Performance You Can See & Hear

Transcription

1 Performance You Can See & Hear Exclusively from A S S E S S M E N T S

2 About the Performance Tests Evaluate attention disorders and neurological functioning with the Conners Continuous Performance Tests, now with both visual and auditory attention assessments. Use the Performance Test 3rd Edition (Conners CPT 3 ) and the Auditory Test of Attention (Conners CATA ) independently or together for an in-depth assessment of attention. Performance Tests Obtain an objective and detailed evaluation of attention using a taskoriented computerized assessment with the Performance Test 3rd Edition (Conners CPT 3 ). Performance Test 3rd Edition (Conners CPT 3 ) Auditory Test of Attention (Conners CATA ) Measure auditory attention to pinpoint processing deficits with the Auditory Test of Attention (Conners CATA ). A comprehensive evaluation with the introduction of an auditory attention test. Easy interpretation with new reports offering clear visuals and summaries. Trusted results with the most representative CPT normative samples collected. Diagnostic confidence with a refined measurement of attention. Ensure accuracy with normative samples normed on a variety of computer models and operating systems. Easy to understand clinical likelihood statements are based on T-scores and displayed as very high, high, moderate, or minimal. About the Performance Tests CONNERS CPT 3 CONNERS CATA Administration Time Paradigm 14 minutes 14 minutes Click on non-x, ignore X Click on warned high tone, ignore unwarned high tone Areas of Attention Measured Inattentiveness Impulsivity Sustained Attention Vigilance Inattentiveness Impulsivity Sustained Attention Auditory Laterality Auditory Mobility Normative Sample N=1400 N=1080

3 CPT 3 Performance Test 3 rd Edition Quick Reference MHS.com/CPT3 Age: 8+ Administration: Individual-completed How it works The Conners CPT 3 uses a task-oriented computerized system to visually assess attention-related problems in individuals aged 8 years and older. During the 14-minute, 360-trial administration, respondents are required to respond when any letter, except X, appears. By indexing the respondent s performance in areas of inattentiveness, impulsivity, sustained attention, and vigilance, the Conners CPT 3 can be a useful adjunct to the process of diagnosing Attention-Deficit/Hyperactivity Disorder (ADHD), as well as other psychological and neurological conditions related to attention. Administration time: 14 Minutes Formats: Software Qualifications: B Comprehensive Dimensions of Attention New scores and scoring algorithms have been developed to help assessors pinpoint the exact nature of the respondent s attention problems. The Conners CPT 3 uses both standardized and raw scores to determine not only the respondent s performance overall but also in four different aspects of attention: Inattentiveness, Impulsivity, Sustained Attention and Vigilance. Dimension Score Description Detectability (d ) Ability to discriminate between targets (non-x) and non-targets (X) Omissions Missed targets Inattentiveness Commissions Incorrect responses to non-targets Hit Reaction Time (HRT) HRT Standard Deviation (SD) Variabilty Response speed Response speed consistency Variabilty of response speed consistency Impulsivity HRT Commissions Perseverations The Most Representative CPT Normative Samples Collected Response speed Incorrect responses to non-targets Random or anticipatory responses (i.e., HRT < 100ms) The new normative sample consists of 1,400 cases and is representative of the United States (U.S.) population in terms of key demographic variables such as gender, race, geographical region, and (parental) education level. Sustained Attention Vigilance HRT Block Change Omissions by block Commissions by block HRT Inter-Stimulus Interval (ISI) Change Omissions by ISI Commissions by ISI Change in response speed across blocks of trials Missed targets by block Incorrect responses to non-targets by block Change in response speed at various ISIs Missed targets by ISI Incorrect responses to non-targets by ISI

4 CPT 3 Performance Test 3 Reliability Users can be confident that the Conners CPT 3 will yield consistent and stable scores across administrations. Internal Consistency One measure of a test s internal consistency is split-half reliability, which has been previously used to establish the reliability of other continuous performance tests. Split-half reliability estimates of the Conners CPT 3 scales were calculated for the normative and clinical samples. Results were very strong across all sccores, the median split-half reliability estimate was.92 for the norm samples, and.94 for the clinical samples (all correlations were significant, p <.001). These results indicate that the Conners CPT 3 demonstrates excellent internal consistency for both the normative and the clinical groups. Test-Retest Reliablilty Test-retest reliability refers to the consistency of scores obtained from the same respondent on separate occasions over a specified period of time. To estimate the test-retest reliability of the Conners CPT 3, a sample of 120 respondents from the general population completed the Conners CPT 3 twice with a 1- to 5-week interval between administrations. The median test-retest correlation was.67. These results suggest a good level of test-retest reliability. Validity Discriminative Validity Discriminative validity pertains to an instrument s ability to distinguish between relevant participant groups (i.e., the test s ability to differentiate between clinical and non-clinical groups). In order to conduct discriminative validity analyses, Conners CPT 3 data were collected during the standardization process from 346 children and adults who had an existing ADHD diagnosis. Conners CPT 3 scores from this ADHD sample were compared to a matched sample from the general population. Results indicated that significant differences were found between the ADHD sample and the matched general population sample on most measures with small to moderate effect sizes (d = 0.10 to 0.49). As expected, the ADHD sample performed more poorly (i.e., they had higher scores on the Conners CPT 3). In particular, the ADHD sample had lower d scores, indicating more difficulty in distinguishing between relevant stimuli and distractors. Similarly, the ADHD sample made a greater number of errors (i.e., they had higher percentages of Omissions, Commissions and Perseverations than did the general population sample) and showed more variability in their responses overall (i.e., higher HRT SD scores) and across subblocks (i.e., higher Variability scores) compared to the matched sample of general population. The responses of the ADHD sample were also affected more by changes in block and ISI (i.e., higher HRT Block Change and HRT ISI Change scores). Incremental Validity Please see reverse for Reliability & Validity for Conners CATA Users can be assured that the Conners CPT 3 will help detect attention deficits and differentiate Clinical from Non-Clinical Cases. Another approach in establishing the Conners CPT 3 s validity is to show how it works together with other measures of similar constructs in the assessment of attention problems. To assess such validity, samples were collected in which cases were scored on the Conners CPT 3 and another measure of attention. Specifically, in a sample of 112 non-clinical and ADHD youths, parent-reports on the Conners 3rd Edition (Conners 3-P; Conners, 2008) were collected in addition to their scores on the Conners CPT 3. In a second sample of 137 non-clinical and ADHD adults, self-reports on the Conners Adult ADHD Rating Scales (CAARS; Conners, Erhardt, & Sparrow, 1999) were collected in addition to their scores on the Conners CPT 3. Logistic regressions were conducted in order to determine how well scores from the Conners CPT 3 improve the diagnostic efficacy of the rating scales in predicting group membership into ADHD or general population groups. For youth, when the Conners 3-P and Conners CPT 3 scores were considered together, there was an overall correct classification rate (i.e., the ability to accurately predict group membership) of 88.4%, sensitivity (i.e., the ability to correctly detect ADHD cases) of 89.5%, and specificity (i.e., the ability to correctly detect general population cases) of 87.3%. These values were 4.5%, 3.5%, and 5.5%, respectively, higher than when the rating scale was used on its own. For adults, when the CAARS and Conners CPT 3 scores were considered together, the overall correct classification rate was 92.7%, sensitivity was 73.1%, and specificity was 97.3%. These values were 3.6%, 7.7%, and 2.7%, respectively, higher than when the rating scale was used on its own. These results indicate that adding the Conners CPT 3 to scores from rating scales increases the ability to predict group membership. Classification Statistic Conners 3-P Conners 3-P & Conners CPT 3 CAARS CAARS, & Conners CPT 3 Overall Correct Classification (%) Sensitivity (%) Specificity (%)

5 CATA Auditory Test of Attention Quick Reference MHS.com/CATA Age: 8+ Administration: Individual-completed Administration time: 14 Minutes Formats: Software Qualifications: B How it works The Conners CATA assesses auditory processing and attention-related problems in individuals aged 8 years and older. During the 14-minute, 200-trial administration, respondents are presented with high-tone sounds that are either preceded by a low-tone warning sound (warned trials) or played alone (unwarned trials). Respondents are instructed to respond only to high-tone sounds on warned trials, and to ignore those on unwarned trials. By indexing the respondent s performance in areas of inattentiveness, impulsivity, sustained attention, auditory laterality, and auditory mobility, the Conners CATA can be a useful adjunct to the process of diagnosing Attention-Deficit/Hyperactivity Disorder (ADHD) and other neurological conditions related to auditory attention. Comprehensive Dimensions of Attention The scores and scoring algorithms help assessors pinpoint the exact nature of the respondent s attention problems. The Conners CATA uses both standardized and raw scores to determine not only the respondent s performance overall but also in five different aspects of attention: Inattentiveness, Impulsivity, Sustained Attention, Auditory Laterality and Auditory Mobility. The Most Representative CPT Normative Samples Collected The normative sample consists of 1,080 cases and is representative of the United States (U.S.) population in terms of key demographic variables such as gender, race, geographical region, and (parental) education level. Dimension Score Description Detectability (d ) Ability to discriminate targets (warned high tone) from non-targets (unwarned high tone) Inattentiveness Omissions Commissions Hit Reaction Time (HRT) HRT Standard Deviation (SD) Missed targets Incorrect responses to non-targets Response speed Response speed consistency Impulsivity Sustained Attention Auditory Laterality Auditory Mobility HRT Commissions Perseverative Commissions HRT Block Change Omissions by block Commissions by block HRT & Hits% Left vs. Right Ear HRT & Hits% on Switch vs. Non Switch Trials Response speed Incorrect responses to non-targets Incorrect responses before targets Change in response speed across blocks of trials Missed targets by block Incorrect responses to non-targets by block Preference for left vs. right targets Ability to switch attention from one ear to the other Race x (Parental) Education x Region: Conners CATA Normative Sample

6 CATA Auditory Test of Attention Reliability Users can be confident that the Conners CATA will yield consistent and stable scores across administrations. Internal Consistency One measure of a test s internal consistency is split-half reliability, which has been previously used to establish the reliability of other continuous performance tests. Split-half reliability estimates of the Conners CATA scales were calculated for the normative and clinical samples. Results were very strong across all scores, the median split-half reliability estimate was.95 for the norm and clinical samples (all correlations were significant, p <.001). These results indicate that the Conners CATA demonstrates excellent internal consistency for both the normative and the clinical groups. Test-Retest Reliability Test-retest reliability refers to the consistency of scores obtained from the same respondent on separate occasions over a specified period of time. To estimate the test-retest reliability of the Conners CATA, a sample of 69 respondents from the general population completed the Conners CATA twice with a 1- to 4-week interval between administrations. The median test-retest correlation was.64. These results suggest a good level of test-retest reliability. Validity Please see reverse for Reliability & Validity for Conners CPT 3 Users can be assured that the Conners CATA will help detect attention deficits and differentiate Clinical from Non-Clinical Cases. Discriminative Validity Discriminative validity pertains to an instrument s ability to distinguish between relevant participant groups (i.e., the test s ability to differentiate between clinical and non-clinical groups). In order to conduct discriminative validity analyses, Conners CATA data were collected during the standardization process from 193 children and adults who had an existing ADHD diagnosis. Conners CATA scores from this ADHD sample were compared to a matched sample from the general population. Results indicated that differences were found between the ADHD sample and the matched general population sample on most measures with small to moderate effect sizes (d = 0.10 to 0.63). As expected, the ADHD sample demonstrated poorer performance (i.e., they had higher scores on the Conners CATA). In particular, the ADHD sample had lower d scores, indicating that they had more difficulty in distinguishing between target trials and non-target trials than did the general population sample. Similarly, the ADHD sample made a greater number of errors (i.e., they had higher percentages Commissions and Perseverative Commissions than did the general population sample) and showed more variability in their responses (i.e., higher HRT SD scores, when compared to the matched general population sample). Incremental Validity Another approach in establishing the Conners CATA s validity is to show how it works together with other measures of similar constructs in the assessment of attention problems. To assess such validity, samples were collected in which cases were scored on the Conners CATA and other measures of attention. Specifically, in a sample of 112 youth, parent-reports on the Conners 3rd Edition (Conners 3-P) were collected in addition to their scores on the Conners CATA and the Conners CPT 3. Logistic regressions were conducted in order to determine how well scales from the Conners CATA improve the diagnostic efficacy of the Conners 3-P and Conners CPT 3 in predicting group membership into ADHD or general population groups. Results are presented in the table below. When the Conners 3-P, Conners CPT 3, and Conners CATA scores were considered together, there was an overall correct classification rate (i.e., the ability to accurately predict group membership) of 93.8%, sensitivity (i.e., the ability to correctly detect ADHD cases) of 94.7%, and specificity (i.e., the ability to correctly detect general population cases) of 92.7%. These values were 9.9%, 8.7%, and 10.9%, respectively, higher than when the rating scale was used on its own. Furthermore, the Conners CATA added increased classification accuracy over and above the Conners 3-P and Conners CPT 3. Classification Statistic Conners 3-P Conners 3-P & Conners CATA Conners 3-P & Conners CPT 3 Conners 3-P, Conners CPT 3 & Conners CATA Overall Correct Classification (%) Sensitivity (%) Specificity (%)

7 New Easy to Read Reports: Assessment/ Reports Available Assessment Report Provides detailed results from a single administration. Progress Progress Report Provides an overview of change over time by combining and comparing results of up to four administrations. The computer-generated scoring reports have been designed to guide assessors through each step of the recommended interpretation process. Updated with an easy to follow look and feel. Review the data more efficiently with clear visuals. Interpretive text to complement and narrate the wealth of data. Easy to understand clinical likelihood statements are based on T-scores and displayed as very high, high, moderate, or minimal. New to the Conners CPT 3 New normative data representative of the United States population census Rigorously tested on a variety of computer models and operating systems to ensure consistency across platforms Improved test sensitivity for impulsivity problems: the paradigm was updated from 10% non-targets (X) to 20% non-targets (X) Enhanced look and feel of the program designed to reduce glare and reflection Updated dimensions of attention measured include Inattentiveness, Impulsivity, Vigilance, and Sustained Attention New, concise clinical likelihood statements based on T-scores

8 Order by May 1st to Save 10% on all CPT Combo Kits! CODE Performance Tests (Conners CPT) COMBO CPT302 ** Conners CPT Combo Unlimited Kit - (CPT Manual, CPT Combo Software, Unlimited CPT 3 & CATA Uses) $1,599 CPT304 ** Conners CPT Combo Pay-Per-Use Kit - (CPT Manual, CPT Combo Software, 10 CPT 3 Uses & 10 CATA Uses) $1,199 CPT301 Conners CPT Manual $ 99 CODE Performance Test 3 (Conners CPT 3) CPT3 CPT303 CPT305 Conners CPT 3 Unlimited Kit - (CPT Manual, CPT 3 Software, Unlimited CPT 3 uses) $1,199 Conners CPT 3 Pay-Per-Use Kit - (CPT Manual, CPT 3 Software, 10 CPT 3 uses) $999 CPT306 Conners CPT 3 Uses - (Qty of 10) $ 100 CODE Auditory Test of Attention (Conners CATA) CATA CATA03 Conners CATA Unlimited Use Kit - (CPT Manual, CATA Software, Unlimited CATA Uses) $399 CATA05 Conners CATA Pay-Per-Use Kit - (CPT Manual, CATA Software, 10 CATA uses) $299 CATA06 Conners CATA Uses - (Qty of 10) $100 To place your order, contact an MHS Representative today by phone, or online: USA: Tel: CAN: Tel: customerservice@mhs.com A S S E S S M E N T S MHS.com/CPT3 MHS.com/CATA