The only datafile of this dataset is labelled: "Data_plus_codes.xlsx"
There are a few additional files available which contain metadata and procedural details about the research project. 

Each file is briefly described below.


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*** data file:  Data_plus_codes.xlsx					***
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This Microsoft Excel 2013 file contains two sheets.
The first sheet "Codes" contains all variable names and provides a description of the type of the variable as well as a detailed explanation what the variables measure. The second sheet "Data" contains the actual data, i.e. 233 observations, one per subject.
The same information that is provided in the sheet "Codes" is provided below in this text file.

VARIABLE NAME				TYPE		NUMERIC RANGE		DESCRIPTION
ID					Integer 	[1, 233]		Subject ID
weekly					Dummy 		{0,1}			1 in treatments with weekly reminders, 0 otherwise
monthly					Dummy 		{0,1}			1 in treatments with mothly reminders, 0 otherwise
reminder_interval			Integer 	{0,1,2}			0 in treatments with no reminders, 1 in treatments with monthly reminders, 2 in treatments with weekly reminders (redundant information also captured by the two dummies 'monthly' and 'weekly'; created for easier data analysis)
standing_order				Dummy 		{0,1}			1 in treatments where standing orders were used to make donations, 0 in treatments where one-off donations were used to make donations
amount_donated				Float 		[0, 15]			Total amount a subject donated to the charity over the full duration of the experiment
any_donation_made			Dummy 		{0,1}			1 if a subject made at least one donation including donations amounting to zero pounds, 0 otherwise
any_donation_greater_zero_made		Dummy 		{0,1}			1 if a subject made at least one donation including donations amounting to at least 0.01 pounds, 0 otherwise
number_of_donations_made		Integer 	[0, …]			Number of donations made: in the one-off donatio treatments, this number resembles exactly the number of donations that were made; in the standing order treatments this variable measures the number of times new standing orders were set up or existing standing orders were amended
task_score				Integer 	[0, …]			Number of correctly counted matrices in the real effort task
age					Integer 	[0, …]			Age in years
gender_male				Dummy 		{0,1}			1 if subject is male, 0 if subject is female
economics				Dummy 		{0,1}			1 if subject's main field of study is economics, 0 otherwise
nationality_british			Dummy 		{0,1}			1 if subject's nationality is British, 0 otherwise
nationality_chinese			Dummy 		{0,1}			1 if subject's nationality is Chinese, 0 otherwise
SDS					Integer 	[0, 16]			Social Desirability Scale; 
PROC					Integer 	[0, 11]			Procrastination inventory; Steel (2010)
organized_person			Integer 	[0, 6]			Subjects response to "Please indicate how well the two following statements describe you: 'I consider myself to be a very organized person?'" (0 not at all, 6 perfectly accurate)
busy_person				Dummy 		{0,1}			Subjects response to "Please indicate how well the two following statements describe you: 'I consider myself to be a very busy person?'" (0: not at all, 6: perfectly accurate)
mails_per_day				Integer 	[0, …]			Subject's response to the question: "How many emails do you receive on average per day?"
mails_worth_reading_per_day		Integer 	[0, …]			Subject's response to the question: "How many of those would you consider worth reading?"
payment_not_collected			Dummy 		{0,1}			1 if subject did not collect its payment at the end of the experiment, 0 otherwise
forgot_1				Dummy 		{0,1}			1 if subject stated having forgotten about making a donation as reason for not donating, 0 otherwise
selfish_2				Dummy 		{0,1}			1 if subject stated needing their money for themselves as reason for not donating, 0 otherwise
already_donating_3			Dummy 		{0,1}			1 if subject stated already donating to another charity as reason for not donating, 0 otherwise
not_money_oxfam_4			Dummy 		{0,1}			1 if subject stated not wanting to donate to Oxfam as reason for not donating, 0 otherwise
final_payment				Float 		[0, 15]			Sum paid to subjects at the end of the experiment in GBP


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*** Supplementary information:  Consent_form.docx			***
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This file contains the consent form particpants filled and signed before they participated in the experiment.


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*** Supplementary information:  Check_for_understanding.docx		***
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The sole purpose of this check for understanding was to check whether participants understood the experimental set up. Participants could only continue once they answered all questions correctly.
The check for understanding was performed electronically (on the computer screen).


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*** Supplementary information:  Task_instructions.docx			***
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This file contains the instructions used to describe the real effort task participants were asked to perform while in the laboratory.


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*** Accompanying research article					***
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A research article based on this dataset is currently work in progress. Once it has been accepted for publication, it will be made available on www.axelsonntag.com