|
Field
Planned Number of Observations
|
Before
To the best of our knowledge there is no evidence on the effect of task autonomy on cortisol responses. Based on evidence from related studies on incentive schemes and cortisol responses (Dohmen et al. 2017), we expect that a minimum of 35 participants per treatment arm is needed. We will determine the sample size after one session per treatment arm based on (then possible) power calculations
|
After
We ran power calculations (power 0.8, alpha 0.05) based on the results of the first sessions (71 subjects over 4 treatment arms) and aim at ca. 70 subjects per treatment arm, i.e., 280 subjects in total
|