Public Projects
If you think your app could be useful for others, please email chris@otree.org and I can feature it here.
otree-snippets
Links
Author
Chris @ oTree
Description
Recipes for common tasks in oTree
Apps
- appcopy1
- appcopy2
- are_you_sure 'Are you sure?' popup based on the user's input
- back_button Back button for multiple instructions pages
- balance_treatments_for_dropouts
- bmi_calculator Basic single-player game (BMI calculator)
- chat_from_scratch Of course oTree has a readymade chat widget described here: https://otree.readthedocs.io/en/late...
- chat_with_experimenter Chat with experimenter, using Papercups
- complex_form_layout
- comprehension_test Comprehension test. If the user fails too many times, they exit.
- comprehension_test_simple Simple version of comprehension test
- configurable_players_per_group Configurable players per group. See here: https://otree.readthedocs.io/en/latest/treatments.html#...
- constant_sum
- count_button_clicks Count button clicks (hidden input)
- css Using CSS to style timer and chat box.
- detect_mobile Detect and block mobile browsers
- dropout_detection Dropout detection (if user does not submit page in time)
- dropout_end_game Dropout detection for multiplayer game (end the game)
- experimenter_input Experimenter input during the experiment, e.g. entering the result of a random draw. If you want...
- factorial_treatments Randomize multiple factors in a balanced way
- gbat_keep_same_groups_part0
- gbat_keep_same_groups_part1
- gbat_keep_same_groups_part2 Preserve same groups as a previous app that used group_by_arrival time.
- gbat_new_partners group by arrival time, but in each round assign to a new partner.
- gbat_treatments Conventionally, group-level treatments are assigned in creating_session: for g in subsession.get...
- gbat_treatments_complex Similar to the basic gbat_treatments app, except: - Treatments are balanced rather than indepen...
- getattr_setattr Using getattr() and setattr() to access numbered fields, e.g. player.num1, player.num2, ..., pla...
- groups_csv Reads groups from a CSV file. Inside this app, you will find a groups6.csv, which defines the gro...
- history_table History table
- image_choices Images in radio button choices
- input_calculation
- live_volunteer Live volunteer's dilemma (first player to click moves everyone forward).
- longitudinal Longitudinal study (2-part study taking place across days/weeks) Another way to do longitudinal ...
- min_time_on_page Minimum time on a page
- multi_language How to translate an app to multiple languages (e.g. English and German). There are 2 ways to def...
- multi_page_timeout Timeout spanning multiple pages
- multi_select Question that lets you select multiple options (multi-select, multiple choice / multiple answer)
- multi_select_complex Question that lets you select multiple options (multi-select, multiple choice / multiple answer)
- other_player_previous_rounds
- pass_data_between_apps_part1
- pass_data_between_apps_part2
- pay_random_app1
- pay_random_app2 """ class Constants(BaseConstants): name_in_url = 'pay_random_app2' players_per_group =...
- pay_random_app3 App where we choose the app to be paid
- pay_random_round Select a random round for payment
- persist_raw Sliders and checkboxes that don't get wiped out on form reload. Also works for text/number inputs...
- placeholder
- practice_rounds Practice rounds
- progress_bar All you need is a participant field called 'progress' then keep adding 1 to it.
- questions_from_csv Read quiz questions from a CSV. (Also randomizes order) It would be much simpler to implement thi...
- question_with_other_option Menu with an 'other' option that lets you type in a valueInput manually
- quiz_with_explanation Quiz with explanation. Re-display the previous page's form as read-only, with answers/explanation.
- radio Radio buttons in various layouts, looping over radio choices
- radio_switching_point Table where each row has a left/right choice, like the strategy method. This app enforces a singl...
- random_num_rounds
- random_num_rounds_multiplayer Random number of rounds for multiplayer (random stopping rule)
- random_num_rounds_multiplayer_end
- random_question_order
- random_task_order For each participant, randomize the order of tasks A, B, and C. Task B has 2 pages, which are alw...
- rank_players Rank players
- rank_topN Ranking your top N choices from a list of options.
- rank_widget "Widget to rank/reorder items". See http://sortablejs.github.io/Sortable/ for more examples.
- redirect_to_other_website
- sequential Sequential game (asymmetric)
- sequential_symmetric Sequential / cascade game (symmetric)
- show_other_players_payoffs
- slider_graphic An image that changes when you move a slider. If your image is a some kind of chart, it's better ...
- slider_live_label Slider with live updating label
- supergames Supergames consisting of multiple rounds each
- timer_custom Timer: replacing the default timer with your own
- treatments_from_spreadsheet Reading treatment parameters from a CSV spreadsheet
- wait_for_specific_people Wait only for specific people
- waiting_too_long_part0
- waiting_too_long_part1 group_by_arrival_time timeout (continue with solo task)
- waiting_too_long_part2
- wait_page_timeout Timeout on a WaitPage (exit the experiment)
Last updated
2021-09-28
otree-more-demos
Links
Author
Chris @ oTree
Apps
- asynchronous Asynchronous 2-player sequential game (players can play at different times), where we guarantee p...
- bigfive Big 5 personality test
- bots_vs_humans Humans vs. bots. This is a public goods game where you play against 2 bots. The bots use a tit-f...
- choice_list Choice list (Holt/Laury, risk preferences, price list, equivalence test, etc)
- continuous_time_slider Continuous-time public goods game with slider
- crazy_eights Card game (crazy eights)
- dollar_auction Dollar auction
- double_auction Double auction market
- ebay eBay style auction
- fast_consensus Reach a consensus with your group before your payoffs shrink to 0. Similar to the "Endgame" segme...
- go_no_go Go/No-go
- image_annotation
- image_rating Rating images (WTP/willingness to pay)
- intergenerational Intergenerational/evolutionary game. Each player receives the result from the previous player. Ca...
- iowa_gambling Iowa Gambling Task. See: "Insensitivity to future consequences following damage to human prefront...
- live_bargaining For oTree beginners, it would be simpler to implement this as a discrete-time game by using mult...
- live_coordination Live coordination (voting with chat/negotiation)
- nim Game of Nim. Players take turns adding a number. First to 15 wins.
- panas PANAS (positive and negative affect schedule)
- punishment Public goods with punishment, roughly based on Fehr & Gaechter 2000.
- randomize_stimuli This app is a demonstration of different ordering of stimuli, such as multiple blocks, randomiza...
- read_mind_in_eyes Reading the Mind in the Eyes Test (Baron-Cohen et al. 2001). See here: http://socialintelligence....
- rockpaperscissors
- shop Shopping app (online grocery store)
- strategy_method Strategy method for ultimatum game.
- stroop Stroop test.
- supergames_indefinite Supergames of an indefinitely repeated prisoner's dilemma
- svo Social Value Orientation (Murphy et al)
- tictactoe Tic-tac-toe
- twitter Mini-Twitter
- wait_page_from_scratch Wait page implemented from scratch, using live pages.
- wisconsin Wisconsin card sorting test: https://doi.org/10.1093/cercor/1.1.62
- word_search Multiplayer word search game
Last updated
2021-10-05
otree-demo
Links
Author
Chris @ oTree
Apps
- bigfive Big 5 personality test
- dollar_auction
- double_auction Timestamp (seconds since beginneng of trading)
- go_no_go """ class Constants(BaseConstants): name_in_url = 'go_no_go' players_per_group = None ...
- monty_hall Monty Hall problem
- nim Game of Nim. Players take turns adding a number. First to 15 wins.
- stroop Stroop test.
Last updated
2021-06-06
otree-bomb-risk
Links
Author
Chris @ oTree
Description
If you use this app, you must cite Holzmeister & Pfurtscheller,
https://doi.org/10.1016/j.jbef.2016.03.004
Apps
- bret Bomb Risk Elicitation Task (BRET) à la Crosetto/Filippin (2013), Journal of Risk and Uncertainty ...
Last updated
2021-06-19
otree-realeffort
Links
Author
Chris @ oTree
Description
Real-effort tasks (transcription, decoding, matrix, sliders, etc)
Apps
- real_effort Real-effort tasks. The different tasks are available in task_matrix.py, task_transcription.py, et...
- sliders """ class Constants(BaseConstants): name_in_url = "sliders" players_per_group = None ...
Last updated
2021-09-23