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Original language | English |
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Pages (from-to) | 163-169 |
Number of pages | 7 |
Journal | |
Volume | 59 |
DOIs | |
Publication status | Published - 2016 |
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T1 - The negative Flynn effect: A systematic literature review
AU - van der Dutton, E
AU - van der Linden, Dimitri
AU - Lynn, R
U2 - 10.1016/j.intell.2016.10.002
DO - 10.1016/j.intell.2016.10.002
M3 - Article
SN - 0160-2896
JO - Intelligence
JF - Intelligence
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The Flynn Effect (FE) among child and adolescent populations indicates that intelligence scores improve by about three points per decade. Using nine years of data from the National Database for Autism Research, this study examined whether general intelligence changed significantly for nine cohorts with autism spectrum disorder (ASD; N = 671). Analyses demonstrated a downward trend such that Cohen’s d from 1998 to 2006 was − 0.27. The mean IQ is 92.74 for years 1–3, 91.54 for years 4–6, and 87.34 for years 7–9, indicating a reverse FE of 5.4 points per decade. A linear regression revealed a significant negative FE comparable to the positive effect of age on IQ among those with ASD. Implications for research, practice, and law are discussed.
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Data and/or research tools used in the preparation of this manuscript were obtained from the National Institute of Mental Health (NIMH) Data Archive (NDA). NDA is a collaborative informatics system created by the National Institutes of Health to provide a national resource to support and accelerate research in mental health. Dataset identifier(s): Package number 113988. This manuscript reflects the views of the authors and may not reflect the opinions or views of the NIH or of the Submitters submitting original data to NDA.
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Department of Educational Psychology, Baylor University, Waco, TX, USA
Kenzie B. Billeiter
Department of Educational Studies, Purdue University, West Lafayette, IN, USA
John Mark Froiland
Department of Psychology, Sam Houston State University, Huntsville, TX, USA
Justin P. Allen
Division of Counseling and Psychology in Education, University of South Dakota, Vermillion, SD, USA
Daniel B. Hajovsky
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Billeiter, K.B., Froiland, J.M., Allen, J.P. et al. Neurodiversity and Intelligence: Evaluating the Flynn Effect in Children with Autism Spectrum Disorder. Child Psychiatry Hum Dev 53 , 919–927 (2022). https://doi.org/10.1007/s10578-021-01175-w
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Accepted : 21 April 2021
Published : 03 May 2021
Issue Date : October 2022
DOI : https://doi.org/10.1007/s10578-021-01175-w
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The Flynn Effect (rising performance on intelligence tests in the general population over time) is now an established phenomenon in many developed and less developed countries. Recently, evidence has begun to amass that the Flynn Effect has gone into reverse; the so-called 'Negative Flynn Effect.'. In this study, we present a systematic ...
A small negative Flynn effect was found among the 8, 10 and 11 year olds but not among the 7, 9, and 10 year olds. We also found, using this method, Koivunen (2007), which reported a negative Flynn Effect in Finland up to 2001. Parallel to the search in Google Scholar, we conducted the same search using Scopus.
The Flynn Effect (rising performance on intelligence tests in the general population over time) is now an established phenomenon in many developed and less developed countries. Recently, evidence has begun to amass that the Flynn Effect has gone into reverse; the so-called 'Negative Flynn Effect.' In this study, we present a systematic literature review, conducted in order to discover in ...
A. McGrath Matthew Thomas N. Sugden C. Skilbeck. Psychology. Australian Journal of Psychology. 2022. ABSTRACT Objective While the Flynn effect is a well-recognised phenomenon impacting tests of cognitive ability, limited research has been conducted into its relevance for tests of premorbid ability.…. Expand.
The anti-Flynn effect means that cognitive ability test scores decrease in some contexts, and this may happen completely due to environmental factors such as increased TV consumption in earlier ...
Recently, evidence has begun to Received in revised form 9 September 2016 amass that the Flynn Effect has gone into reverse; the so-called 'Negative Flynn Effect.' In this study, we present Accepted 13 October 2016 a systematic literature review, conducted in order to discover in precisely how many countries this reverse phe- Available ...
Recently, evidence has begun to amass that the Flynn Effect has gone into reverse; the so-called 'Negative Flynn Effect.'. In this study, we present a systematic literature review, conducted in order to discover in precisely how many countries this reverse phenomenon has been uncovered. Using strict criteria regarding quality of the sample ...
Dutton E., Lynn R. (2013). A negative Flynn effect in Finland, 1997-2009. Intelligence, 41, 817-820. Crossref. Google Scholar. ... (2013). Who discovered the Flynn effect? A review of early studies of the secular increase of intelligence. Intelligence, 41, 765-769. ... The negative Flynn Effect: A systematic literature review.
The negative Flynn effect: A systematic literature review. Intelligence . 2016;59:163-169. doi: 10.1016/j.intell.2016.10.002 Powered by Pure , Scopus & Elsevier Fingerprint Engine™
The overall Flynn effect of 2.31 produced by this meta-analysis was lower than Flynn's (2009a) value of 3.11 and Fletcher et al.'s (2010) value of 2.80. It also fell below Dickinson and Hiscock's (2010) estimate of 2.60, which was the average of separate calculations for each of the 11 Wechsler subtests.
Population intelligence quotients increased throughout the 20th century—a phenomenon known as the Flynn effect—although recent years have seen a slowdown or reversal of this trend in several countr...
The negative Flynn Effect: A systematic literature review. E Dutton, D van der Linden, R Lynn. Intelligence 59, 163-169, 2016. 206: 2016: A negative Flynn effect in Finland, 1997-2009. E Dutton, R Lynn. Intelligence 41 (6), 817-820, 2013. 117: 2013: A negative Flynn Effect in France, 1999 to 2008-9.
Reverse Flynn E˚ects Reverse FE's (i.e., systematic declines in IQ scores) have been observed in several countries as well as in the United States [20]. For instance, Dutton et al. conducted a sys-tematic literature review following PRISMA guidelines and found that nine studies reported reverse FE's in seven countries [20].
The Flynn Effect (rising performance on intelligence tests in the general population over time) is now an established phenomenon in many developed and less developed countries. Recently, evidence has begun to amass that the Flynn Effect has gone into reverse; the so-called 'Negative Flynn Effect.' In this study, we present a systematic literature review, conducted in order to discover in ...
Reverse FE's (i.e., systematic declines in IQ scores) have been observed in several countries as well as in the United States [].For instance, Dutton et al. conducted a systematic literature review following PRISMA guidelines and found that nine studies reported reverse FE's in seven countries [].More specifically, a study of Norwegian conscripts tested from the1950s to 2002 demonstrated a ...
These are remarkable results because of the conclusion that memory span and working memory are closely associated with fluid intelligence (Chuderski, 2013, Colom et al., 2008, Kane et al., 2005) and measures of fluid intelligence have shown Flynn Effect changes, including the increases in abstract reasoning measured by the Progressive Matrices ...
The Flynn effect. The Flynn effect is the well-known observation of increases in IQ scores of approximately three points per decade. Flynn (Citation 1984) initially observed IQ score gains ranging from .25 to .44 points per year in data from 73 studies using the Stanford-Binet and Wechsler intelligence tests.These findings have since been replicated in a number of studies (Flynn, Citation 1987 ...
Dysgenic fertility is also the favored hypothesis in a recent literature review on reversed Flynn effects, where the authors conclude that dysgenic trends are the "simplest explanation for the negative Flynn effect" . A negative intelligence-fertility gradient is hypothesized to have been disguised by a positive environmental Flynn effect ...
Flynn effect and its reversal are both environmentally caused. Bernt Bratsberg and Ole Rogeberg Authors Info & Affiliations. Edited by Richard E. Nisbett, University of Michigan, Ann Arbor, MI, and approved May 14, 2018 (received for review October 27, 2017) June 11, 2018. 115 ( 26) 6674-6678.
In the present study, we show evidence for a negative Flynn effect in figural reasoning on a one-dimensional, measurement-invariant test. ... The negative Flynn Effect: A systematic literature review. Intelligence. 2016; 59:163-69. doi: 10.1016/j.intell.2016.10.002. [Google Scholar]
The results of both Study 1 and Study 2 unambiguously indicated that there was no negative Flynn effect in France, ... The negative Flynn effect: A systematic literature review. Intelligence (2016) J.R. Flynn Requiem for nutrition as the cause of IQ gains: Raven's gains in Britain 1938-2008.
The negative Flynn Effect: A systematic literature review Dutton, Edward; van der Linden, Dimitri; Lynn, Richard Intelligence, New Article...
This has been conceptualised as the environment forcing us to 'don scientific spectacles' (see Flynn, 2012). In their systematic literature review of the Negative Flynn Effect, Dutton et al. (2016) propose that the Negative Flynn Effect, which occurs on g to a greater extent than the Flynn Effect, may reflect a combination of so-called ...