Wednesday, July 29, 2015

Sharing Using Score Equating and Measurement Invariance to Examine the Flynn Effect in the Wechsler Adult Intelligence Scale via BrowZine

Using Score Equating and Measurement Invariance to Examine the Flynn Effect in the Wechsler Adult Intelligence Scale
Benson, Nicholas; Beaujean, A. Alexander; Taub, Gordon E.
Multivariate Behavioral Research, Vol. 50 Issue 4 – 2015: 398 - 415

10.1080/00273171.2015.1022642

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Sunday, July 26, 2015

Sharing Race, Ethnicity, and Culture in Jury Decision Making via BrowZine

Race, Ethnicity, and Culture in Jury Decision Making
Hunt, Jennifer S.
Annual Review of Law and Social Science, Vol. 11 Issue 1 – 2015: 150724171920007

10.1146/annurev-lawsocsci-120814-121723

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Tuesday, July 21, 2015

Sharing Effects of language of assessment on the measurement of acculturation: Measurement equivalence and cultural frame switching. via BrowZine

Effects of language of assessment on the measurement of acculturation: Measurement equivalence and cultural frame switching.
Schwartz, Seth J.; Benet-Martínez, Verónica; Knight, George P.; Unger, Jennifer B.; Zamboanga, Byron L.; Des Rosiers, Sabrina E.; Stephens, Dionne P.; Huang, Shi; Szapocznik, José
Psychological Assessment, Vol. 26 Issue 1 – 2014: 100 - 114

10.1037/a0034717

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Sharing Behavioral Ethics Meets Legal Ethics via BrowZine

Behavioral Ethics Meets Legal Ethics
Robbennolt, Jennifer K.
Annual Review of Law and Social Science, Vol. 11 Issue 1 – 2015: 150720190125003

10.1146/annurev-lawsocsci-120814-121631

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Tuesday, June 30, 2015

New favorable Atkins SCOTUS decision: Brumfield v Cain


From SCOTUS blog.

  • Holding: Because the inmate’s evidence of intellectual disability satisfied the requirements of 28 U.S.C. § 2254(d)(2), he was entitled to have his claim based on Atkins v. Virginia, in which the Court held that the Constitution prohibits the execution of the mentally disabled, considered on the merits in federal court.
  • Judgment: Reversed and remanded, 5-4, in an opinion by Justice Sotomayor on June 18, 2015. Justice Thomas filed a dissenting opinion in all but Part I-C, of which Chief Justice Roberts, Justice Scalia, and Justice Alito joined. Justice Alito filed a dissenting opinion, in which Chief Justice Roberts joined.
Click here for ruling and access to documents.

Click here for links to all prior Brumfield related documents available at this blog

Thursday, June 25, 2015

Sharing Standards to Guide the Use of Clinical Judgment in the Field of Intellectual Disability via BrowZine

Standards to Guide the Use of Clinical Judgment in the Field of Intellectual Disability
Luckasson, Ruth; Schalock, Robert L.
Intellectual and Developmental Disabilities, Vol. 53 Issue 3 – 2015: 240 - 251

10.1352/1934-9556-53.3.240

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Monday, June 15, 2015

WAIS-IV US/Canadian norms controversy---articles for readers to review



I previously provided an FYI post on a hot topic in Canada...claims that the new WAIS-IV Canadian norms were flawed.  There are now three articles outlining the different arguments.  The three articles, published in JPA, can be found here, here, and here.

I continue to not comment on this controversy given my obvious conflict of interest as a coauthor of the competing WJ-IV.

Kevin McGrew

Another Flynn effect (norm obsolescence) meta-analysis

 (click on image to enlarge)

A second massive meta-analysis of the Flynn effect (norm obsolescence) was recently published (Pietschnig & Voraseck, 2015).  The study investigated different Flynn effect ability domain effects (by Gf, Gc, Gv), and other moderating variables.  However, the most important conclusion is that the authors conclude that the 3 IQ points per decade rule-of-thumb appears to be the best estimate of the FE on global IQ scores.  This conclusion is consistent with the Trahan et al. (2014) meta-analysis and the recent AAIDD recommendation.


AAIDD chapters on intellectual functioning and the Flynn effect - overdue post

(Click on image to enlarge)




It has been along time since I've been able to devote time to any of my three professional blogs.  I have been unbelievably busy with travel and professional presentations.  In fact, I have been so busy that I failed to feature two of my own recent Atkin's death penalty related book chapters that appeared in the new AAIDD book "Determining Intellectual Disability in the courts: Focus on capital cases." I have made these two chapters available via the MindHub web portal but do not believe I featured them at this blog (or at IQ's Corner).  One chapter deals with assessment of intellectual functioning issues and the other IQ test norm obsolescence (aka., the Flynn Effect).  The references (with links) are below.

McGrew, K. (2015a). Intellectual functioning. In Polloway, E. (Ed.), Determining Intellectual Disability in the courts: Focus on capital cases (pp. 85-111). Washington, DC: American Association on Intellectual and Developmental Disabilities.

McGrew, K. (2015b). Norm obsolescence: The Flynn Effect. In Polloway, E. (Ed.), Determining Intellectual Disability in the courts: Focus on capital cases (pp. 155-169). Washington, DC: American Association on Intellectual and Developmental Disabilities

Saturday, June 6, 2015

Sharing A negative Flynn Effect in France, 1999 to 2008–9 via BrowZine

A negative Flynn Effect in France, 1999 to 2008–9
Dutton, Edward; Lynn, Richard
Intelligence, Vol. 51 – 2015: 67 - 70

10.1016/j.intell.2015.05.005

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*********************************************
Kevin McGrew, PhD
Educational Psychologist
Director
Institute for Applied Psychometrics
www.themindhum.com
*********************************************

Wednesday, April 29, 2015

Law Review Articles: Atkins v Virginia Symposium: William & Mary Bill of Rights Journal-7 articles

I just became aware of this 2014 publication of the William & Mary Bill of Rights Journal devoted to a symposium on Atkins v Virginia.  It includes seven different articles.  The above link should take readers to the web page where the articles can be accessed.  Click image to enlarge.




Wednesday, April 29, 2015
8:25 PM


Florida Supreme Court Strikes Down Mentally Ill Defendant's Death Sentence as Disproportionate [feedly]



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Florida Supreme Court Strikes Down Mentally Ill Defendant's Death Sentence as Disproportionate
// Death Penalty Information Center

In a case spotlighting issues of mental illness and the death penalty, the Florida Supreme Court on April 23 unanimously overturned the death sentence imposed on a severely mentally ill death-row inmate, Humberto Delgado (pictured). Delgado, who was convicted of killing a Tampa police officer, will be resentenced to life without parole. The court said, "We do not downplay the fact that Corporal Roberts lost his life as a result of Delgado's actions. However … we are compelled to reduce Delgado's sentence to life imprisonment because death is not a proportionate penalty when compared to other cases." Delgado had a history of delusions and psychotic behavior before the crime, including believing that police were out to kill him and that people were following him and sitting in trees outside his home. Delgado's attorneys pointed out that, because Delgado shot the police officer only after the officer had used a Taser, there was a lack of premeditation. Tampa police Chief Jane Castor released a statement in response to the decision, saying, "We respect the justice system and those who have to make tough decisions. Regardless of the conclusion, it doesn't bring Mike back and it doesn't relieve the pain that his wife, son and his TPD family feel. His life sentence will still ensure he is held accountable for his actions." 

(D. Sullivan, "Supreme Court overturns death sentence for killer of Tampa police corporal," Tampa Bay Times, April 23, 2015.) See Arbitrariness and Mental Illness.

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Sunday, April 12, 2015

Sharing Intelligence is in the Eye of the Beholder: Investigating Repeated IQ Measurements in Forensic Psychiatry via BrowZine

Intelligence is in the Eye of the Beholder: Investigating Repeated IQ Measurements in Forensic Psychiatry
Habets, Petra; Jeandarme, Inge; Uzieblo, Kasia; Oei, Karel; Bogaerts, Stefan
Journal of Applied Research in Intellectual Disabilities, Vol. 28 Issue 3 – 2015: 182 - 192

10.1111/jar.12120

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Wednesday, April 8, 2015

Sharing Beyond the floor effect on the Wechsler Intelligence Scale for Children - 4th Ed. (WISC-IV): calculating IQ and Indexes of subjects presenting a floored pattern of results via BrowZine

Beyond the floor effect on the Wechsler Intelligence Scale for Children - 4th Ed. (WISC-IV): calculating IQ and Indexes of subjects presenting a floored pattern of results
Orsini, A.; Pezzuti, L.; Hulbert, S.
Journal of Intellectual Disability Research, Vol. 59 Issue 5 – 2015: 468 - 473

10.1111/jir.12150

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Wednesday, March 25, 2015

Blogging lite - out of the office for two weeks



I am out of the office for two weeks and will only be doing FYI content curation posts - when tine permits.  I shall return.

Friday, March 13, 2015

The Flynn Effect Archive Project update/revision-v12 - now available


Click on image to enlarge.  To be taken to the on-line archive, click here.

For background information on this project, visit this prior blog post.

Friday, March 13, 2015
3:22 PM




Wednesday, February 11, 2015

Sharing The cognitive impact of the education revolution: A possible cause of the Flynn Effect on population IQ via BrowZine

The cognitive impact of the education revolution: A possible cause of the Flynn Effect on population IQ
Baker, David P.; Eslinger, Paul J.; Benavides, Martin; Peters, Ellen; Dieckmann, Nathan F.; Leon, Juan
Intelligence, Vol. 49 – 2015: 144 - 158