people aware of the validity indexes and when people are encouraged to respond honestly rather than invalidate the test through defensiveness, their scores on validity scales suggest a more candid responding. Before such modified administration procedures can be broadly used to increase the validity of the MMPI (Hathaway & McKinley, 1943) profiles, it is necessary to have more information about the effect of the altered instructions on test performance of people in general. This study involved administering the MMPI-2 to a group of 218 "normals" (college students) with instructions that differed from traditional instructions. Specifically, the test instructions were altered to explain more about the test and the presence of validity scales to apprise participants that disingenuous responding can be detected. The responses of college students taking the test under altered instructions were compared with those of a similar sample of 150 college students who took the test under standard instructions. Although under altered conditions there was a statistically significant tendency for measures assessing defensiveness (L, K, and S) to be lower for some participants (women but not men), the differences were trivial. Modified instructions made little practical difference in test performance when people who were not motivated to deceive on the test were informed of the presence of validity checks on the test.     

Positive impression management and its influence on the Revised NEO Personality Inventory: a comparison of analog and differential prevalence group designs

Participants (n = 22) completed the Revised NEO Personality Inventory (NEO PI-R) as part of an authentic job application. Protocols produced by this group were compared with "analog" participants (n = 23) who completed the NEO PI-R under standard instructions and again under instructions designed to mimic the test-taking scenario of the job applicants (the "fake-good" condition). Participants completing the NEO PI-R under fake-good instructions and the job applicants scored lower on the Neuroticism and higher on the Extraversion scales than did the participants responding under standard instructions. Analog participants in the fake-good condition scored higher on the Extraversion and lower on the Agreeableness scales than did the job applicants. These results suggest that outcomes from analog designs are generalizable to real-world samples where response dissimulation is probable.     

Predicting the Completion of an Integrative and Intensive Outpatient Chronic Pain Treatment With the Personality Assessment Inventory

The X-zero distinction has been used as the operational definition of MMPI item subtlety in previous research. A consistent finding has been that the X items, which are obvious in terms of pathological content, can be faked whereas the more subtle zero items cannot be faked. The present study examined the relationship between instructional sets and endorsement patterns, using a more refined, comprehensive measure of item subtlety. Sixty (30 male, 30 female) subjects completed two MMPI protocols, one under a standard instructional set and the other under either a fake-good or fake-bad response set. Order of administration and sex were counterbalanced. In general, the findings for the subtle-obvious dimension paralleled the previous findings with the X-zero distinction. Endorsement of obvious items was a direct function of instructional set, whereas endorsement of subtle items was inversely related to instructional set. Because subtle items did not appear to measure the constructs for which they had been originally intended, other uses for subtle items were discussed.     

Detecting fake-bad MMPI-A profiles

This study examined the extent to which the validity scales of the Minnesota Multiphasic Personality Inventory-Adolescent (MMPI-A; Butcher et al., 1992) could identify adolescents who were faking-bad. This study also examined the extent to which the validity scales could differentiate between nonclinical adolescents instructed to fake-bad and both clinical and nonclinical adolescents who received standard instructions. Participants were 58 male and 80 female high school students and 58 male and 80 female adolescents from clinical settings. Results indicated that the mean profiles resembled those previously reported for adults on the MMPI (Graham, 1987) and MMPI-2 (Graham, Watts, & Timbrook, 1991) and for adolescents on the original MMPI (Archer, Gordon, & Kirchner, 1987). Accurate identification of students who were faking-bad was achieved. It was possible to differentiate between the clinical adolescents and nonclinical adolescents who were faking, and it was possible to differentiate between nonclinical adolescents who were faking and nonclinical adolescents with standard instructions; however, different cutoff scores were needed for these two discriminations. Optimal cutoff scores were presented.     

Association of fake-good MMPI-2 profiles with low Beck Depression Inventory scores

Seventy-nine adolescent mothers (mean age = 18.1 years) were administered the Beck Depression Inventory (BDI) and three validity scales (L, F, and K) of the Minnesota Multiphasic Personality Inventory 2 (MMPI-2). The aim was to determine whether low-BDI mothers were "faking good," or denying their depression. The adolescent mothers were assigned to a low-BDI group (scores = 0, 1, 2), a nondepressed group (scores = 3-9), or a depressed group (scores > or = 13). The depressed group had higher F (Symptom) scale scores than did the nondepressed group, which in turn had higher scores than did the low-BDI group. The low-BDI group, in contrast, had more fake-good profiles than did the two other groups. Discriminant analyses indicated that 90% of the fake-good profiles could be classified correctly based on BDI and K (Defensiveness) scale scores. These data suggest the need for further assessment when individuals have extremely low BDI scores.     

The Impact of Exposure to Internet-Based Information About the Rorschach and the MMPI–2 on Psychiatric Outpatients’ Ability to Simulate Mentally Healthy Test Performance

To examine the impact of Internet-based information about how to simulate being mentally healthy on the Rorschach (Exner, 2003) and the MMPI–2 (Butcher, Dahlstrom, Graham, Tellegen, & Kaemmer, 1989), 87 psychiatric outpatients completed the tests under 4 conditions: uncoached and Internet-coached outpatients under faking healthy instructions (faking patients and Internet-faking patients) and patients and nonpatients under standard instructions (standard patients and standard nonpatients). On the Rorschach, faking patients and Internet-faking patients did not manage to portray healthy test performance and, like standard patients, revealed a significantly greater number of perceptual and cognitive disturbances than standard nonpatients. Faking patients scored in the psychopathological direction on most variables. Internet-faking patients produced constricted protocols with significantly higher F% (57%) and lower use of provoking and aggressive contents than the other groups. On the MMPI–2, faking patients and Internet-faking patients were able to conceal symptoms and, like standard nonpatients, scored in the normal range on the clinical scales. The validity scale L successfully detected the faking patients and the Internet-faking patients, whereas the F scale only distinguished the Internet-faking patients and K only the faking patients. We conclude that Internet-based information could threaten test validity.     

Underreporting of psychopathology on the MMPI-2: a meta-analytic review

Meta-analytic techniques were applied to studies of the MMPI-2 in which participants given standard instructions were compared with participants instructed or believed to have been underreporting. Traditional and supplementary indices of underreporting yielded a mean effect size of 1.25, suggesting that underreporting respondents differ from those responding honestly by a little more than 1 standard deviation, on the average, on these scales. Analyses of classification accuracy suggested that several scales are moderately effective in detecting underreporting, although accuracy decreases if participants have been coached about validity scales. Base rates of defensive responding in relevant populations are reviewed, and methodological issues, including research designs, coaching, and incremental validity of supplementary underreporting scales, are discussed.     

Detection of Random Responding on the MMPI--A

We examined random responding on the MMPI-A in 106 adolescents from the general population. Participants were asked to report on the frequency, location, and reasons for any random responses occurring during a standard administration of the MMPI-A. Relationships between self-reported random responding and validity indices (F1, F2, F, and Variable Response Inconsistency [VRIN] scale) were examined. In addition, each participant was randomly assigned to 1 of 5 groups, with each group completing an assigned portion (0, 25%, 50%, 75%, or 100%) of an MMPI-A answer sheet without access to the test booklet, and the utility of the validity scales in discriminating standard protocols from all or partially random protocols was investigated. Most adolescents acknowledged one or more random responses correlated significantly with F but not VRIN. Validity scales were sensitive to all or partially random protocols, and produced high classification rates when discriminating among groups.     

Profile validity standards for MMPI and MMPI-2 F scales

Although numerous indices of validity have been developed for the MMPI and MMPI-2, interest in the F scale and its variants continues, especially among practicing clinicians. The use of the binomial for assessing standards for random answering and possibly for judgments of malingering offers another approach for the interpretation of F-scale scores. The theoretical binomial distribution and Monte Carlo data are in accord. Cut-off scores of 24 for the MMPI and 23 for the MMPI-2 suggest random responses, and scores of 40 and 37, respectively, suggest clinical interpretation rather than randomness of responding.     

Detection of random responding on the MMPI-A

We examined random responding on the MMPI-A in 106 adolescents from the general population. Participants were asked to report on the frequency, location, and reasons for any random responses occurring during a standard administration of the MMPI-A. Relationships between self-reported random responding and validity indices (F1, F2, F, and Variable Response Inconsistency [VRIN] scale) were examined. In addition, each participant was randomly assigned to 1 of 5 groups, with each group completing an assigned portion (0, 25%, 50%, 75%, or 100%) of an MMPI-A answer sheet without access to the test booklet, and the utility of the validity scales in discriminating standard protocols from all or partially random protocols was investigated. Most adolescents acknowledged one or more random responses correlated significantly with F but not VRIN. Validity scales were sensitive to all or partially random protocols, and produced high classification rates when discriminating among groups.     

The predictive capacity of the MMPI-2 and PAI validity scales and indexes to detect coached and uncoached feigning

The objective of this study was to examine the relative effectiveness of the Minnesota Multiphasic Personality Inventory-2 (MMPI-2) and the Personality Assessment Inventory (PAI) validity scales and indexes to detect malingering. Research participants were either informed (coached) or not informed (uncoached) about the presence and operating characteristics of the validity scales and instructed to fake bad on both the MMPI-2 and PAI. The validity scale and index scores produced by these research participants were then compared to those scores from a bona fide sample of psychiatric patients (n = 75). Coaching had no effect on the ability of the research participants to feign more successfully than those participants who received no coaching. For the MMPI-2, the Psychopathology F scale, or F(p), proved to be the best at distinguishing psychiatric patients from research participants instructed to malinger, although the other F scales (i.e., F and Fb) were also effective. For the PAI, the Rogers Discriminant Function index (RDF) was clearly superior to the other PAI fake-bad validity indicators; neither the Negative Impression Management scale nor Malingering Index were effective at detecting malingered profiles in this study. Overall, RDF proved to be marginally superior to F and F(p) in distinguishing MMPI-2 and PAI protocols produced by research participants asked to malinger and psychiatric patients. Both the RDF and the F and F(p) scales, however, were able to increase the predictive capability of one another.