Psychometric instruments

Wechsler Adult Intelligence Scale, 4th edition.

The WAIS renders an IQ and differentiates the achieved IQ into four comparable indexes, these being the Verbal Comprehension Index, the Perceptual Reasoning Index, the Working Memory Index and the Processing Speed Index. The four indexes are computed from performance on various subtests, each measuring specific neuropsychological abilities. These include abstract verbal reasoning, vocabulary, general knowledge, comprehension and judgement, perceptual reasoning, 3D constructional ability, nonverbal abstract problem solving, inductive reasoning, spatial perception and reasoning, visual abstract processing, problem solving, visual perception and analysis, quantitative and analogical reasoning, scanning speed, attention, concentration, mental speed and control, visual-motor coordination, motor speed, working memory and mathematical ability.


Wechsler Memory Scale, 4th edition.

The WMS renders several Memory index scores. These are the Immediate Memory Index, Delayed Memory Index, Auditory Memory Index, Visual Memory Index and the Visual Working Memory Index.


Boston Diagnostic Aphasia Examination.

The Boston Diagnostic Aphasia Examination assesses a broad range of language impairments that often arise as a consequence of organic brain dysfunction. The test evaluates various perceptual modalities such as auditory, visual, and gestural, processing functions, such as comprehension, analysis and problem-solving, and response modalities such as writing and articulation. This allows neuropsychological analysis and measurement of language-related skills and abilities from both ideographic and nomothetic bases.


Bender Visual-Motor Gestalt Test.

The Bender Visual Motor Gestalt test is a psychological assessment used to evaluate visual-motor functioning, visual-perceptual skills in individuals with brain damage and neurological deficits.


Memory for Intentions Test.

The most common memory problems involve failure of prospective memory-that is, forgetting to carry out a future activity, such as taking medication or making a phone call. The MIST uses eight real-world tasks to assess prospective memory, telling you how well an individual can monitor time, keep a planned activity in mind, and initiate appropriate action. It offers scores relating to Failure to respond, Substitution (responding verbally when action is required, or vice versa), Loss of content (remembering that a task needs to be completed at a given time, but not recalling the task), Loss of time (recalling the task correctly but forgetting the time) and other errors that falling outside the above categories.


Novaco Anger Scale.

The NAS assesses the role of anger in various psychological and physical conditions in clinical, community, and correctional settings. The NAS is composed of two parts measuring (a) how an individual experiences anger and (b) then identifies the kind of situations that induce anger in particular individuals. It produces a total ‘anger’ score based on subscales which measure cognitive elements of anger such as anger justification, rumination, hostile attitude and suspicion, calibrates arousal through description of anger intensity, duration, somatic tension, and irritability, evaluates the behavioural correlates of anger such as impulsive reactivity, verbal aggression, physical confrontation, and indirect expression, and also looks into anger regulation, i.e. the ability to regulate anger-engendering thoughts, effect self-calming, and engage in constructive behaviour when provoked.

The NAS also offers evaluation of the extent to which conditions or situations may provoke anger in an individual. These include disrespectful treatment, unfairness, frustration, annoying traits of others, and irritations.


Aggression Questionnaire.

The Aggression Questionnaire measures an individual's aggressive responses and his or her ability to channel those responses in a safe, constructive manner. It renders scores on several subscales, which include physical aggression, verbal aggression, anger, hostility and indirect aggression.


Delis-Kaplan Executive Function System.

The DKEFS comprehensively assesses the key components of executive functions believed to be mediated primarily by the frontal lobe through a set of nine subtests that may be applied collectively or individually.


NEO Personality Questionnaire.

The NEO is a comprehensive personality assessment based on the five-factor model of personality. The five personality factors, each with their constituent sub-factors are; (1) Neuroticism, which is based on assessment of Anxiety, Hostility, Depression, Self-Consciousness, Impulsiveness and Vulnerability to Stress, (2) Extraversion, based on assessment of Warmth, Gregariousness, Assertiveness, Activity, Excitement Seeking and Positive Emotion, (3) Openness to experience, based on assessment of Fantasy, Aesthetics, Feelings, Actions, Ideas and Values, (4) Agreeableness, based on assessment of Trust, Straightforwardness, Altruism, Compliance, Modesty and Tendermindedness and (5) Conscientiousness, which is based on assessment of Competence, Order, Dutifulness, Achievement Striving, Self-Discipline and Deliberation.


Millon Clinical Multiaxial Inventory.

The Millon Clinical Multiaxial Inventory is a psychological assessment tool intended to provide information on personality disorder and other forms of psychopathology, including specific disorders outlined in the DSM-IV. More specifically it assesses for Personality Disorders such as Schizoid, Avoidant, Depressive, Dependent, Histrionic, Narcissistic, Antisocial, Sadistic (Aggressive), Compulsive, Negativistic (Passive-Aggressive), Masochistic (Self-Defeating), Schizotypal, Borderline and Paranoid. Additionally it offers psychometric assessment of 10 Clinical Syndrome Scales, which include Anxiety, Somatoform, Bipolar: Manic, Dysthymia, Alcohol Dependence, Drug Dependence, Post-Traumatic Stress Disorder, Thought Disorder, Major Depression and Delusional Disorder.


Dementia Rating Scale.

The Dementia Rating Scale is an individually administered instrument designed to assess level of cognitive functioning for individuals with brain dysfunction or neurological deterioration. It assesses cognitive functioning on five subscales, these being Attention, Initiation-Perseveration, Construction, Conceptualization, and Memory.


Wide Range Achievement Test, 4th edition.

The Wide Range Achievement Test 4 (WRAT4) is an achievement test which measures an individual's ability to read words, comprehend sentences, spell, and compute solutions to math problems.


Thematic Apperception Test.

The Thematic Apperception Test, or TAT, is a projective psychological test. It is one of the most widely researched, taught, and used tests. It assists in the identification of psychological elements of which an individual might be unaware, reveals personality traits, explores emotional conflicts, motives, needs for achievement, and power, and assesses social problem-solving abilities.


Luria Nebraska Neuropsychological Battery.

The Luria-Nebraska Neuropsychological Battery is a standardized procedure for assessment of neuropsychological functioning. It consists of 11 subtests which assess motor functions, rhythm, tactile functions, visual functions, receptive speech, expressive speech, writing, reading, arithmetic, memory and intellectual processes. The performance on the items in each subtest is then used as a basis for deductive hypotheses with regards to the functional integrity of the examinee’s brain.


Behaviour Rating Inventory of Executive Function.

The BRIEF is a standardized measure that captures views of the executive functionality or self-regulation of adults in their everyday environments. It may be used for the assessment of adults (18-90 years of age) with a wide variety of developmental, systemic, neurological, and psychiatric disorders such as attention disorders, learning disabilities, autism spectrum disorders, traumatic brain injury, multiple sclerosis, depression, mild cognitive impairment, dementias, and schizophrenia. It offers scores in nine non-overlapping theoretically and empirically derived clinical scales that measure various aspects of executive functioning. These relate to an individual’s ability to inhibit behaviour, self-monitor, plan and organize, shift fluidly between tasks, initiate purposeful activity, monitor tasks, control emotional expression, and pay attention and maintain memory content.


Motor Free Visual Perception Test.

The MVPT-3 assesses an individual's visual-perceptual ability with no motor involvement needed to make a response. It is especially useful with those who may have learning, motor, or cognitive disabilities.


Hand Test.

The Hand Test is a simple projective technique widely used to measure action tendencies - particularly acting-out and aggressive behaviour. It assesses for tendencies to aggression, exhibition, communication, dependence, acquisition, tension, and withdrawal, as well as the feelings and motivations underlying these action tendencies. Furthermore, the Hand Test offers a brain injury score which is helpful in estimating the degree of functional impairment due to brain injury.