Dataset for
Xue, L., Sitzia, S., and Turocy, T.L. (2017) 
Mathematics self-confidence and the "prepayment effect" in riskless choices. 
Journal of Economic Behavior & Organization 135: 239-250.

Each row corresponds to the responses of one participant.  No participant
participated more than one time.

The data are stored in CSV, with the following fields/columns

treatment: name of treatment (Post, Pre, Pre+Amount, Pre+Amount+Instr)
participant: unique identifier for participant
session: unique identifier for session (each session was for one treatment)
earnings: total earnings for participant (in pounds and pence)
lo_spade_max: maximisation rate on low-spades trials
max{1..7}: whether the participant chose an earnings-maximising card in set {1..7}
choice{1..7}: the card the participant chose in set {1..7}
experience: number of previous experiments participated in
exp_group: classification of previous experience (none, some, much) based on
           number of previous experiments
gender: Male/Female/Decline
school: school/unit of study at UEA
is_econ: 1 if is student in School of Economics, 0 otherwise
native: Native or NonNative speaker of English
nationality: stated nationality (using 3-letter ISO country codes)
age: stated age, in years


Codes for school/unit of study:
AMA:  Art, Media, and American Studies
ART:  Art History and World Studies
BIO:  Biology
CHE:  Chemistry
CMP:  Computing Science
DEV:  International Development
ECO:  Economics
EDU:  Education and Lifelong Learning
ENV:  Environmental Sciences
HIS:  History
HSC:  Health Sciences
LAW:  Law
LCS:  Language and Communication Studies
LDC:  Literature, Drama, and Creative Writing
MED:  Medicine
MTH:  Mathematics
NBS:  Business
PHA:  Pharmacy
PPL:  Politics, Philosophy, Language and Communication Studies
PSY:  Psychology
SCI:  Science