What's Your IQ

Mostly the same test, measured against new people

1,880people in the norm sample, aged 16 to 74⁴

6 + 5verbal and performance subtests, the same eleven as before⁹

≈80%of the original items kept, with an attempt to make it more culturally fair⁷

1976–80four years of development before release⁴

60–90 minto give the full scale⁵

Age 16shared with the WISC-R, so examiners could give either test⁴

SAMPLE SIZEMost sources give 1,880 people; two teaching summaries say 1,800.^4,8,5,7 Our timeline's claim that the WAIS-R was "the dominant US adult test until 1997" isn't stated in these sources.

Is the drop with age real?

In WAIS-R data, 66-year-olds scored about 6.4 IQ points below 16-year-olds, averaged across all 11 subtests. The generational rise in scores (the Flynn effect) over the same 50-year gap was estimated at 14.1 points, enough to account for the whole difference.¹

Kaufman reached a different conclusion. Comparing each WAIS-R age group with the same birth cohort tested 25 years earlier, he found real declines, steeper on nonverbal than verbal subtests, and not explained by education or rising scores.³

Age difference in scores−6.4

Estimated Flynn effect, same 50 years−14.1

IQ points, 16- vs 66-year-olds, from one analysis of the WAIS-R¹

EXPLORE · 70- TO 74-YEAR-OLDS, 1955 TO 2008

Same age, four norm samples

Scores for 70-to-74-year-olds from four editions, not corrected for age, so they're on the young-adult scale. Pick a measure to see whether each generation of older adults scored higher.

80SD 12.5

82SD 10.5

85SD 13

86SD 13

WAISn = 80WAIS-Rn = 160WAIS-IIIn = 200WAIS-IVn = —

Full Scale IQ: 80 in 1955 → 86 in 2008, a rise of 6 IQ points for the same age group.

Figures from Miller (2009), who derived age-uncorrected means for the 70–74 groups.³ Sample sizes are given for 1955, 1981 and 1997 only.

What the 1997 edition changed

Larger, older sampleThe 1997 WAIS-III was normed on 2,450 people aged 16 to 89.⁶

Co-normed memoryDeveloped and co-normed with the Wechsler Memory Scale, third edition.⁶

Four indexesAdded Verbal Comprehension, Working Memory, Perceptual Organization and Processing Speed indexes alongside the IQs.⁵

Age-corrected indexesIndex scores were corrected for age for the first time.³

References

[1]Agbayani, K. A. Patterns of age-related IQ changes from the WAIS to WAIS-III after adjustment for the Flynn effect. University of Houston (PDF).uh-ir.tdl.org

[2]Age differences and educational attainment across the life span on three generations of Wechsler adult scales (2016). Journal of Psychoeducational Assessment, 34(5), 421–441 (PDF).uva.theopenscholar.com

[3]Miller, L. S. et al. (2009). Changes in intellectual functioning associated with normal aging. Montana Legislature archive (PDF).archive.legmt.gov

[4]Master's thesis on the WISC-R and WAIS-R. Western Michigan University ScholarWorks (PDF).scholarworks.wmich.edu

[5]The Wechsler Adult Intelligence Scale (WAIS). SlideShare presentation.slideshare.net

[6]Wechsler Adult Intelligence Scale: an overview. ScienceDirect Topics (Medicine and Dentistry).sciencedirect.com

[7]WAIS: comprehensive summary of the Wechsler Adult Intelligence Scale. Studocu.studocu.com

[8]Wechsler Adult Intelligence Scale. Grokipedia (2026).grokipedia.com

[9]Wechsler Adult Intelligence Scale (WAIS). IQ Test Prep.iqtestprep.com

HOW TO CITE THIS PAGE

What's Your IQ. (2026). WAIS-R (1981): Wechsler Adult Intelligence Scale – Revised. In Historical IQ Tests Archive. Retrieved September 30, 2026, from /en/historical-iq-tests/wais-r-1981

EDITORIAL RECORD

First published2026

Last reviewed30 September 2026

Sources9, all from visible search results

Open questions1,880 vs 1,800 sample; "dominant until 1997" claim; ageing vs Flynn interpretation

Canonical URLwhats-your-iq.com/en/historical-iq-tests/wais-r-1981

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Part of the Historical IQ Tests Archive. Editorial content under CC BY-SA 4.0. WAIS-R is a registered mark of its publisher; no test items are reproduced.

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Older adults, or older norms?

Mostly the same test, measured against new people

Is the drop with age real?

Same age, four norm samples

What the 1997 edition changed

References

Related historical tests

Old norms inflate scores. Ours are current.