Real effort task

.pre-commit-config.yaml

@@ -4,7 +4,7 @@ repos:
     rev: v0.2.1
     hooks:
       - id: ruff
-        args: [ --fix ]
+        args: [ --fix, --select, I ]
       - id: ruff-format
 
   - repo: https://github.com/codespell-project/codespell

introduction/Payment.html

@@ -13,7 +13,7 @@ <h4> Payment at the end of the experiment </h4>
 <hr>
 
 <p> If you have any questions, please raise your hand now and an experimenter will come to you. </p>
-<p> Otherwise, please proceed to the <b> trial round</b>. </p>
+<p> Otherwise, please proceed to the <b> task </b>. </p>
 
 {{ next_button }}
 

introduction/Proposal.html

@@ -14,8 +14,16 @@
 <h4> Group budgets </h4>
 
 <p> 
-    You and the two other players will each be randomly assigned a player role ({{P1}}, {{P2}}, {{P3}}). 
-    <b> The player roles will be reassigned each round. </b>
+    The assignment of player roles works as follows: After these instructions, you will work on a task (moving sliders). 
+    In each round, you and the respective two other players will each be randomly assigned a player role ({{P1}}, {{P2}}, {{P3}}). 
+
+    {{ if not last_player_is_dummy }}    
+        <b> The better you performed on the task, the higher the probability that you will be assigned player role {{P1}}.</b>
+    {{ else }}
+        <b> The better you performed on the task, the higher the probability that you will be assigned player role {{P1}} or {{P2}}. </b>
+    {{ endif}}
+
+    <b> The player roles will be reassigned each round. </b> 
 </p>
 {{ if not last_player_is_dummy }}
 <p>

introduction/tests.py

@@ -1,4 +1,5 @@
 from otree.api import Bot, Submission
+
 from . import Coalitions, Instructions, Payment, Proposal, Welcome
 
 

live_bargaining/__init__.py

@@ -1,6 +1,7 @@
 import pickle
 import time
 from datetime import datetime
+from random import choices
 
 from otree.api import (
     BaseConstants,
@@ -272,12 +273,38 @@ def create_acceptance_data(group: Group):
             }
 
 
+class WaitForRoles(WaitPage):
+    @staticmethod
+    def after_all_players_arrive(group: Group):
+        last_player_is_dummy = (
+            len(group.session.config["prod_fct"]) == C.PLAYERS_PER_GROUP - 1
+        )
+        scores = {
+            player.id_in_group: player.participant.task_score
+            for player in group.get_players()
+        }
+        sorted_ids = [id for id, _ in sorted(scores.items(), key=lambda x: x[1])]
+
+        # assign player roles
+        if (
+            last_player_is_dummy
+        ):  # the lower the score, the higher the probability of being the dummy player
+            dummy_id = choices(sorted_ids, weights=[5, 3, 2])
+            new_group_ids = [id for id in scores.keys() if id != dummy_id[0]] + dummy_id
+        else:  # the higher the score, the higher the probability of being the big player
+            p1_id = choices(sorted_ids, weights=[2, 3, 5])
+            new_group_ids = p1_id + [id for id in scores.keys() if id != p1_id[0]]
+        new_group = [group.get_player_by_id(id) for id in new_group_ids]
+        group.set_players(new_group)  # type: ignore
+
+
 class Info(Page):
     @staticmethod
     def vars_for_template(player: Player):
         return dict(
             actual_round_number=player.subsession.round_number - 1,
             player_name=player.session.config["player_names"][f"P{player.id_in_group}"],
+            player_score=player.participant.task_score,
         )
 
 
@@ -514,6 +541,7 @@ def custom_export(players):
 
 
 page_sequence = [
+    WaitForRoles,
     Info,
     WaitForBargaining,
     Bargain,

live_bargaining/tests.py

@@ -1,5 +1,7 @@
-from otree.api import Currency as c, expect, Bot, Submission
-from . import Info, Bargain, BargainingResults
+from otree.api import Bot, Submission, expect
+from otree.api import Currency as c
+
+from . import Bargain, BargainingResults, Info
 
 
 def create_offers(method, Y):

requirements.txt

@@ -2,3 +2,4 @@ otree~=5.10.3
 psycopg2~=2.9.9
 requests~=2.31.0
 country_list~=1.1.0
+Pillow~=8.0

settings.py

@@ -15,7 +15,7 @@
     dict(
         name="treatment_y_10",
         display_name="Treatment: Y=10",
-        app_sequence=["introduction", "live_bargaining", "survey"],
+        app_sequence=["introduction", "sliders", "live_bargaining", "survey"],
         num_demo_participants=3,
         seconds_per_round=5 * 60,
         prod_fct={
@@ -33,7 +33,7 @@
     dict(
         name="treatment_y_30",
         display_name="Treatment: Y=30",
-        app_sequence=["introduction", "live_bargaining", "survey"],
+        app_sequence=["introduction", "sliders", "live_bargaining", "survey"],
         num_demo_participants=3,
         seconds_per_round=5 * 60,
         prod_fct={
@@ -51,7 +51,7 @@
     dict(
         name="treatment_y_90",
         display_name="Treatment: Y=90",
-        app_sequence=["introduction", "live_bargaining", "survey"],
+        app_sequence=["introduction", "sliders", "live_bargaining", "survey"],
         num_demo_participants=3,
         seconds_per_round=5 * 60,
         prod_fct={
@@ -69,7 +69,7 @@
     dict(
         name="treatment_dummy_player",
         display_name="Treatment: Dummy Player",
-        app_sequence=["introduction", "live_bargaining", "survey"],
+        app_sequence=["introduction", "sliders", "live_bargaining", "survey"],
         num_demo_participants=3,
         seconds_per_round=5 * 60,
         prod_fct={
@@ -95,11 +95,9 @@
     real_world_currency_per_point=1.00, participation_fee=10.00, doc=""
 )
 
-PARTICIPANT_FIELDS = [
-    "final_payoff",
-    "payoff_list",
-]
-SESSION_FIELDS = []
+PARTICIPANT_FIELDS = ["final_payoff", "payoff_list", "task_score"]
+
+SESSION_FIELDS = ["params"]
 
 # ISO-639 code
 # for example: de, fr, ja, ko, zh-hans

sliders/Game.html

@@ -0,0 +1,33 @@
+{% block styles  %}
+    <link href="{% static 'sliders.css' %}" rel="stylesheet"/>
+{% endblock %}
+
+{{ block title }}
+Task
+{{ endblock }}
+
+{{ block content }}
+
+<p> Move the slider into the position indicated by the red dot. 
+    Once the slider is in the correct position, it will turn green. 
+    {{ if not last_player_is_dummy }}
+        Recall: The more sliders you put in the correct position, the higher the probability that you will be assigned player role {{P1}}. 
+    {{ else }}
+        Recall: The more sliders you put in the correct position, the higher the probability that you will be assigned player role {{P1}} or {{P2}}. 
+    {{ endif }}
+    You have 4 minutes in total.
+ </p>
+
+
+<div class="d-flex flex-column align-items-center">
+
+    <canvas id="canvas" class="m-2"></canvas>
+
+</div>
+
+{{ endblock }}
+
+{{ block scripts }}
+<script src="{{ static 'sliders.js' }}"></script>
+
+{{ endblock }}

sliders/Results.html

@@ -0,0 +1,11 @@
+{{ block title }}
+Results
+{{ endblock }}
+
+{{ block content }}
+
+<p> Thank you for working on the task. Please now proceed to the <b> trial round</b>. </p>
+
+{{ next_button }}
+
+{{ endblock }}