Public Projects

If you think your app could be useful for others, please email chris@otree.org and I can feature it here.

otree-demo

Author

oTree

Description

These are the sample games you get when you download oTree.

Apps

Last updated

2019-05-13

unihd

Apps

pgg Public Good Games in standard and persistent form with variable number of players and 30 + x rounds.
pgg_ending Public Good Games in standard and persistent form with variable number of players and 30 + x rounds.
pgg_instructions Public Good Games in standard and persistent form with variable number of players and 30 + x rounds.

Last updated

2020-02-17

cl-demo

Author

Felix Holzmeister

Description

The apps allow conducting the certainty equivalent method (CEM), the iterative choice list procedure (ICL), the multipe price list method (MPL), and the single choice list procedure (SCL) to elicit individual level risk preferences in different variants and parameterizations by adapting the documented variables in config.py.

Apps

cem Certainty equivalent method as proposed by Cohen et al. (1987) and Abdellaoui et al. (2011), as w...
icl Staircase risk elicitation task as proposed by Falk et al. (2016), Working Paper.
mpl Multiple price list task as proposed by Holt/Laury (2002), American Economic Review 92(5).
scl Lottery choice task as proposed by Eckel/Grossman (2002), Evolution and Human Behavior 23 (4), 28...

Last updated

2019-07-09

bret-demo

Author

Felix Holzmeister

Description

This app allows conducting the Bomb Risk Elicitation Task (BRET) as proposed by Crosetto/Filippin (2013) as an oTree application in numerous different variants by simply altering the documented variables in config.py.

Apps

bret Bomb Risk Elicitation Task (BRET) à la Crosetto/Filippin (2013), Journal of Risk and Uncertainty ...

Last updated

2019-07-09

demo-eet

Author

Felix Holzmeister

Description

The 'eet' app implements the Equality Equivalence Test as proposed by Kerschbamer (2015). The app features a straightforward setup of several variants of the task and can be freely parameterized in a single file (config.py).

Apps

eet This oTree application allows to implement the Equality Equivalence Test (EET) as proposed by Ker...

Last updated

2019-07-09

reaction-demos

Author

oTree

Description

Demos of reaction-time/perception psychology experiments

Apps

jspsych_integration An example showing how to integrate with jsPsych to do reaction-time psych experiments.
stroop Stroop test. If you change the colors, you need to run "otree make_stroop_images" This code uses ...

Last updated

2020-08-28

otree-snippets

Author

oTree

Description

Recipes for common tasks in oTree

Apps

groups_csv Reads groups from a CSV file. Inside this app, you will find a groups6.csv, which defines the gr...
radio_switching_point Table where each row has a left/right choice, like the strategy method. This app enforces a singl...
random_page_order For each participant, randomize the order of tasks A, B, and C. Task B has 2 pages, which are alw...

Last updated

2018-12-25

ancient-woodland-48436

Description

oTree games

Apps

negotiations Echo Chambers

Last updated

2019-09-26

marshall-fbe1

Apps

feedback
quizmulti Quiz for walras
walras Walrasian Equilibrium Selection The only real tricky thing in the software is the implementation...

Last updated

2019-11-07

back-button

Author

Luca Henkel

Description

This is a demonstration on how to implement a back button in oTree using the bootstrap navbar.

Apps

back_button_v1
back_button_v2
back_button_v3

Last updated

2019-09-10

cess-maze-game

Apps

maze_timing

Last updated

2019-05-29

decision-volley

Apps

volleying

Last updated

2020-02-13

continuous-choice

Apps

game Game Play Stage
instructions Instructions Phase
payoff Payoff Phase
practice Practice Stage

Last updated

2019-01-24

experimentwageinequality

Apps

realefforttask multi-round real effort task

Last updated

2019-02-07

floating-harbor-77156

Apps

AtC_game
contribution_game Public Goods Game for groups of 3 with threshold
CRT
final_payment
final_payment_2
lemonade_stand This is a search task experiment that uses leadership roles as a coordination mechanism
memory_debug
Plurality_Vote_Fullinfo Plurality voting contest with full information
social_value_orientation
STAR_voting_CI STAR voting contest with full information
strategic_complexity
strategic_voting Game used to test subject's strategic reasoning in various voting systems using a "level-k" frame...
survey_2
survey_enforcement
turnaround

Last updated

2020-08-28

khealth-productivity

Author

Namun Cho

Apps

basic_survey 기초정보 설문조사
decision_survey Part of the KBERI's experimental study for 부모협동형 대안교육의 현황과 제도적 개선방안 연구
dependent 한국건강증진개발원 흡연 관련 프로젝트의 흡연관련 질문 (종속)
ending 부모협동형 대안교육의 현황과 제도적 개선방안 연구 를 위한 일반인 대상 인식조사
experimental_survey_1 2020 khealth 한국건강증진개발원 금연프로젝트
experimental_survey_2 2020 khealth 한국건강증진개발원 금연프로젝트
experimental_survey_3 2020 khealth 한국건강증진개발원 금연프로젝트
experimental_survey_4 2020 khealth 한국건강증진개발원 금연프로젝트
experimental_survey_5 2020 khealth 한국건강증진개발원 금연프로젝트
health_survey Part of the KBERI's experimental study for khealth
iat IAT (Implicit Association Test) solution for KBERI 2019 research"
introduction 흡연이 노동력 상실에 미치는 영향과 정책방향 연구
nonsmoker 한국건강증진개발원 (khealth.or.kr)의 2020 금연 관련 프로젝트 설문문항(비흡연자쿼터용)
nonsmoker_dependent 비흡연자 대상 흡연의향 종속변수
package_choice 한국건강증진개발원 흡연 관련 프로젝트의 담배갑 선호
risk_attitude
smoker 한국건강증진개발원 (khealth) 금연 프로젝트 설문 중 흡연자 대상 문항 부분
smoker_dependent 흡연자 대상 흡연의향 종속변수
smoking_belief 흡연 및 금연에 대한 인식 공통문항
socioeconomic_survey 한국건강증진개발원 흡연 프로젝트 온라인 설문조사

Last updated

2020-06-17

extensionmaasetal

Description

Personal Website

GitHub Profile

Apps

biasjesse Jesse bias
bret Bomb Risk Elicitation Task (BRET) à la Crosetto/Filippin (2013), Journal of Risk and Uncertainty ...
epq Ex-post Questionnaire

Last updated

2020-06-11

experiment-t4

Apps

lottery
lottery_control
payment
payment_control
stage3
stage3_control
survey_control
T4
T4_control
welcome

Last updated

2020-06-24

ntuexp2019

Author

Wang Song

Apps

benchmark Benchmark Voucher: Cannot be passed to juniors (i.e., the simplest donor priority rule)
benchmark2 Benchmark Voucher as second stage, for change of rules
benchmark2b Benchmark Voucher as second stage, for no change of rule
benchmark_instructions Instruction for benchmark voucher, and quizzes. For first stage!
designated Designated Vouchers
designated2 Designated Vouchers as second stage
designated2b Designated Vouchers as second stage
designated_instructions Instruction for designated voucher, and quizzes. For first stage!
exp_instructions Instructions for the general rule regardless of the treatment
extended Extended vouchers
extended2 Extended vouchers as second stage
extended2b Extended vouchers as second stage
extended_instructions Instruction for extended voucher, and quizzes. For first stage!
general_info Starting Page
holtlaury Holt Laury Risk Elicitation
survey_emergent Survey and Payment Info

Last updated

2019-04-15

p190202

Apps

deer_hunting3 사슴사냥 3인용 연습
delegative_voting

Last updated

2019-03-01

evokhu

Author

Namun Cho

Apps

battleSex This is a 2-player 2-strategy coordination game. The name and story originated from <a href="h...
hd_1r Simple Chicken Game (HDG) (1 rounds)
oligopoly Oligopoly Game (Equivalent to PDG 1 round)
pd Continuous Prisoner's Dilemma (fixed partner, 10 rounds)
pd_1r Simple Prisoner's Dilemma (1 rounds)
pd_indirect Continuous Prisoner's Dilemma (random partner, 5 rounds)
ult 최후통첩게임
ult1 최후통첩게임
ult1_1r 최후통첩게임
ult2 최후통첩게임
ult2_1r 최후통첩게임
volunteer Volunteer Dilemma, 2018.9.28 작성

Last updated

2020-01-22

wc-rev2

Apps

auction Phase 1: Auction Phase: Set to 80 rounds, 10 for each lottery.
dice Phase 2: Dice Phase, for lack of a better description.
expected Expected Value
payoff Final Payment Phase
questionnaire Final Questionnaire

Last updated

2019-10-01

leasing-experiment

Apps

bargaining_experiment
closing
opening

Last updated

2019-01-29

econ-experiment

Apps

big5_questionnaire Questionnaire with emphasis on Big 5 personalities (OCEAN) and consideration of future consequenc...
bret Bomb Risk Elicitation Task (BRET) à la Crosetto/Filippin (2013), Journal of Risk and Uncertainty ...
coopetition1 Coopetition game: trade-off between value co-creation and value appropriation
coopetition_mturk Coopetition game: trade-off between value co-creation and value appropriation
coopetition_quiz Quiz questions that test the understanding of PD with private monitoring and communication
coordination Stag-hunt game to measure the tolerance of strategic uncertainty
guess_number a.k.a. Keynesian beauty contest. Players all guess a number; whoever guesses closest to p of the...
investment_task Investment task that measures risk preferences. Similar to Gneezy and Potter (1997) and Eckel and...
meeting_place Choosing meeting place and time. A coordination game that illustrates Schelling's focal point.
payment_info_asym_PD Payment information for the session
payment_online Payment information for the session
payment_simple Payment information for the session
pure_coordination Beauty contest as a coordination game: choose the most beautiful face.
questions Questions that can be measures by a likert scale (1-7).
ravens Raven's progressive matrices test measuring cognitive ability
repeated_game_PD Finitely repeated "Prisoner's Dilemma", 3 different treatments: random matching, fixed matching, ...
repeated_game_randpay A series of finitely repeated coordination games. One round in each game is randomly chosen for p...
risk_preferences Simply gamble choice for risk preference elicitation
simple_survey very short questionnaire
social_preference_elicitation Games used to estimate parameters of the Fehr-Schmidt model of inequality aversion
survey_likert Questions that can be measures by a likert scale (1-7).
survey_online Survey questions
wildcat

Last updated

2019-02-22

cmu-study

Apps

study Incentive Compatible Disclosure Study
test_game

Last updated

2020-04-02

game11-20

Apps

eleven_twenty In Cournot competition, firms simultaneously decide the units of products to manufacture. The uni...

Last updated

2020-03-13

ga202002

Apps

oTreemf
S1_DG1
S2_UG1
S3_DG2
S4_UG2in
S5_UG2out
SB1_pBCG
SB2_CT
SQ_belief
SQ_Question

Last updated

2020-02-12

excuse-driven

Apps

elicitation Ceci n'est pas une excuse - elicitation
tasks_today Ceci n'est pas une excuse - today's tasks
tasks_tomorrow Ceci n'est pas une excuse - tomorrow's tasks

Last updated

2019-04-12

gamblingbandit

Apps

gambling_bandit gambling app (one armed bandit)
gambling_bandit_MoreLuck gambling app (one armed bandit)
gambling_instructions gambling instructions
gambling_instructions_MoreLuck gambling instructions
game_instructions_t0 gambling instructions
game_instructions_t1 gambling instructions
game_instructions_t2 gambling instructions
game_instructions_t3
game_t0 gambling app (one armed bandit)
game_t1 gambling app (one armed bandit)
game_t2 gambling app (one armed bandit)
game_t3
game_trial_t0 gambling app (one armed bandit)
game_trial_t1 gambling app (one armed bandit)
game_trial_t2 gambling app (one armed bandit)
game_trial_t3
introduction
risk Lottery choice task as proposed by Eckel/Grossman (2002), Evolution and Human Behavior 23 (4), 28...
summary
summary_partial

Last updated

2020-09-08

eksperiment-uib

Apps

Job1
Job10
Job11
Job12
Job13
Job14
Job15
Job2
Job3
Job4
Job5
Job6
Job7
Job8
Job9
Survey
Survey2

Last updated

2020-08-01

morning-headland-21995

Apps

roboChoose This app is the investment decision with two assets.
threeAsset This app is the investment decision for three assets.
twoAsset This app is the investment decision with two assets.

Last updated

2020-09-04

aqueous-cliffs-60932

Apps

allport
bachallenge Challenges for prospective BA students
BDMauction
cognitivenoise App with decision task, to come after elicitation task
datingapp Challenges for prospective BA students: Dating App
digitalmarketing Challenges for prospective BA students: Digital Marketing
DOSPERT
dreber This is a repeated "Prisoner's Dilemma". Two players are asked separately whether they want to co...
dsraq Survey combining DSR (13+12 questions) and AQ (29 questions)
eoq Stock Control Game for 19BSB100 & 19BSB580 students to be used to teach EOQ model and ABC cla...
ERQ
foundationtask For 19BSC068
funnel Deming''s funnel expreriment for OM students
influencers Choosing social media influencers (Knapsack problem)
LAFsurvey Survey combining Allport and REI
linkstudy Link study
moonrover BA challenge: Moonrover
neuronewsvendor Newsvendor game with within-subject block treatments (attend, reappraise) Payoffs given in a payo...
neutralvendor Decision making between lotteries Parameters as in low margin Newsvendor This app is made from th...
newsvendor Newsvendor game Payoffs given in a payoff table High and low margin treatments
nvcomp NV competition with independent demands
nvcompnoniid NV competition with common industry demand split in half
nvcompnoniid2 Continuation for those players who have already played nvcompnoniid, no test questions
nvsingle NV monopoly
OMNV Newsvendor game for BSB100 and BSB580 Payoffs given in a payoff table High and low margin treatm...
slider Newsvendor with slider selection Profits as in Schweitzer and Cachon, q between 1 and 300
svo SVO: 6 dictator allocations, strategy method, each has 9 options
svofirst SVO: 6 dictator allocations, strategy method, each has 9 options
testform
twopartynewsvendor Two party newsvendor game where customer-side is represented by another passive player Payoffs gi...

Last updated

2020-06-25

nuexperiments

Apps

Game1 Test 2-by-2 inspector vs. firm game
Game2 Test 3-by-3 inspector vs. firm game
Game3 Test 2-by-2 inspector vs. firm game
Game4 Test 3-by-3 inspector vs. firm game
payment_info1 This application provides a webpage instructing participants how to get paid. Examples are given ...

Last updated

2020-08-20

cess-dnd

Apps

exp

Last updated

2019-05-08

austeja-experiments

Author

Austėja Kažemekaitytė

Apps

anagram_ctb_1 First part (anagram task) of anagram+ctb experiment
anagram_ctb_2 CTB for ctb_pilot_single task
consA
consB
consC
intertemporal 2019.11.20 Intertemporal pilot
intertemporal_2 2019.11.20 Intertemporal pilot
recall_ctb_1 2019.09.20 Recall task pilot + emotion questionnaire
recall_ctb_2 2019.09.20 CTB (money/effort)
recall_task 2019.09.20 Recall task pilot + emotion questionnaire
slider_task Slider task for real effort
slider_task_2 Slider task for real effort

Last updated

2020-02-20

normalformtest

Apps

lobby
pd
waiting

Last updated

2020-02-27

ch-samplingtest

Author

Christoph Huber

Apps

int
postexp Post-Experiment Tasks for 'Sampling'
sampling Sampling Returns and Price Developments - Volatility Shocks

Last updated

2019-12-02

labexperimentthesis

Author

Apps

Baseline1_InvGame 5-rounds baseline investment game
Baseline1_InvGameRESD1 7-rounds baseline investment game
Baseline2_InvGame 5-rounds baseline2 investment game
IntroSessionRESD1 ID from survey and explanation\n
Post_exp_survey post experiment survey
Post_exp_surveyRESD1 post experiment survey
Prova_base 7-rounds baseline investment game
Prova_treatment 7-rounds treatment investment game
SessionIntro ID from survey and explanation\n
Treatment_InvGame 5-rounds treatment investment game
Treatment_InvGameRESD1 7-rounds treatment investment game
Trial_InvGame Trial investment game
Trial_InvGameRESD1 Trial investment game

Last updated

2020-03-27

testingthepdp

Apps

Last updated

2020-04-26

whispering-retreat-95816

Apps

ignoring_advice
immoral_leadership
leadership
leadership_3
leadership_5
nego_chat_msg
nego_test
negotiation This player's decision
negotiation_chat
negotiation_chat_instructions
output
overconfidence
overconf_test
payoff
q_ams
QCM A quiz app that reads its questions from a spreadsheet (see quiz.csv in this directory). There is...
Raven_main
Raven_pretest
risk
social_pref
tax
tax_PSM
tax_PSM_FR
tax_test
tax_test_V2
timertest

Last updated

2020-05-28

experimentaleconomics

Apps

consent_page
minimum_effort_game
minimum_effort_game_surveys

Last updated

2020-03-26

patrick-heroku

Apps

spi_strategies Antecedents to CEOs' Strategic Political Stances

Last updated

2020-07-13

radiant-castle-15575

Apps

syllogismMturk syllogism task taken from Kokis et al. (2002)

Last updated

2019-09-11

pjulius

Apps

accom_dynam
accom_dynam_five
accom_dynam_four
accom_dynam_three
accom_dynam_two
BoSN This experiment implements a 4-player Battle of the Sexes game with 3 Nash equilibria. Red player...
bret Bomb Risk Elicitation Task (BRET) à la Crosetto/Filippin (2013), Journal of Risk and Uncertainty ...
chat
Cheap_Talk This app implements a dictator game with group identity. It assumes that players were already ass...
Dictator_Game This app implements a dictator game with group identity. It assumes that players were already ass...
double_auction Based on the double auction template created by Jan Dietrich, I created a two-dimensional version...
etfs ETF: Duffy, Rabanal, Rud by JP Rabanal
etfs2 ETF: Duffy, Rabanal, Rud by JP Rabanal
etfs_old ETF: Duffy, Rabanal, Rud by JP Rabanal
Final_Summary A final summary for the consumer choice experiment, dealing with all the possible cases.
General_Instructions This app is designed to show instructions and IRB information for general 'typical' economics lab...
HW2_Julius_StagHunt This app implements a Stag Hunt experiment with variable payoffs, with roles arranged randomly at...
Julius_Taxation Nonlinear Public Goods Game using Taxation This app implements a nonlinear public goods game wit...
Klee_Kandinsky This app implements the standard 'Klee-Kandinsky' group paradigm. Participants are shown a number...
Klee_Kandinsky_discussion This is a follow-up to the Klee-Kandinsky group paradigm, which primes group identity by allowing...
Public_Goods_Bargaining A game where two players bargain sequentially over 100 points split between their account, the ot...
quickstart This app rapidly generates randomized groups as if they had gone through a Klee-Kandinsky paradigm.
Reveal_Purchase A very simple app to fill a gap in our consumer choice experiment.
Rockets_Feathers An experiment using a monopolistic competition price-setting game to look for asymmetric price tr...
Savings This app implements a simple individual choice task, choosing how much to borrow or save in orde...
Trust_Game This app implements a trust game with groups that have been assigned by the Klee-Kandinsky paradigm.
WTP A simple willingness-to-pay task that can be used to measure the effect of group identification.
WTP2 A simple willingness-to-pay task that can be used to measure the effect of group identification.
WTP_Survey

Last updated

2020-09-15

slidertask

Apps

Last updated

2019-01-22

dome-unifi

Description

Qui si può provare l'esperimento o programmarne un pilota

Apps

bare_market A market game version with no charities
market 2 firms complete in a market by setting prices and quality for homogenous goods.
payment_recap This application provides a recap of all previous results You need to save the results you want t...
quest Total player payoff
risk Simple lottery to infer risk attitudes
role_uncertain_dictator Dictators with role uncertainty: each player is asked to play the dictator role. Subjects know th...
tsm Tentative Two-sides Market model
welcome_choice Introduces and welcomes, but first of all acquires code received by the experimenters
welcome_noCharity Introduces and welcomes, but first of all acquires code received by the experimenters

Last updated

2019-02-04

ra-jung

Apps

ball_catch Ball-Catching Task
decoding_ret Real Effort Task; decoding letters
minimum
payment_info_jung This application provides a webpage instructing participants how to get paid. Examples are given ...
realefforttask multi-round real effort task
ret_adding Real Effort Task. Add as many ints as possible.
ret_typing Real Effort Task. Type as many strings as possible.
slider
stroopapp
stroopapp2
survey_jung

Last updated

2019-03-16

ringvar

Apps

ringvar

Last updated

2019-10-23

mturk-experiment

Apps

bret Bomb Risk Elicitation Task (BRET) à la Crosetto/Filippin (2013), Journal of Risk and Uncertainty ...
coopetition_inclass Coopetition game: trade-off between value co-creation and value appropriation
coopetition_inclass_quiz Instructions on coopetition games, with quiz questions testing understanding.
coopetition_lab Coopetition game: trade-off between value co-creation and value appropriation
coopetition_lab_payment Payment information for the session
coopetition_lab_quiz Quiz questions that test the understanding of PD with private monitoring and communication
coopetition_lab_survey Survey questions
coopetition_mturk Coopetition game: trade-off between value co-creation and value appropriation
coopetition_oneshot Coopetition game: trade-off between value co-creation and value appropriation
coopetition_quiz Quiz questions that test the understanding of PD with private monitoring and communication
guess_number a.k.a. Keynesian beauty contest. Players all guess a number; whoever guesses closest to p of the...
meeting_place Choosing meeting place and time. A coordination game that illustrates Schelling's focal point.
multiarm_bandit Multiarm bandit problems for studying trade-offs between exploration and exploitation
otree_mturk_utils Custom Waiting Pages and Pages for mTurk
payment_inclass Payment information for the session
payment_online Payment information for the session
payment_simple Payment information for the session
payoff_matrix_quiz Instructions on how to read payoff matrices, with quiz questions testing understanding.
pure_coordination Beauty contest as a coordination game: choose the most beautiful face.
questions Questions that can be measures by a likert scale (1-7).
repeated_game_PD Finitely repeated "Prisoner's Dilemma".
repeated_game_randpay A series of finitely repeated coordination games. Computer randomly chooses several rounds in eac...
risk_preferences Simply gamble choice for risk preference elicitation
russian_roulette Simply gamble choice for risk preference elicitation
simple_survey very short questionnaire
survey_online Survey questions

Last updated

2019-12-21

Public Projects

otree-demo

Links

Author

Description

Apps

Last updated

unihd

Links

Apps

Last updated

cl-demo

Links

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Description

Apps

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bret-demo

Links

Author

Description

Apps

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demo-eet

Links

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Description

Apps

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reaction-demos

Links

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Description

Apps

Last updated

otree-snippets

Links

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Description

Apps

Last updated

ancient-woodland-48436

Links

Description

Apps

Last updated

marshall-fbe1

Links

Apps

Last updated

back-button

Links

Author

Description

Apps

Last updated

cess-maze-game

Links

Apps

Last updated

decision-volley

Links

Apps

Last updated

continuous-choice

Links

Apps

Last updated

experimentwageinequality

Links

Apps

Last updated

floating-harbor-77156

Links

Apps

Last updated

khealth-productivity

Links

Author

Apps