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Field
Experimental Design (Public)
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Before
The study follows a between-subject design with 4 conditions: Fix incentive(FIX), Motivational Message(POW), Lottery(LOT) and Control(CON).
The study will be longitudinal with a 6 months observation period.
Participants will be provided with a mobile application that will retrieve the steps information from their phone.
Hypotheses
H1. People with a high intrinsic motivation will make more steps than participants with low intrinsic motivation.
H2a. At the end of the experiment phase, the intrinsic motivation of the participants receiving a tangible incentive will be lower than the intrinsic motivation measured at the beginning of the experiment.
H2b. At the end of the experiment phase, the intrinsic motivation of the participants receiving motivational messages will be higher than the intrinsic motivation measured at the beginning of the experiment.
H3a. During the experimental and post experimental phases participants receiving a tangible incentive will be less physically active than participants in other conditions.
H3b. During the experimental and post experimental phases participants receiving motivational messages will be more physically active than participants in other conditions
Dependent Variable:
Number of steps/ Physical activity
Independent Variables:
Fix incentive Condition (FIX)
Motivational Message Condition (POW)
Lottery Condition (LOT)
Control Condition (CON)
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After
The study follows a between-subject design with 4 conditions: Fix incentive(FIX), Motivational Message(POW), Lottery(LOT) and Control(CON).
The study will be longitudinal with a 7 months observation period.
Participants will be provided with a mobile application that will retrieve the steps information from their phone.
Hypotheses
H1. People with a high intrinsic motivation will make more steps than participants with low intrinsic motivation.
H2a. At the end of the experiment phase, the intrinsic motivation of the participants receiving a tangible incentive will be lower than the intrinsic motivation measured at the beginning of the experiment.
H2b. At the end of the experiment phase, the intrinsic motivation of the participants receiving motivational messages will be higher than the intrinsic motivation measured at the beginning of the experiment.
H3a. During the experimental and post experimental phases participants receiving a tangible incentive will be less physically active than participants in other conditions.
H3b. During the experimental and post experimental phases participants receiving motivational messages will be more physically active than participants in other conditions
Dependent Variable:
Number of steps/ Physical activity
Independent Variables:
Fix incentive Condition (FIX)
Motivational Message Condition (POW)
Lottery Condition (LOT)
Control Condition (CON)
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