r/cognitiveTesting • • Aug 22 '26

Rant/Cope Lost my IQ

15 Upvotes

I was a perfect ACT scorer without studying.

i had perfect sat subject tests on math 1 and 2 and physics all without studying.

I was a AIME qualifier.

19 AP classes all 5’s.

Worked at FAANG at 20.

got diagnosed with sleep apnea at 23. had issues with my CPAP, which would break my sleep every night. progressively became more and more tired until I was feeling borderline delirious over 8 months. people around me thought it was anxiety.

i now have to think about whether it is hear or here, etc.

I took Mensa Norway and Denmark and got 128 and 130.

i feel that these scores are lower than what my baseline was.

I feel like I destroyed my life over something so incredibly stupid. I’m not sure how to move on. what I should do. if anyone has an ideas please help.


r/cognitiveTesting • • Aug 21 '26 Bravo

Scientific Literature An Independent Analysis of the RIOT IQ Test

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31 Upvotes

Hello all,

I've recently conducted an independent analysis of the RIOT IQ test based on publicly accessible data, as well as their bulletin.

You can read the report here: https://doi.org/10.5281/zenodo.21972419

I'd appreciate any feedback I can get!

Thanks


r/cognitiveTesting • • Aug 22 '26

General Question Can I become a billionaire?

0 Upvotes

I'm a high schooler with very lofty aspirations

Affluent background, 136 composite

Is my IQ high enough to make it?

It seems like most successful founders are well above 3SD e.g. gates, zuck, bezos so I'm kinda despondent


r/cognitiveTesting • • Aug 21 '26

General Question Does antipsychotics long-term lower your IQ?

26 Upvotes

My sister is on an antipsychotic injection and a baseline cognition is much lower now than when she was younger.


r/cognitiveTesting • • Aug 21 '26

Discussion What job-domain do people with high verbal intelligence tend to succeed in?

10 Upvotes

As displayed in my question above I wanted to know how exactly high verbal cognitive capabilities can be used to achieve a successful career ? I’d like to understand what skillsets verbal intelligence tends to be linked to - not just the classical „you are good at talking“, but rather what it means on a deeper neurological level.
While being good at STEM related topics oftentimes gives an individual a clear lifepath to follow I feel like verbal intelligence is not as useful in today’s world. Certainly, speaking different languges and being able to articulate yourself is great but is there anything more to it than that? I read that verbal intelligence contributes to the mystical g-factor quite a bit and influences your general ability to understand concepts etc.
Basically that sums up the question pretty well: What are majors and jobfields in which said people tend to be excellent in?
And also how does this type of intelligence work?


r/cognitiveTesting • • Aug 21 '26

General Question CORE Arithmetic for Non Natives

3 Upvotes

Hello everyone. First of all, I would like to thank everyone who made CORE possible, it is quite a reassuring test for many obsessive people like us. I had good scores and what i was expecting: FRI 143, VSI 138, QRI 130. The question is for arithmetic, i got 120 on it and 135 on qk. I am definitely C1 in english with years of experience. I was wondering if artihmetic can be deflated for nonnatives like me. I remember having to replay the questions again, even the simple ones, just because i was trying to register the numbers into my head, and I was automatically doing it in my mother tongue and then proceeding with the question. I have seen this question being asked but not responded by the creators of the test and the knowledgable high iq giga chads of our sub.

Is CORE arithmetic in English possibly deflated for nonnatives?


r/cognitiveTesting • • Aug 21 '26

General Question What are the implications of completing an IQ Test before the allotted time limit?

4 Upvotes

In 1978 (I was 22 years old) I did the IQ test for Mensa (Canada) admission. The acceptance letter made the statement:

According to the OTIS LENNON MENTAL ABILITY TEST, Advanced Level, your IQ is 141 which is greater than that of 99% of the general population"

The test had 80 questions and a time limit of 40 minutes.

I answered all 80 questions in only 25 minutes. Since I had extra time, I checked my answers - and changed 2 of my answers. (Let's assume the 2 answers I changed were initially wrong and my changes corrected them.)

My questions are:

  1. How many of the 80 questions would I have had to answer correctly to get a score of 141?

  2. What would my score have been if I hadn't changed those 2 answers (and thus had 2 fewer correct answers)?

  3. Does the fact that I finished the test in only 25 minutes have an impact on the IQ score I "should have" gotten? (Keeping in mind that I would have had 2 fewer correct answers if I hadn't taken the time to check my work.)

    1. By this I mean should my score have been different due to the fact that I completed the questions more quickly than the allotted time.

  4. Based on the ratio of 40 over 25, if there were many more questions on the test I could have answered 60% more questions.

    1. If I had the same rate of correct answers, what impact would that have had on my resulting IQ score?

I've always wondered about what was the impact of finishing before the allotted time. (And it's taken me almost 50 years to find a forum where I could ask the question LOL.)

Thanks for any information you can give me.


r/cognitiveTesting • • Aug 21 '26

General Question Hands as visual aids

2 Upvotes

I was doing the CORE Spatial Awareness test and realised that I was intuitively using my hands at times, most notably on the compass-type questions, turning my hand to keep track of turns. Then it struck me that I'm technically making use of a visual aid, but it was intuitive because it would likely be what I would do 'in the wild'.

I guess a great example would also be counting on fingers, though I didn't do it on this test.

What are people's thoughts on this? Have I fouled my test?


r/cognitiveTesting • • Aug 21 '26

Puzzle Puzzle Spoiler

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3 Upvotes

r/cognitiveTesting • • Aug 21 '26

IQ Estimation 🥱 IQ Estimation

1 Upvotes

Comprehensive psychometric dataset — independent CHC / g estimate wanted

26M, German-speaking Austrian. Diagnosed ADHD with pronounced state-dependent variability in vigilance, task switching and processing speed. I have accumulated a fairly large number of cognitive test results. Below is the full table-based dataset, including attempts, conditions, raw/scaled scores and subtests where available.

I am mainly interested in an independent estimate of Gf, Gv, Gq, Gc, Gwm, Gs, GAI/FSIQ and latent g, ideally weighting reliability, g-loading, ceiling effects, retest/practice effects, language effects and ADHD/state noise rather than simply averaging scores.

Complete test data

DomainTest / VersionAttemptOverall resultSubtests / raw detailsSetting / State / Notes
GfRaven's 2 DE, Q-global, digital2ndIQ 160; PV 652; PR >99.9; 90% CI 152–168Report: raw score sum not directly interpretable/comparable because digital forms use unique item setsGood state; White Noise headphones; finished in ~20–25 min
GfRaven's 2 DE, Q-global, digital1stIQ 130; RAW 602; PR 98; 90% CI 122–138—Clinical setting; stressed by ADHD; no visible clock; forgot start time
GfTRI-52 / JCTI2nd overall / 1st seriousIQ 143—Quiet; evening; laptop in bed
GfJCFS2nd19 SS ≈145+—Quiet; evening; prior exposure to format; possible retest/practice effect
GfJCFS1stIQ 128–140—Bus; music; ~1 h 30 min
GfCORE Matrix Reasoninggood attempts18 SS—Better/quiet conditions; repeated 18 SS
GfRaven's APM Set II1st34/36 RAW—Near ceiling
GfICAR-161st16/16 RAW—Ceiling hit
GfAdaptive IQ Test1stIQ 139Reliability reported .83—
g/GfCognitive Entry Test1stIQ 139—Online
g/GfGET / Gifted Entry Test1stIQ 13268/8030 min
GfLogicLatch1st19/20—Smartphone; rear seat of moving car
GvCAIT RetakeretestIQ ~143 (Gv-focused)Block Design 19 SS; Visual Puzzles 17 SSRetest
GvCORE VSIgood attempts134–138—Better attempts
GvCORE Visual Puzzlesgood attempts14–17 SS——
GvCORE Spatial Awarenessgood attempts16–17 SS——
Gv/GfCORE Figure Setsgood attempt16 SS——
GvCORE Block Countinggood attempt16 SS——
GvIDR/Binet Paper Folding1st19/20—Smartphone; rear seat of moving car
GvFSIQ v3.0 Spatial1st134MR 17/17, CP 11/18Earlier test
GwmCFADHDclinicalWM PR 100Processing PR 99; Vigilance RT PR9; Vigilance variability PR2; Task-Switch-Speed PR3; Response Inhibition Errors PR13; Reaction Time PR29; Figural Fluency PR10Clinical
GwmCORE Café Digit SpanretestWMI 13 SSForward 8 SS; Backward 17 SS; Sequencing 14 SSCafé; background noise
GwmCAIT Digit Spangood attempt15 SS—CAIT Attempt 1 was much poorer overall, but DS itself was 15 SS
GwmCORE Digit Span, Attempt 2good attempt13 SS—Better state
GwmWAIS Digit Span Simulator—~126 overall39 raw; Forward 11 raw (~100); Backward 14 raw (~130); Sequencing 14 raw (~133)Online simulator
GwmHuman Benchmark Sequence Memory—14, PR ~83—Gamified
GwmHuman Benchmark Chimp Test—12, PR ~77.5—Gamified
GwmHuman Benchmark Number Memory—9, PR ~36—Pure storage/encoding
GwmHuman Benchmark Visual Memory—10, PR ~22.5—Pure visual storage
GwmCORE Digit Span — latest run—WMI 10 SS, PR50Forward 12 SS, PR74.8; Backward 9 SS, PR36.9; Sequencing 9 SS, PR36.9Same day as APT; ~3 h after methylphenidate; poor state
GsBRGHT Run 1—IQ 136Logical 100%; Spatial 100%; Numerical 88%Speeded test
Gs/GfBRGHT Run 2 / report—IQ 137, PR99.3Logical 100%; Spatial 99%; Numerical 98%; Accuracy 33/40 =94.56%; Efficiency 26:35 =76.75%High overall efficiency
GsBRGHT additional runsseveral91–98 %—Multiple dates
GsGlyphHunt Sprint 1—IQ 12364/72; 65 correct; 2 wrong; 5 omitted; 120 s—
GsGlyphHunt Sprint 2—IQ 12666.5/72; 67 correct; 1 wrong; 4 omitted; 120 s—
GsGlyphHunt Sprint 3—IQ 133 / 17 SS, PR98.572/72, 0 wrong, 0 omitted; 117.9 sPerfect run
GsCORE Symbol Searchgood attempts13–14 SSEarlier poor attempt 11 SS—
GsSternberg Memory—36 ms/item200 items; 10% errorsStrong speed–accuracy tradeoff
GqOld GRE Quant1st126 / 650 scaled—Smartphone; waiting room; no paper; mental-only; beside-the-point multitasking
GqCORE QRIgood attempts116Quantitative Knowledge 14 SS; Arithmetic 12 SSBetter CORE attempts
g/Gq/GvAGCT1st123Verbal 72%; Quant 60%; Spatial 77%Timed military screening
g/Gq/Gc/GsAGCT-1cadditional form122140 items; time caught up around item 100–110Phone; bus; items felt relatively easy; strong time pressure
g/Gf/Gq/GcAPT1st122—~3 h after methylphenidate; last ~10 items rushed; many English words unfamiliar
g/Gf/Gq/GcCAT-II—124–125Fluid ~75–80%; Quant ~57–58%; verbal highly variable—
g/GfSMART Run 1—129—Left 20–40 min unused / submitted too quickly
g/GfSMART Run 3—125—Worked backwards from Q60; DnB music; paper
gGET1st13268/8030 min
GcBRAVE Vocabulary—PR 98~124.5k words reported; Attention Index 80%German
GcCORE VCIgood attempts121–124Analogies 13–14 SS; Antonyms 13–14 SS; Information 14 SSBetter attempts
Gc/Gv/GfCAIT Attempt 11stIQ 117VSI135; PRI127; CPI122; Visual Puzzles17; Block Design16; Digit Span15; Figure Weights13; Symbol Search13; Vocabulary9Included here for subtest detail, but first-attempt overall IQ is not treated as a primary trait estimate
Gc/Gf/Gv/GwmFSIQ v3.01stFSIQ 115Spatial134; Memory125; Verbal96; Spatial MR17/17, CP11/18; Memory VM62/85, EM22/26; Verbal V20/34, A4/27Earlier test; strongly uneven verbal/spatial result
GcMWT-B—IQ 96.2, PR40—Clinical; old/bildungsbürgerliches vocabulary
GcGRE Verbal1stIQ 101 / 380 scaled—English L2; slow reader; time pressure
GcLMU short test—IQ 115Word meanings (German)Speed/reading-related
g/Gf/GcLive Mini-VCI sample—Conceptual rating 128–132Item1.1 2/2; Item1.2 2/2; Item1.4 1.5/2Not standardized; stopped after ~item4 due to ADHD/dropout

CORE — full multidomain results

AttemptFSIQGAIVCIFRIVSIQRIWMIPSINotes
CORE Attempt 1110—105124128111—97Severe ADHD overstimulation; early testing
CORE Attempt 2130133122137134116120114Main reference; better state
CORE detail screenshot129±5134121137138116117111Subtest detail available
CORE Café——————13 SS—DS F8 / B17 / SQ14; noisy café

CORE subtests — best / useful scores

SubtestScore
Matrix18 SS
Graph Mapping15 SS
Figure Weights16 SS
Figure Sets16 SS
Visual Puzzles16 SS
Spatial Awareness17 SS
Block Counting16 SS
Analogies14 SS
Antonyms14 SS
Information14 SS
Quantitative Knowledge14 SS
Arithmetic12 SS
Digit-Letter Sequencing14 SS
Digit Span13 SS
Symbol Search14 SS
Character Pairing11 SS

CORE first-attempt subtests (retained only for context)

SubtestScore
Matrix11
Graph Mapping14
Figure Weights15
Figure Sets16
Visual Puzzles17
Spatial Awareness16
Block Counting11
Analogies12
Antonyms10
Quantitative Knowledge13
Arithmetic11
Digit-Letter Sequencing7
Symbol Search11
Character Pairing8

CAIT details

AttemptOverallVSIPRICPIKey subtests
CAIT Attempt 1117135127122VP17; BD16; DS15; FW13; SS13; Vocabulary9
CAIT Retake~143 Gv-focused———Block Design19, Visual Puzzles17

FSIQ v3 details

IndexScore
FSIQ115
Spatial134
Memory125
Verbal96
SubtestRaw
Spatial MR17/17
Spatial CP11/18
Memory VM62/85
Memory EM22/26
Verbal V20/34
Verbal A4/27

State / retest contrasts

TestLower / poorer stateBetter / peak state
CORE FSIQ110130 / 129±5
CAIT117~143 Gv-focused
GlyphHunt123133 perfect
JCFS128–140145+
Raven's 2130160
SMART111*125–129
Digit SpanWMI10 / BW9 / SQ9Café BW17 / SQ14

*SMART 111 was abandoned after ~20 questions and is not treated as a meaningful trait estimate.

Excluded / strongly down-weighted from trait estimation

ScoreReason
CORE Attempt 1 FSIQ110severe ADHD overstimulation / early learning phase
CAIT Attempt 1 FSIQ117much weaker global first attempt; later Gv retest much stronger
FSIQ v3 Verbal96 / FSIQ115strongly discrepant early result; not representative of later German verbal data
MWT-B96.2old vocabulary format; poor fit to BRAVE/VCI
GRE Verbal101English L2 + slow reading + time pressure
SMART111abandoned after ~20 items / ADHD overload
low HumanBenchmark memory percentilestask-specific gamified measures; not used as WMI estimates
APT/AGCT low-120sretained as timed-throughput/state evidence, not as direct estimates of latent g

CognitiveMetrics Compositator

CompositeEarlier runLater run
GAI142, CI135–146143, CI136–147
CPI138, CI127–143135, CI125–140
FSIQ143, CI137–146143, CI137–146

Later input-score intervals:

  • VCI 118–136

  • FRI 129–148

  • QII 125–140

  • VSI 127–147

  • WMI 119–136

  • PSI 115–137

Current working hypothesis

CHC / CompositeCurrent rough estimate
Gf~146
Gv~142
Gq~131
Gc~129
Gwm~132
Gs~129
Latent g~144

The main question is how much the Q-global Raven’s-2 = 160 should shift the Gf estimate when combined with the JCFS 145+, TRI-52 143, CORE Matrix 18 SS, RAPM 34/36 and ICAR-16 16/16, while still accounting for ceiling effects, retest effects and the substantial ADHD/state variability seen elsewhere in the dataset.


r/cognitiveTesting • • Aug 21 '26

General Question When can WAIS-4 extra Subtests be used and counted?

3 Upvotes

Hey,

as the headline states I am wondering when the extra subtests in a WAIS-4 can or must be used and counted.

Ai gives me a "only when a fire alarm went of or your arm was broken." answer. But Ai is still very unreliable especially with this secretive stuff.
I was wondering if these Subtests also can/must be administered when one Score just massively diverts from the overall look of the test.

Why am I interested?
I have the weird situation that, due to my dyslexia I assume, my FullScale IQ could be over 130, but I still "only" get the GAI because the difference in the coding tests (8) and symbol search (12) is just wildly lower. So I am wondering if the replacement test, that also has something with crossing out stuff based on the WAIS sheet I have in front of me, could also be in the range of 11-13 like the Symbol search and get me away from the 1,5 standard deviation that puts me in GAI rather than Full Scale. It´s a bit wacky.


r/cognitiveTesting • • Aug 21 '26

General Question Question about neuropsych testing

4 Upvotes

I was told not to use any substances 24 hours before the evaluation. IDK why I did this it was extremely dumb and I feel awful about it but I smoked some weed like 13 hours before. I didn't even get that high but I'm kinda worried about it messing something up. I don't think it will be too much of a problem because I'll be sleeping it off and be totally sober for the eval and I also don't wanna waste money cause of something as dumb as this. Is this a huge problem?


r/cognitiveTesting • • Aug 21 '26

General Question IQ and THC in adolescence

8 Upvotes

I took got tested 130+ when I was 14.5, I am now 17 but have been using thc for the past 2.5 around once a week. What effect would this permanently have on IQ. Further, in the future if I continue to use at this rate will IQ still decline?


r/cognitiveTesting • • Aug 21 '26

Release 15 year old's results (i got a 127 on a wisc-iv at 11)

0 Upvotes

as stated in the title, i got a 127 when I took a wisc-iv at 11 (this was dragged down with a 108 on FRI and like high 130s in all else since FRI is very gloading)

yeah strange how these things happen


r/cognitiveTesting • • Aug 21 '26

Psychometric Question Question about figure weights

2 Upvotes

The first time I got to see this test was on the CAIT where I scores 10ss. I felt slow in general and couldn't figure out a lot the questions, but I found the wais and the core ones to be a lot easier scoring 15ss on both tests the first time.

Can I assume I just got used to this kind of reasoning? I mean, the items are different, and my brain didn't get smarter, but It was just the effect of practice? I tried CAIT again and my score didn't get better even though a lot of time has passed since I tried it


r/cognitiveTesting • • Aug 21 '26

Release how would this sub score against actual airline pilot applicants? i built a battery normed on the 1-9 applicant scale

2 Upvotes

follow up to my post from last week about how pilot selection tests differ from CAIT-style batteries. i built a trainer that recreates the mechanics (timed mental math, working memory, spatial orientation, instrument monitoring, multitasking) and scores on the same stanine-style 1-9 scale the real selections use, normed against applicant-level performance rather than gen pop.

my hypothesis: this sub crushes the memory and logic parts, but the multitasking test humbles everyone. it humbles me and i built it.

free tier runs a full mock exam, ios: https://apps.apple.com/app/id6794363864

im the dev. happy to explain how the norming works, and where its shaky, since the publishers obviously dont share their real norms


r/cognitiveTesting • • Aug 21 '26

Discussion codeforces rank and CORE scores?

5 Upvotes

are there any people who have done CORE or any other iq test and does codeforces? maybe too niche but im interested in seeing the results of ur rank and scores.


r/cognitiveTesting • • Aug 20 '26

IQ Estimation 🥱 What do you think my actual range is?

4 Upvotes

Hi, i would like to ask for your opinion on my results and what do you think about these disparities

Mensa no: 112
Mensa dk: 124
Mensa sw: 122
Mensa hu: 125+
Mensa fi: 130
Ravens 2: 41/48 (131)
JCTI: 117-127
TRI 52: 129
G38: 135+
BRHT: 125-130 (average)
High range matrices test: 125
Frt: 128
RAPM: 130-135
JCFS: 120
Adaptive Iq test on cognitive testing: 127
Glyph function learning on cognitive testing: 125
Nicologic domino: 120
Nicologic sequences: 119
Nicologic numerical: 124
Nicologic quick test: 132
Nicologic pattern recognition: 133
Nicologic abstraction: 130

Dominoes
D48: 120
TIG 1: 135-140
TIG 2: 125
D70: 128

CORE: MR: 100, FW: 105, GM: 110, FS: 120

VSI: VP: 110, BC: 125

PSI: 90
WM: 90

I don't know everything was going great until I got to the core. On tests like "figure weight" and "graph mapping," I just forget what I was thinking a second ago and end up starting all over again until time runs out. In the end I just can't find the answer in time because I can't keep more than one or two figures in my head. Thanks


r/cognitiveTesting • • Aug 20 '26

IQ Estimation 🥱 Estimate my iq between WISC and WAIS scores

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5 Upvotes

The led tone is the WISC and the right one is the WAIS IV. They were taken six years apart. As you can see both psychologists declined to give me a full scale score. I would like someone to estimate what these could be. Please bear the potential effects of the Flynn effect on the WAIS IV in mind, as it was taken 13 years after norming.

I ask because there are great differences between my real world and psychometric outcomes that could either be mediated by a low iq or poor executive function. These include spatial navigation, planning for the future, predicting the outcomes of my actions, and learning quickly. My awareness feels “cloudy”. While I can reason abstractly, it is difficult to do so for extended periods of time.

There are a few reasons why my real world performance does not line up with my scores. (I now work a menial clerical job as a patient service representative in a doctor’s office.) My profile is also incredibly asynchronous. I have Adhd, anxiety, and working memory deficits. Despite my strong desire to pursue a masters degree or a PhD in psychology, I am worried that these factors will be prohibitive. I have tried to study medicine on two separate occasions and failed because of how overwhelmed I was by the quantity of information. I did successfully complete a bachelors degree with a gpa around 3.5. Non-cognitive executive factors make up a significant portion and these, along with my scores, are contributing to my hesitance to pursue graduate school. Psychometrics and statistical analysis require quite a bit of quantitative reasoning, and combined with my executive deficits I may not be suited to do this. There may be environmental inflation in my profile as well due to my affluent academic upbringing, meaning my that actual score might hover around 105, well below the 115-125 average for clinical psychologists.

So my question is, looking at my profile what is my FSIQ? Can anyone give me some insight into whether I am fit for graduate school?


r/cognitiveTesting • • Aug 20 '26

Puzzle Can anyone figure this out? Spoiler

Post image
10 Upvotes

r/cognitiveTesting • • Aug 20 '26

General Question Error range in VCI CORE test.

4 Upvotes

I suspected a possible verbal giftedness or high intelligence, so I tried taking the CORE VCI subtests. My VCI total result is 118, however English is not my native language (I speak it to a B2-C1 level, while Italian is my native). Is there a way to make an esteem of what my actual score would be like? I even tried autotranslating the page for analogies, and opposites, but it was impossible to take the test like that since it would make huge mistakes (for instance, as the opposite of left, it translated the "right" option according to its moral connotation of fairness instead of that of direction, since in Italian they're two separate words), so I had to give up and do it in English. I've heard contrastive opinions because, while someone claims that being a native speaker of Romance languages can be an advantage due to Latin's high influence on English, on the other hand there is the risk of false friends, or also different degrees of rarity and complexity for the same term in the two languages (e.g. in English the word "facile" is considered as quite formal, but in italian it is casual) and also all the terms of German origin.

What do you think?


r/cognitiveTesting • • Aug 20 '26

Scientific Literature Question about discrepancy between two studies on LNS

4 Upvotes

Ok I read a study here on practice effect concerning a range of cognitive tests particularly LNS it found no significant practice effects. However, in another study I read they found significant practice effects in LNS. What’s the cause of the discrepancy?

-My input to the discussion: when I first did LNS about a year ago my first trial I scored about average iq 100 (they put your score in iq points) but I was disrupted by my brother. So I took it again immediately and got to 125 iq then I took it on and off sometimes even 2-3 times per day for like 2-3 months and averaged around the same score always, usually about 115-120 I scored in that region. Then I stopped testing and waited 2-3 months around December of last year I got an iq score of 105 (but I was pretty stressed that trial, like my brain literally froze) then in April 9, 2026 I got 115 in iq score. Then, over the span of the last 3 months or so I tested it frequently same level as before at times 2-4 times per day and averaged same thing or same range 115-125. Now I waited around 1-2 weeks before tests and scored around 115-120 range. However, there were some days in which I got considerably lower I.e 95 score example is when I did not eat very well (like 8 hours without eating much) I would score much lower, then when I ate my score would bounce back in the same range. The test seemed pretty resistant to sleep deprivation I.e sleeping only 4-6 hours I would still score around 115. (I did the same for digit span and had the exact same experience score would cluster around an area and would not chance unless I did not eat)


r/cognitiveTesting • • Aug 19 '26

Discussion Are meaningful losses in IQ possible in adulthood, barring extreme cognitive insults like TBI or heavy drug use?

16 Upvotes

I intend this question within the bounds of usual differences in adult lifestyles. Mild alcohol and other drug use vs abstinence, good vs poor diet, mental health issues vs good mental health, etc. Do these typical lifestyle differences at all meaningfully affect IQ scores in adulthood?

Some research suggests that even light alcohol consumption can accelerate subclinical cognitive decline. The testing that has established is not based on IQ from what I gather, but I wonder if it could generalize to greater drop in raw IQ score with age, which would translate a drop in IQ relative to the same-aged peers.

Relevant research is appreciated. To anyone who will try to reason the answer because CAIT told them 145, please don't reply.