Observer-expectancy effect: Revision history

4 May 2026

• curprev 06:3406:34, 4 May 2026 Citation bot talk contribs 10,113 bytes +36 Alter: first2, journal, pages. Added bibcode. Formatted dashes. | Use this bot. Report bugs. | Suggested by Headbomb | #UCB_toolbar undo

1 March 2026

• curprev 16:3016:30, 1 March 2026 JCW-CleanerBot talk contribs m 10,077 bytes +17 →Prevention: mark free doi undo Tag: AWB

25 February 2026

• curprev 10:5910:59, 25 February 2026 Snowman304 talk contribs 10,060 bytes −26 →Prevention: updated citations undo Tags: Mobile edit Mobile app edit Android app edit App section source Advanced mobile edit
• curprev 04:0304:03, 25 February 2026 Evathedutch talk contribs m 10,086 bytes +195 Added additional source undo Tag: Visual edit
• curprev 04:0204:02, 25 February 2026 Evathedutch talk contribs 9,891 bytes +925 Expanded prevention section with sources undo Tag: Visual edit

23 February 2026

• curprev 00:5500:55, 23 February 2026 Snowman304 talk contribs 8,966 bytes −72 cs1 config, combined duplicate citations undo
• curprev 00:5200:52, 23 February 2026 Snowman304 talk contribs 9,038 bytes +81 script-assisted date audit and style fixes per MOS:NUM | Alter: pages, title. Add: pmid, authors 1-1. Removed URL that duplicated identifier. Removed parameters. Some additions/deletions were parameter name changes. | Use this tool. Report bugs. | #UCB_Gadget undo

19 February 2026

• curprev 13:4813:48, 19 February 2026 Python Drink talk contribs 8,957 bytes −4 No edit summary undo Tags: Mobile edit Mobile web edit Advanced mobile edit

16 February 2026

• curprev 07:0107:01, 16 February 2026 OAbot talk contribs m 8,961 bytes +63 Open access bot: url-access=subscription, pmc updated in citation with #oabot. undo

3 February 2026

• curprev 17:3317:33, 3 February 2026 Evathedutch talk contribs 8,898 bytes +1,435 Expanded Prevention section undo Tags: Visual edit Newcomer task Newcomer task: references
• curprev 17:3017:30, 3 February 2026 Evathedutch talk contribs 7,463 bytes +872 Expand Intro undo Tags: Visual edit Newcomer task Newcomer task: references

11 January 2026

• curprev 16:4316:43, 11 January 2026 Shhhnotsoloud talk contribs 6,591 bytes −11 Move hatnote text to See also: this article title is not ambiguous (WP:NAMB) undo

11 November 2025

• curprev 14:2914:29, 11 November 2025 Monkbot talk contribs m 6,602 bytes +9 →Overview: Monkbot/task 21: Replace page(s) with article-number; undo Tag: AWB

4 November 2025

• curprev 22:5922:59, 4 November 2025 Citation bot talk contribs 6,593 bytes −53 Add: authors 1-1. Removed URL that duplicated identifier. Removed parameters. Some additions/deletions were parameter name changes. | Use this bot. Report bugs. | Suggested by EatingCarBatteries | Category:CS1 maint: article number as page number | #UCB_Category 70/842 undo

3 November 2025

• curprev 23:3423:34, 3 November 2025 RvNxSuperior talk contribs 6,646 bytes +310 added reference undo Tags: Visual edit Newcomer task Newcomer task: references

24 March 2025

• curprev 01:3001:30, 24 March 2025 RussBot talk contribs m 6,336 bytes +39 Robot: Editing intentional link to disambiguation page in hatnote per WP:INTDABLINK (explanation) undo Tag: Disambiguation links added

19 March 2025

• curprev 22:4722:47, 19 March 2025 AlyInWikiWonderland talk contribs 6,297 bytes +19 Tweak. undo Tag: Disambiguation links added

28 July 2024

• curprev 07:0207:02, 28 July 2024 GuccizBud talk contribs m 6,278 bytes −35 →Prevention: Copy edit ▸ MTCE tags ▸ Unreferenced section. undo Tags: Mobile edit Mobile app edit Android app edit
• curprev 07:0107:01, 28 July 2024 GuccizBud talk contribs m 6,313 bytes −1 →Overview: Copy edit ▸ Grammar ▸ Paragraphing. undo Tags: Mobile edit Mobile app edit Android app edit

19 June 2024

• curprev 16:0416:04, 19 June 2024 ComeAndHear talk contribs m 6,314 bytes +32 List alternative names in footnotes to enhance readability. undo Tag: Visual edit

29 October 2023

• curprev 14:2414:24, 29 October 2023 Mooonswimmer talk contribs 6,282 bytes +148 {{citation needed}} tags undo Tag: Visual edit
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27 October 2023

• curprev 00:4900:49, 27 October 2023 GuccizBud talk contribs m 6,135 bytes +17 →Overview: Copy edit ▸ Diction ▸ "In what is called" makes no sense here, as this whole article  𝑖𝑠 about the observer-expectancy effect (only). undo Tags: Mobile edit Mobile app edit Android app edit

8 May 2023

• curprev 22:2122:21, 8 May 2023 Maxeto0910 talk contribs 6,118 bytes +15 Added multiple issues hatnote. undo Tags: Mobile edit Mobile web edit Advanced mobile edit

8 June 2022

• curprev 13:4713:47, 8 June 2022 MichaelMaggs talk contribs 6,103 bytes −64 Per WP:SDSHORT and WP:SDNOTDEF undo Tag: Shortdesc helper

28 October 2021

• curprev 00:4200:42, 28 October 2021 Jprg1966 talk contribs m 6,167 bytes +1 →Overview undo
• curprev 00:4100:41, 28 October 2021 Jprg1966 talk contribs 6,166 bytes +44 Added {{More citations needed}} tag undo Tag: Twinkle

29 June 2021

• curprev 20:3420:34, 29 June 2021 Qwerfjkl talk contribs m 6,122 bytes +10 Removed 'a(n)' from the beginning of the short description per WP:SDFORMAT, from a request at Wikipedia:Reward board. (via WP:JWB) undo

6 January 2021

• curprev 00:5800:58, 6 January 2021 Monkbot talk contribs m 6,112 bytes +1 Task 18 (cosmetic): eval 2 templates: hyphenate params (1×); undo Tag: AWB

6 December 2020

• curprev 06:2406:24, 6 December 2020 Monkbot talk contribs m 6,111 bytes −7 Task 18 (cosmetic): eval 2 templates: del empty params (1×); undo Tag: AWB

17 April 2020

• curprev 18:2718:27, 17 April 2020 Biogeographist talk contribs 6,118 bytes −298 added Template:Fallacies; hatnote goes before cleanup templates undo

24 February 2020

• curprev 04:2904:29, 24 February 2020 SUM1 talk contribs 6,416 bytes +115 Adding local short description: "An experiment participant altering their behaviour in response to a researcher's expectation", overriding Wikidata description "Form of reactivity in which a researcher's cognitive bias causes them to subconsciously influence the participants of an experiment" (Shortdesc helper) undo

12 February 2020

• curprev 17:0717:07, 12 February 2020 AnomieBOT talk contribs m 6,301 bytes +19 Dating maintenance tags: {{Content}} undo
• curprev 15:0615:06, 12 February 2020 Wikipedian Right talk contribs m 6,282 bytes +38 Edit war prevention. undo

11 February 2020

• curprev 14:4414:44, 11 February 2020 Megaman en m talk contribs 6,244 bytes −516 Reverted 1 edit by 1.64.193.178 (talk): Unexplained revert (TW) undo Tag: Undo
• curprev 14:1514:15, 11 February 2020 1.64.193.178 talk 6,760 bytes +516 Undid revision 940233659 by Megaman en m (talk). Reason undo Tag: Undo
• curprev 09:0209:02, 11 February 2020 Megaman en m talk contribs 6,244 bytes −516 Reverted good faith edits by 1.64.193.178 (talk): While it is not actual vandalism, it is unsourced and written in an unencyclopedic style (TW) undo Tag: Undo
• curprev 08:4308:43, 11 February 2020 1.64.193.178 talk 6,760 bytes +516 Undid revision 940219155 by Materialscientist (talk). Because you don't like it so it becomes vandalism? undo Tag: Undo
• curprev 06:2306:23, 11 February 2020 Materialscientist talk contribs m 6,244 bytes −516 Reverted 1 edit by 1.64.193.178 identified as test/vandalism using STiki undo Tags: Rollback STiki
• curprev 06:1806:18, 11 February 2020 1.64.193.178 talk 6,760 bytes +516 Clarification with example. undo

2 November 2019

• curprev 16:4516:45, 2 November 2019 Þjarkur talk contribs m 6,244 bytes +2 Reverted 1 edit by 2001:8F8:132F:2537:B568:B4A5:202B:B593 (talk) to last revision by Geekdiva (TW) undo Tag: Undo
• curprev 16:4116:41, 2 November 2019 2001:8f8:132f:2537:b568:b4a5:202b:b593 talk 6,242 bytes −2 No edit summary undo

31 October 2019

• curprev 13:4613:46, 31 October 2019 Geekdiva talk contribs m 6,244 bytes +31 →See also: Alphabetized the entries. Added: * Demand characteristics. undo

9 October 2019

• curprev 11:1511:15, 9 October 2019 Leobenite talk contribs m 6,213 bytes +1 →Prevention undo Tag: Visual edit

7 October 2019

• curprev 23:5323:53, 7 October 2019 BrownHairedGirl talk contribs m 6,212 bytes −8 replace links to deleted portals: Portal:Social sciences → Portal:Society undo Tag: AWB

6 October 2019

• curprev 20:4620:46, 6 October 2019 BD2412 talk contribs m 6,220 bytes +6 →See also: Help clean up from portal deletion., replaced: |Sociology| → |Social sciences| undo Tag: AWB

4 October 2019

• curprev 23:3423:34, 4 October 2019 Þjarkur talk contribs 6,214 bytes −84 Placebos do not work, it is about deviation from the expected result of no result undo Tag: Visual edit: Switched
• curprev 23:3323:33, 4 October 2019 Þjarkur talk contribs 6,298 bytes +20 Splitting some to new article: Observer bias undo
• curprev 23:0223:02, 4 October 2019 Þjarkur talk contribs 6,278 bytes −9,711 This article was a mishmash of unrelated topics: Expectancy bias that changes how the subjects behave, observer bias, and confirmation bias undo Tag: Visual edit: Switched
• curprev 22:4122:41, 4 October 2019 Þjarkur talk contribs 15,989 bytes −356 + hatnote, remove dubious unsourced statements undo Tag: Visual edit