Stack Exchange — cogsci.stackexchange.com

The content of cogsci.stackexchange.com (https://cogsci.stackexchange.com/), a Stack Exchange question-and-answer site, as published in the Stack Exchange Data Dump of April 2024 on the Internet Archive. The posts table holds 43,746 rows: 17,113 posts (8,053 questions, 8,390 answers, 330 tag wiki excerpts, 330 tag wikis, 6 posts of type 6 and 4 posts of type 7) and 26,633 comments, written between 6 June 2011 and 29 March 2024. Beside it are 28,198 user accounts, 86,559 votes, 36,448 badges awarded, 408 tags, 66,177 post revisions and 2,428 links between posts. Every answer keeps the question it answers and every comment the post it was written on, so the threads can be rebuilt. The Internet Archive item describes the dump as anonymised; the votes table names the voter in only 368 rows.

#Cognitive science#Expertise network#Reputation#Stack exchange data dump

Download data package README Original files as received BibTeX JSONSimilar datasets

Analytics

The interactive network needs JavaScript.

· graph.json

The full graph has 4,150 nodes; this view shows the 1,000-node sample the pipeline drew for display. Node size is centrality, colour is community.

4.2K
Nodes
6.3K
Edges
3.66e-04
Density
183
Components
-0.1491
Assortativity
1.3%
Reciprocity
2.6K
Bridges
Most central nodes
520.01759
9530.01663
43970.01326
190.00868
3700.00844
290.00771
44250.00747
8490.00747
130.00699
200.00675
Content metrics

43,746 records scored · min–maxmean ± 0.675 σ (the interquartile range if the values are roughly normal)mean

x scoreμ 1.714 ± 3.338
min -6max 178
x view countμ 1.3K ± 7.1K
min 5max 244.9K
x answer countμ 1.042 ± 0.994
min 0max 12
x comment countμ 1.556 ± 2.284
min 0max 27
10.6
Flesch–Kincaid grade
US school grade level
11.3
Automated readability index
Frequent terms
questionpeoplebrainlikeanswertimethinkresearchdifferentexampleknowdoncognitivepsychologymemorypersonwayinformationstudyusefindgoodselfsociallearningstudiestheoryeffectworkbasedfoundhumantestquestionsdatatermpersonalityneedrelatedthingswantspecificmindbetterexperiencegeneralevidencementalbehaviorread
Topic clusters

Topic 0

disorder
emotion
mental
symptom
depression
therapy
anxiety
stress

Topic 1

neuron
cell
potential
network
neural
spike
brain
fire

Topic 2

question
answer
edit
comment
post
ask
vote
site

Topic 3

science
cognitive
consciousness
theory
psychology
mind
question
think

Topic 4

test
score
datum
measure
scale
item
analysis
distribution

Topic 5

memory
word
language
remember
learn
recall
term
read

Topic 6

visual
brain
eye
color
light
image
cortex
vision

Topic 7

woman
gender
man
sexual
sex
male
child
attachment

Topic 8

people
person
social
self
group
empathy
belief
behavior

Topic 9

dopamine
serotonin
drug
receptor
effect
addiction
alcohol
release

Topic 10

link
reference
citation
answer
add
paper
source
cite

Topic 11

eeg
signal
electrode
frequency
wave
brain
datum
activity
Show all 20 topics

Topic 12

personality
trait
big
factor
hexaco
correlation
neuroticism
extraversion

Topic 13

thank
answer
appreciate
question
helpful
edit
bounty
help

Topic 14

autism
adhd
autistic
disorder
asperger
spectrum
diagnosis
asd

Topic 15

game
player
play
chess
gamification
video
team
system

Topic 16

music
time
exercise
song
effect
task
perception
study

Topic 17

dream
lucid
wake
dreaming
recall
experience
sleep
memory

Topic 18

auditory
sound
frequency
binaural
speech
beat
tone
pitch

Topic 19

sleep
wake
hour
day
time
bed
deprivation
clock
Top hashtags
#145
#235
#322
#v20
#413
#58
#65
#diagnosis5
#psychology5
#sthash5
#74
#cite_note4
#page4
#causes3
#criticism3
#references3
#reproducibility_controversy_and_conflicting_meta_analyses3
#t3
#0067002
#102

Computed over the full corpus.

Record

Catalog key
stackexchange-cogsci-stackexchange-com
Authors
Stack Exchange, Inc.
Year
2024
Source paper
Stack Exchange Data Dump
License
CC BY-SA 3.0 / 4.0 (by contribution date) (CC-BY-SA-3.0 AND CC-BY-SA-4.0)
Records
52,160
Nodes
4,150
Edges
6,301 (directed)
Nodes are
user (Stack Exchange account)
Edges are
answer collaboration (A answered B's question)
Attributes
nodes have attributes; edges have attributes
Text corpus
question titles, post bodies, comment text, tag names
Languages
en
Collected
2011/2024 (2010s, 2020s)
Tasks
From the graph: link prediction, community detection
Region
Global (inferred: the platform is used worldwide)

Provenance

Originally published at
https://archive.org/details/stackexchange link checked
Original files as received
The source files, unconverted, kept for reference: mirrored on echo.directory on 2026-10-09, 26.7 MB across 1 files. Checksums in MANIFEST.json. For use, start with the data package below.
Data package
Version 1.0.0 of this dataset as an ECHO Data Package: posts (43,746 rows), users (28,198 rows), x_votes (86,559 rows), x_badges (36,448 rows), x_tags (408 rows), x_post_history (66,177 rows), x_post_links (2,428 rows).
Structure
Temporal (timestamped), Node attributes, Text, Threaded conversations

How to cite

BibTeX

@misc{echo2026,
  title  = {ECHO: Exploratory Compendium of Humanity Online},
  author = {Switzer, Braden and Zafarani, Reza},
  year   = {2026},
  url    = {https://echo.directory},
  note   = {Syracuse University}
}

@misc{stackexchange_2024,
  title     = {Stack Exchange Data Dump},
  author    = {{Stack Exchange, Inc.}},
  year      = {2024},
  month     = {apr},
  publisher = {Internet Archive},
  url       = {https://archive.org/details/stackexchange}
}

APA

Switzer, B., & Zafarani, R. (2026). ECHO: Exploratory Compendium of Humanity Online [Data repository]. Syracuse University. https://echo.directory

Stack Exchange, Inc. (2024). Stack Exchange — cogsci.stackexchange.com [Data set]. https://stackexchange-cogsci.echo.directory/

MLA

Switzer, Braden, and Reza Zafarani. ECHO: Exploratory Compendium of Humanity Online. Syracuse University, 2026, echo.directory.

Stack Exchange, Inc. Stack Exchange — cogsci.stackexchange.com. 2024, stackexchange-cogsci.echo.directory/.

BibTeX · RIS · CSL-JSON

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