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Psychometrics

Attentional Blink Task

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Attentional blink (AB) is a phenomenon observed in rapid serial visual presentation. When presented with a sequence of visual stimuli in rapid succession, subjects will often fail to detect a second salient target occurring in succession if it is presented between 200–500 ms after the first one.

Career Search

Download Career Search TRIAL
Technical Manual
NOC Career Handbook-Introduction and Glossary
National Occupational Classification
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Career Search is transferable skills analysis software based on the National Occupational Classification Career Handbook. It includes aptitude, interest, education requirements, and physical requirements, among other qualifiers, for over 25,000 job titles. Career Search is used by program planners, labour economists, rehabilitation professionals, and others in the health and social services fields, as well as by insurance companies and litigators.

Flexible Aptitude Assessment System

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The Flexible Aptitude Assessment System (FAAS) provides a method of deriving scores for the aptitude dimensions used by the National Occupational Classification Career Handbook and Career Search, using a "flexible battery" approach. The FAAS provides percentile scores and norm-referenced categorical scores (i.e., 1 to 5) for the following aptitudes; G-General Learning Ability, V-Verbal Aptitude, N-Numerical Aptitude, S-Spatial Aptitude, P-Form Perception, Q-Clerical Perception, K-Motor Coordination, F-Finger Dexterity, M-Manual Dexterity. The FAAS has 2 forms. Form A includes a "default" set of subtests from test batteries widely used in the assessment of work-related abilities including the Wechsler Adult Intelligence Scale, Wide Range Achievement Test, finger tapping test, grooved pegboard test. Form B permits test users to derive aptitude scores from their prefered batteries.

Functional Mapping Suite

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The Functional Mapping Suite includes computer-based cognitive and sensory tasks that activate specific brain structures (e.g., magnocellular and parvocellular layers of the lateral geniculate nucleus), and systems (e.g., cognition, arousal). The tasks themselves can be used to evaluate experimentally induced changes in cognition such as drug-induced cognitive enhancement or impairment, or changes in the speed/accuracy of decision making under varying levels of distraction. The tasks can also be used to evaluate experimentally induced changes in brain function in studies involving medical imaging (i.e., MRI, SPECT) or electrical source analysis (i.e., EEG)

Memory Malingering Task

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The Memory Malingering Task is a forced-choice recognition memory task used to evaluate the validity of a patient's effort on behavioral measures of attention, concentration, and memory.

Pain Symptom Ratings, Version 2

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The Pain Symptom Ratings provides an independent, reliable, and valid means of predicting treatment compliance and outcome in studies of treatment safety and efficacy. It also allows for unbiased measurement of the legitimacy of self-reported pain severity in forensic settings, and of psychological determinants of pain severity and disability in clinical populations.

PSR subscales were empirically derived from statistical analysis of the symptoms of over 7500 chronic pain patients ranging in age between 18 and 70 years. The PSR is composed of 120 symptoms with subtle psychological content reflecting anxiety, depression, unproductive thinking, symptom preoccupation, somatization, assumption of the sick role, addiction risk, sense of entitlement, and symptom magnification/malingering, among others.

Sustained Target Detection Task

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The Sustained Target Detection Task is a psychological test that measures a person's sustained and selective attention. Sustained attention is the ability to maintain a consistent focus on some continuous activity or stimuli. Impairment in this ability is associated impulsivity. Selective attention is the ability to focus on relevant stimuli while ignoring others. This skill is associated with distractibility. The STDT provides the following 4 scores for initiation and inhibition conditions:

Correct Detection: This indicates the number of times the client responded to the target stimulus. Higher rates of correct detections indicate better attentional capacity.
Reaction Times: This measures the amount of time between the presentation of the stimulus and the client's response.
Omission Errors: This indicates the number of times the target was presented, but the client did not respond/click the mouse. High omission rates indicate that the subject is either not paying attention (distractibility) to stimuli or has a sluggish response.
Commission Errors: This score indicates the number of times the client responded but no target was presented. A fast reaction time and high commission error rate points to difficulties with impulsivity. A slow reaction time with high commission and omission errors, indicates inattention in general.

Test of Spatial Perseveration

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The Test of Spatial Perseveration is a neuropsychological test of "spatial set-shifting", i.e., the ability to display flexibility in spatial learning in the face of changing schedules of reinforcement. The TSP is the spatial equivalent to the Wisconsin Card Sorting Task. The task is believed to activate hippocampal/prefrontal circuits of the non-dominant hemisphere.

Visual Search with Peripheral Visual Distraction Task

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Instructions

The Visual Search with Peripheral Visual Distraction Task is a common visual search task in which the subject searches for a target among a field of distracters. The target varies in discriminability from the field (e.g., finding a B or X among a field of P's). The field varies in density and includes high contrast peripheral visual distraction conditions.

Whissell's Dictionary of Affect in Language

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Technical Manual
Sample Analysis
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Whissell's Dictionary is a computer program that analyzes the emotional content of language (i.e., text). The program analyzes words along the dimensions of Pleasantness, Activation and Imagery, and also analyzes word frequency (i.e., how common the word is in the English language) and sentence structure (e.g., sentence length, use of exclamation or question marks, etc.).


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