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C3 weakened

For understanding continuous (linear) text in depth, reading on paper gives somewhat better comprehension on average than reading the same text on a screen among readers beyond early primary school, and readers on screen tend to overestimate how well they have understood. The average paper advantage has not been shown for first-grade beginner readers of short linear texts.

Status: weakened
Last change: 2026-09-30
Serves: Q2 (How do we achieve optimal learning when AI and screens are everywhere?)
Ages: overgripande; strongest evidence in university students (vuxen-livslangt; Li & Yan 2024 finds a significant paper advantage only in its university subgroup); school-age evidence from grade 8 and grade 10 in Norway (Jensen, Roe & Blikstad-Balas 2024; Mangen et al. 2013), from Italian grade 7 lengthy informational texts with null medium main effect (Ronconi, Altoè & Mason 2025; kill-condition test survived 2026-09-30, calibration not tested), and from upper-secondary VET (Foss, Støle & Magyari 2026); first-grade beginner readers are outside the average paper advantage (Florit et al. 2025: no screen-inferiority main effect); see Bounds for schoolchildren in Salmerón et al. 2024 and for children aged 1–8
Relates to: C3 relates-to C1 (the bank explains part of the paper advantage as calibration: screen readers overestimate their understanding (Clinton 2019; Singer & Alexander 2017; the metacognitive mechanism in Delgado et al. 2018). That is the gap between feeling that something is known and being able to access it on a test, which C1 draws between exposure and accessibility. Thematic, not a dependency: C3 does not need C1 to be true).
Bounds: The average effect is small (Delgado et al. 2018 g ≈ −0.21; Clinton 2019 g ≈ −0.25) and is scoped to readers beyond early primary school. Delgado's same-text between-participant subgroups favour paper in grades 1–6 (g = −.19), grades 7–12 (g = −.15) and undergraduates (g = −.28), with educational level not a significant moderator. The newest meta-analysis (Li & Yan 2024; 46 experiments, 2000–2022; I² ≈ 92 %) found no overall difference (g = 0.046, ns), but that null is carried by interactive or enhanced digital texts (g = 0.959, digital better), literary texts (mostly children's storybooks) and kindergarten studies; inside this claim's scope its estimates favour paper (university g = −0.432; time-limited g = −0.468; 1000–2000-word texts g = −0.391; informational g = −0.218, p = .053; non-interactive g = −0.172, ns). Its school-age subgroups (primary, middle school) lean digital but are not significant and are dominated by interactive e-books. It pooled no calibration outcome and did not separate comprehension depth or device. Kill-condition test survived 2026-09-28. Foss, Støle & Magyari 2026 (Norwegian VET, n=106, within-subjects, informational texts on own laptop vs print): whole-sample screen inferiority (OR=1.44; print M=4.15 vs digital M=3.42); significant in the lower-comprehension subgroup, trend only in the higher (p=.073); kill-condition test survived 2026-09-29 (calibration not tested). Ronconi, Altoè & Mason 2025 (Italian grade 7, N=191, mixed design; two ~1000-word informational texts; paper vs scrolling desktop PDF): no significant medium main effect on literal or inferential comprehension; lower perceived cognitive load on screen; calibration not tested; kill-condition test survived 2026-09-30 (prong a met for this design; prong b untested). First-grade beginner readers of short linear texts: Florit et al. 2025 (N=58, within-subjects) found no significant medium main effect on main-point, literal, or inferential comprehension; for descriptive texts tablet beat paper on main-point (d ≈ 0.57) and literal (d ≈ 0.59). The advantage is for informational/expository text; for narrative-only text it is not significant (Delgado) or about zero (Clinton). Time limits make the screen disadvantage larger (Delgado: time-limited g = −.26, self-paced g = −.09, ns; Li & Yan 2024: time-limited g = −0.468, free reading g = 0.192, ns); whether any paper advantage remains with self-paced reading is open question 4. Much of the gap is tied to scrolling: with scrolling paper is clearly better, with paginated (no-scroll) display the differences are small or uncertain (Clinton-Lisell & Litzinger 2026). On handheld devices (tablet, e-reader) the disadvantage is about half as large, and between studies it was larger for undergraduates than for schoolchildren, for whom it was not significant (Salmerón et al. 2024). Display technology alone (LCD vs e-ink) does not explain the gap (Siegenthaler et al. 2012). Main-idea understanding is about equal; key points and other details are better on paper (Singer & Alexander 2017). For children aged 1–8, plain digitisation of a story lowers comprehension, but story-congruent digital enhancements can beat paper (Furenes, Kucirkova & Bus 2021). Much of the evidence for the average paper advantage is from studies up to 2017 and from university students.
Does-not-transfer-to: "Digital reading" in the PISA sense (navigating hypertext, evaluating sources), which the bank treats as a different construct (OECD PISA 2009).
What would kill this: A meta-analysis or RCT in the relevant age group (beyond early primary) in which screen is at least as good as paper for deep comprehension with equal reading time, and the calibration gap disappears. Bank wording (Swedish, verbatim): "Meta/RCT i relevant ålder där skärm ≥ papper för deep comprehension under likvärdig tid och kalibreringsgapet försvinner."
Tutor consequence: none yet

Attack record

4 attacks: 3 survived, 1 narrowed

2026-09-27 narrowed

Attack: Among first-grade beginner readers of short continuous linear texts, screen comprehension is at least as good as paper, so the claim’s average paper advantage does not hold for early primary readers.
Target: claim-text
Source: Florit et al. 2025
Steelmans to: The living “on average” paper advantage overreaches beginner readers; medium main effects are absent in grade 1, and tablet can equal or exceed paper on some superficial measures for descriptive text.
Why: Nightly-attacks 2026-09-27 04:11 Europe/Stockholm (first 04:05 run). Named within-subjects result (N=58): no significant medium main effect on main-point, literal, or inferential comprehension; for descriptive texts tablet beat paper on main-point (d ≈ 0.57) and literal (d ≈ 0.59). Does not kill the older-learner / meta average (Delgado/Clinton) or erase the calibration conjunct for those groups. Claim and Bounds rewritten same turn to scope the average paper advantage beyond early primary / beginner readers and to name Florit. Brief rewritten. Kill withheld: calibration gap and older-reader metas untouched.
Rewrite: claim-field+brief

2026-09-28 survived

Attack: A meta-analysis of 46 controlled experiments (2000–2022) comparing the same text on paper and on screen finds no overall comprehension difference (g = 0.046, ns) and a digital advantage outside China (g = 0.279), so C3's average paper advantage for continuous text is not established and its kill-condition is met.
Target: kill-condition
Source: Li & Yan 2024 | DOI 10.1016/j.teler.2024.100142
Steelmans to: The newest and broadest pooled estimate (k = 46 effects from 37 papers) shows screen ≥ paper overall; no school-age subgroup (kindergarten g = 0.866, primary g = 0.688, middle school g = 0.204) shows a paper advantage; so Delgado 2018 and Clinton 2019 do not hold beyond university students, and C3's “beyond early primary” average falls.
Why: Attack run 2026-09-28 07:48 Europe/Stockholm (daytime run on Jonatan's request; full text supplied by Jonatan and read in full; resolves open question 4). Sign convention: positive g = digital better (pp. 5–6). Kill-condition needs (a) screen ≥ paper for deep comprehension of continuous text under equal time in the relevant age band and (b) the calibration gap to disappear. (a) not met: the overall null (random effects g = 0.046, CI −0.192 to 0.283, p = 0.706, I² = 91.79 %; Table 2, p. 6) is carried by subgroups outside C3's scope — interactive/enhanced digital texts (AR, multimedia, annotation; g = 0.959, k = 11), literary texts (g = 0.968, k = 12, mostly children's storybooks) and kindergarten (g = 0.866, k = 8). Inside C3's scope the estimates favour paper: university g = −0.432 (CI −0.654 to −0.21), time-limited reading g = −0.468 (CI −0.75 to −0.186), 1000–2000-word texts g = −0.391 (CI −0.633 to −0.150), informational text g = −0.218 (CI −0.439 to 0.002, p = 0.053), non-interactive digital g = −0.172 (CI −0.404 to 0.061, ns) (Table 3, p. 7) — the same size as Delgado/Clinton (−0.21/−0.25), less precise. The digital-leaning school-age subgroups (primary k = 6, middle school k = 8, both ns) are dominated by AR and interactive e-books, not the same text read plainly, whereas Delgado 2018's same-text between-participant subgroups favour paper in grades 1–6 (g = −.19) and 7–12 (g = −.15) (Table 1). The “other countries” g = 0.279 contains nearly all the kindergarten and interactive studies. Comprehension depth is not separated (p. 3), devices are not distinguished (p. 8), no publication-year moderator, scrolling not coded. (b) not tested: no calibration outcome is pooled; overestimation appears only as narrative in the Discussion (p. 7). Kill-condition not met on either prong. Claim text unchanged (not rewritten). Bounds record the kill-test and the in-scope estimates. Leftover (not applied, held as open question 4): with free reading time Li & Yan g = 0.192 (ns) and Delgado 2018 self-paced g = −.09 (ns), so whether any paper advantage remains without time limits is open.
Rewrite: none

2026-09-29 survived

Attack: Among Norwegian upper-secondary vocational students reading the same informational texts on their own laptops versus printed A4, screen comprehension is at least as good as paper, so C3's average paper advantage beyond early primary is not established for this school-age band and its kill-condition is met.
Target: kill-condition
Source: Foss, Støle & Magyari 2026 | DOI 10.1080/00313831.2025.2506387
Steelmans to: Kill-condition prong (a) fails if a same-text school-age RCT finds screen ≥ paper for deep/informational comprehension under matched presentation.
Why: Nightly-attacks 2026-09-29 04:16 Europe/Stockholm. Named within-subjects result (n=106 VET, M=16.5): whole-sample screen inferiority (χ²(1)=14.165, p<.0001, OR=1.44 for print; print M=4.15 vs digital M=3.42, ~0.64 points). Significant in lower-comprehension subgroup (n=58, p=.0003); trend only in higher (n=48, p=.073). Kill-condition not met: screen was worse, not ≥ paper; calibration (prong b) not tested. Clause tested: school-age / VET informational continuous text on laptop vs paper. Claim field unchanged; Bounds note Foss kill-test survived and the lower-performer concentration.
Rewrite: none

2026-09-30 survived

Attack: Among Italian seventh graders reading the same lengthy (~1000-word) informational science texts on a scrolling desktop screen versus paper, screen comprehension is at least as good as paper on literal and inferential measures, so C3's average paper advantage beyond early primary fails and its kill-condition is met.
Target: kill-condition
Source: Ronconi, Altoè & Mason 2025 | DOI 10.1016/j.lindif.2024.102604
Steelmans to: Kill-condition prong (a) fails if a same-text school-age experiment finds screen ≥ paper for deep/informational comprehension under matched presentation with scrolling.
Why: Nightly-attacks 2026-09-30 04:19 Europe/Stockholm. Named mixed-design result (N=191 grade 7, M=12.42): no significant main effect of medium on literal or inferential comprehension of ~1000-word informational texts (paper vs desktop PDF with scrolling); authors conclude results "did not support a screen inferiority effect". Kill-condition not fully met: prong (a) is met for this school-age lengthy informational design (screen ≥ paper), but prong (b) calibration/overestimation was not measured. Immediate test only. Clause tested: lower-secondary continuous informational text on scrolling desktop vs paper. Claim field unchanged; Bounds note Ronconi kill-test survived and the untested calibration prong.
Rewrite: none

Linked sources

15 linked sources (10 supports, 10 limits)

Supports (10)

Source	Basis
MEDIA-002 · Reading from paper compared to screens: A systematic review and meta-analysis (2019)	Meta: screen g = −0.25 (expository −0.32, narrative ≈ 0); better calibration on paper, screen readers overestimate comprehension.
MEDIA-001 · Don't throw away your printed books: A meta-analysis on the effects of reading media on reading comprehension (2018)	Meta: paper > screen g ≈ −0.21; time limits increase the screen disadvantage; not significant for narrative-only texts.
MEDIA-013 · The impact of reading medium on text comprehension among vocational students (2026)	VET within-subjects: whole-sample screen inferiority (OR=1.44); kill-condition test survived 2026-09-29.
MEDIA-011 · A Comparison of Children’s Reading on Paper Versus Screen: A Meta-Analysis (2021)	Children 1–8: plain digitisation of the same story lowered story comprehension.
MEDIA-004 · The smell of paper or the shine of a screen? Students’ reading comprehension, text processing, and attitudes when reading on paper and screen (2024)	Grade 8 (Norway), eye-tracking: screen gives shallower processing and can lower comprehension; pupils did not notice the difference. Small N.
MEDIA-012 · Which reading comprehension is better? A meta-analysis of the effect of paper versus digital reading in recent 20 years (2024)	Kill-condition test survived 2026-09-28: inside C3's scope the pooled estimates favour paper (university g = −0.432; time-limited g = −0.468; 1000–2000 words g = −0.391; informational g = −0.218, p = .053).
MEDIA-003 · Reading linear texts on paper versus computer screen: Effects on reading comprehension (2013)	Grade 10 (Norway), N=72: paper better after controls for vocabulary, decoding, pretest and gender.
MEDIA-014 · Ink and pixels: Impact of highlighting and reading self-efficacy on adolescents' cognitive load, epistemic emotions, and text comprehension (2025)	Grade-7 mixed design: no medium main effect on literal/inferential comprehension of ~1000-word informational texts with scrolling; kill-condition test survived 2026-09-30 (calibration not tested).
MEDIA-005 · Reading comprehension on handheld devices versus on paper: A narrative review and meta-analysis of the medium effect and its moderators (2024 (preprint manuscript 2023; publicerad Journal of Educational Psychology 116(2), 153–172))	Meta: screen inferiority remains on handheld devices, about half the size of computer-based metas.
MEDIA-006 · Reading Across Mediums: Effects of Reading Digital and Print Texts on Comprehension and Calibration (2017)	Students prefer digital and believe they understand better on screen; key points better on paper; about 69 % miscalibrated.

Limits (10)

Source	Basis
MEDIA-008 · Decoding digital reading: a network meta-analysis of comprehension across devices (2026 (online/accept 2025; UND Scholarly Commons 2026-01-04))	Network meta: paper clearly better with scrolling; with paginated (no-scroll) display differences are small/uncertain.
MEDIA-009 · Reading from paper, computers, and tablets in the first grade: The role of comprehension monitoring (2025)	Grade-1 within-subjects: no screen-inferiority main effect; tablet ≥ paper on some superficial descriptive measures. Narrows average paper advantage away from beginner readers.
MEDIA-013 · The impact of reading medium on text comprehension among vocational students (2026)	Medium effect significant in lower-comprehension subgroup; trend only in higher (p=.073).
MEDIA-011 · A Comparison of Children’s Reading on Paper Versus Screen: A Meta-Analysis (2021)	Story-congruent digital enhancements can beat paper for young children.
MEDIA-007 · Use of tablets in primary and secondary school – a case study (2016)	Case study, not a direct paper-vs-screen comprehension test: tablets helped only when teaching changed.
MEDIA-012 · Which reading comprehension is better? A meta-analysis of the effect of paper versus digital reading in recent 20 years (2024)	Newest meta (2000–2022): no overall difference (g = 0.046, ns; I² ≈ 92 %); free reading g = 0.192 (ns); school-age subgroups digital-leaning and ns but dominated by interactive e-books (interactive g = 0.959). No calibration outcome pooled.
MEDIA-010 · PISA 2009 Results: Students On Line — Digital Technologies and Performance (Volume VI) (2011)	Digital reading (hypertext navigation, source evaluation) is a different construct; outside the claim.
MEDIA-014 · Ink and pixels: Impact of highlighting and reading self-efficacy on adolescents' cognitive load, epistemic emotions, and text comprehension (2025)	Immediate test only; calibration not measured; lower perceived cognitive load on screen.
MEDIA-005 · Reading comprehension on handheld devices versus on paper: A narrative review and meta-analysis of the medium effect and its moderators (2024 (preprint manuscript 2023; publicerad Journal of Educational Psychology 116(2), 153–172))	Between studies, no significant screen inferiority for schoolchildren (larger for undergraduates).
MEDIA-009 · LCD vs. E-ink: An Analysis of the Reading Behavior (2012)	LCD ≈ e-ink in reading behaviour; display technology alone does not explain the paper-screen gap.

Review state: first-pass draft, pending human review.