A block design test is a subtest on many IQ test batteries used as part of assessment of human intelligence. It is thought to tap spatial visualization ability and motor skill. The test-taker uses hand movements to rearrange blocks that have various color patterns on different sides to match a pattern. The items in a block design test can be scored both by accuracy in matching the pattern and by speed in completing each item. [2]
David Wechsler adapted a block design subtest for his Wechsler-Bellevue test, the predecessor of his WAIS (Wechsler Adult Intelligence Scale), from the Kohs block design test developed in 1920 at Stanford University by Samuel Calmin Kohs. A later revision of the Kohs test by Hutt incorporated the time taken to complete each item into the scoring of the test. [3] Wechsler followed that practice in making both accuracy and speed factors in scoring the test.
Good performance on the block design test is indicative of appropriate functioning of the parietal and frontal lobes. Head injury, Alzheimer's disease, and stroke can severely reduce the performance of an individual on the block design test. [4] Additional evidence suggests impairment in block design performance among schizophrenic and bipolar disorder patient populations, though this represents only preliminary findings. [5] [6]
The block design test is also a relatively accurate measure of spatial ability and spatial visualization ability used in daily life. [7] The block design test is considered one of the best measures of spatial ability, although it is subject to certain problems of administration, such as anxiety or over-cautious responding. Linda Kreger Silverman has proposed the block design subtest as the best putative measure of spatial ability among the Wechsler subtests. [8] One well-known example of high spatial ability from history is Albert Einstein.
Uta Frith, in her book Autism: Explaining the Enigma, [9] addresses the superior performance of autistic individuals on the block design test. This was also addressed in an earlier paper. [10] One article demonstrates the differences in construction time in the performance of the block design task by individuals with and without Asperger syndrome. An essential point is that in an unsegmented version of the task, people with Asperger syndrome performed significantly faster than neurotypical individuals. [11]
Recent research has demonstrated a connection between spatial ability and math and science proficiency at the highest levels. A 2002 study in the Lancet demonstrated that high spatial ability was related to the performance of surgery. [12]
In 1993, Dror et al. found that pilots' performance was superior to non-pilots on a test of the speed of mental rotation. Although the block design test is characterized as a test of spatial visualization, not mental rotation, spatial visualization ability as measured by the block design test is highly correlated to mental rotation ability. [13]
As performance on the block design test has been suggested as a predictive measure for performance in fields such as engineering and physics. Felder, at North Carolina State University, has developed a learning style questionnaire that attempts to assess spatial ability in an educational context. [14]
Asperger syndrome (AS), also known as Asperger's syndrome or Asperger's, is a term formerly used to describe a neurodevelopmental condition characterized by significant difficulties in social interaction and nonverbal communication, along with restricted, repetitive patterns of behavior and interests. Asperger syndrome has been merged with other conditions into autism spectrum disorder (ASD) and is no longer considered a stand-alone diagnosis. It was considered milder than other diagnoses which were merged into ASD due to relatively unimpaired spoken language and intelligence.
In psychology, theory of mind refers to the capacity to understand other people by ascribing mental states to them. A theory of mind includes the knowledge that others' beliefs, desires, intentions, emotions, and thoughts may be different from one's own. Possessing a functional theory of mind is crucial for success in everyday human social interactions. People utilize a theory of mind when analyzing, judging, and inferring others' behaviors. The discovery and development of theory of mind primarily came from studies done with animals and infants. Factors including drug and alcohol consumption, language development, cognitive delays, age, and culture can affect a person's capacity to display theory of mind. Having a theory of mind is similar to but not identical with having the capacity for empathy or sympathy.
Sir Simon Philip Baron-Cohen is a British clinical psychologist and professor of developmental psychopathology at the University of Cambridge. He is the director of the university's Autism Research Centre and a Fellow of Trinity College.
The Wechsler Adult Intelligence Scale (WAIS) is an IQ test designed to measure intelligence and cognitive ability in adults and older adolescents.
Cognitive tests are assessments of the cognitive capabilities of humans and other animals. Tests administered to humans include various forms of IQ tests; those administered to animals include the mirror test and the T maze test. Such testing is used in psychology and psychometrics, as well as other fields studying human and animal intelligence.
The Wechsler Intelligence Scale for Children (WISC) is an individually administered intelligence test for children between the ages of 6 and 16. The Fifth Edition is the most recent version.
Raven's Progressive Matrices or RPM is a non-verbal test typically used to measure general human intelligence and abstract reasoning and is regarded as a non-verbal estimate of fluid intelligence. It is one of the most common tests administered to both groups and individuals ranging from 5-year-olds to the elderly. It comprises 60 multiple choice questions, listed in order of increasing difficulty. This format is designed to measure the test taker's reasoning ability, the eductive ("meaning-making") component of Spearman's g.
The Kohs Block test, also known as the Kohs Block Design Test, is a performance test designed to be an IQ test. The test taker must, using 16 colored cubes, replicate the patterns displayed on a series of test cards. The design of the test was motivated by a belief that the test could easily be administered to persons with language or hearing disabilities.
Mental rotation is the ability to rotate mental representations of two-dimensional and three-dimensional objects as it is related to the visual representation of such rotation within the human mind. There is a relationship between areas of the brain associated with perception and mental rotation. There could also be a relationship between the cognitive rate of spatial processing, general intelligence and mental rotation.
Spatial visualization ability or visual-spatial ability is the ability to mentally manipulate 2-dimensional and 3-dimensional figures. It is typically measured with simple cognitive tests and is predictive of user performance with some kinds of user interfaces.
NEPSY is a series of neuropsychological tests authored by Marit Korkman, Ursula Kirk and Sally Kemp, that is used in various combinations to assess neuropsychological development in children ages 3–16 years in six functional domains.
The Kaufman Assessment Battery for Children (KABC) is a clinical instrument for assessing cognitive development. Its construction incorporates several recent developments in both psychological theory and statistical methodology. The test was developed by Alan S. Kaufman and Nadeen L. Kaufman in 1983 and revised in 2004. The test has been translated and adopted for many countries, such as the Japanese version of the K-ABC by the Japanese psychologists Tatsuya Matsubara, Kazuhiro Fujita, Hisao Maekawa, and Toshinori Ishikuma.
The weak central coherence theory (WCC), also called the central coherence theory (CC), suggests that a specific perceptual-cognitive style, loosely described as a limited ability to understand context or to "see the big picture", underlies the central issue in autism and related autism spectrum disorder. Autism is a neurodevelopmental disorder characterized by impaired social interaction and communication, repetitive behaviours, restricted interests, and sensory processing issues.
Dame Uta Frith is a German-British developmental psychologist and emeritus professor in cognitive development at the Institute of Cognitive Neuroscience at University College London (UCL). She pioneered much of the current research into autism and dyslexia. Her book Autism: Explaining the Enigma introduced the cognitive neuroscience of autism. She is credited with creating the Sally–Anne test along with fellow scientists Alan Leslie and Simon Baron-Cohen. Among students she has mentored are Tony Attwood, Maggie Snowling, Simon Baron-Cohen and Francesca Happé.
The Halstead–Reitan Neuropsychological Test Battery (HRNB) and allied procedures is a comprehensive suite of neuropsychological tests used to assess the condition and functioning of the brain, including etiology, type, localization and lateralization of brain injury. The HRNB was first constructed by Ward C. Halstead, who was chairman of the Psychology Department at the University of Chicago, together with his doctoral student, Ralph Reitan. A major aim of administering the HRNB to patients was if possible to lateralize a lesion to either the left or right cerebral hemisphere by comparing the functioning on both sides of the body on a variety of tests such as the Suppression or Sensory Imperception Test, the Finger Agnosia Test, Finger Tip Writing, the Finger Tapping Test, and the Tactual Performance Test. One difficulty with the HRNB was its excessive administration time. In particular, administration of the Halstead Category Test was lengthy, so subsequent attempts were made to construct reliable and valid short-forms.
Hold tests are neuropsychological tests which measure abilities which are thought to be largely resistant to cognitive decline following neurological damage. As a result, these tests are widely used for estimating premorbid intelligence in conditions such as dementia, traumatic brain injury, and stroke.
The Delis–Kaplan Executive Function System (D-KEFS) is a neuropsychological test used to measure a variety of verbal and nonverbal executive functions for both children and adults. This assessment was developed over the span of a decade by Dean Delis, Edith Kaplan, and Joel Kramer, and it was published in 2001. The D-KEFS comprises nine tests that were designed to stand alone. Therefore, there are no aggregate measures or composite scores for an examinee's performance. A vast majority of these tests are modified, pre-existing measures ; however, some of these measures are new indices of executive functions.
The relationship between autism and memory, specifically memory functions in relation to Autism Spectrum Disorder (ASD), is an ongoing topic of research. ASD is a neurodevelopmental disorder characterised by social communication and interaction impairments, along with restricted and repetitive patterns of behavior. In this article, the word autism is used to refer to the whole range of conditions on the autism spectrum, which are not uncommon.
The Boston Process Approach is a neurological assessment tool developed by Edith Kaplan and her colleagues, Harold Goodglass, Nelson Butters, Laird Cermak, and Norman Geschwind at the Boston Veterans Medical Center. The main purpose of the Boston Process Approach is to assess brain damage as well as cognitive impairments in patients through a series of tests that are related to memory, attention, intelligence, and other aspects of information processing. This approach is one of the more flexible and qualitative neurological assessments because it emphasizes how a patient performs a task instead of whether they succeeded or failed at it.
The theory of the double empathy problem is a psychological and sociological theory first coined in 2012 by Damian Milton, an autistic autism researcher. This theory proposes that many of the difficulties autistic individuals face when socializing with non-autistic individuals are due, in part, to a lack of mutual understanding between the two groups, meaning that most autistic people struggle to understand and empathize with non-autistic people, whereas most non-autistic people also struggle to understand and empathize with autistic people. This lack of understanding may stem from bidirectional differences in communication style, social-cognitive characteristics, and experiences between autistic and non-autistic individuals, but not necessarily an inherent deficiency. Recent studies have shown that most autistic individuals are able to socialize, communicate effectively, empathize well, and display social reciprocity with most other autistic individuals. This theory and subsequent findings challenge the commonly held belief that the social skills of autistic individuals are inherently impaired, as well as the theory of "mind-blindness" proposed by prominent autism researcher Simon Baron-Cohen in the mid-1980s, which suggested that empathy and theory of mind are universally impaired in autistic individuals.
Fig 3
{{cite web}}: CS1 maint: archived copy as title (link), Dror, Kosslyn and Wang. (1993). Visual-Spatial Abilities in Pilots. Journal of Applied Psychology, 78(5), 763–773.