Study 1a: Means, Standard Deviations and Effect Sizes.
| Outcome . | Happy Condition . | Unhappy Condition . | draw (dadjusted) . | dz . | ||
|---|---|---|---|---|---|---|
. | ||||||
| Meansa . | SD . | Meansa . | SD . | |||
. | ||||||
| Money Spent | 4.48 | 1.84 | 3.81 | 1.96 | 0.35 | 0.30 |
| Positive Affect | 5.64 (5.62) | 1.25 | 1.70 (1.72) | 0.99 | 3.49 (3.46) | 2.35 |
| Negative Affect | 1.22 (1.20) | 0.58 | 3.80 (3.82) | 1.37 | 2.45 (2.49) | 1.74 |
| Perceived Choice | 6.98 (6.95) | 7.31 | –3.12 (–3.09) | 8.96 | 1.24 (1.23) | N/A |
| Impact | 5.32 (5.20) | 1.40 | 3.28 (3.40) | 1.66 | 1.33 (1.17) | 1.06 |
| Social Connection | 5.63 (5.60) | 1.16 | 3.60 (3.63) | 1.35 | 1.61 (1.57) | 1.26 |
| Closeness to Recipient | ||||||
| Dibble, Levine, & Park (2011) | 4.53 (4.40) | 1.83 | 2.68 (2.81) | 1.66 | 1.06 (0.91) | 0.93 |
| IOS | 4.45 (4.36) | 1.89 | 2.30 (2.38) | 1.69 | 1.20 (1.10) | 0.92 |
| Outcome . | Happy Condition . | Unhappy Condition . | draw (dadjusted) . | dz . | ||
|---|---|---|---|---|---|---|
. | ||||||
| Meansa . | SD . | Meansa . | SD . | |||
. | ||||||
| Money Spent | 4.48 | 1.84 | 3.81 | 1.96 | 0.35 | 0.30 |
| Positive Affect | 5.64 (5.62) | 1.25 | 1.70 (1.72) | 0.99 | 3.49 (3.46) | 2.35 |
| Negative Affect | 1.22 (1.20) | 0.58 | 3.80 (3.82) | 1.37 | 2.45 (2.49) | 1.74 |
| Perceived Choice | 6.98 (6.95) | 7.31 | –3.12 (–3.09) | 8.96 | 1.24 (1.23) | N/A |
| Impact | 5.32 (5.20) | 1.40 | 3.28 (3.40) | 1.66 | 1.33 (1.17) | 1.06 |
| Social Connection | 5.63 (5.60) | 1.16 | 3.60 (3.63) | 1.35 | 1.61 (1.57) | 1.26 |
| Closeness to Recipient | ||||||
| Dibble, Levine, & Park (2011) | 4.53 (4.40) | 1.83 | 2.68 (2.81) | 1.66 | 1.06 (0.91) | 0.93 |
| IOS | 4.45 (4.36) | 1.89 | 2.30 (2.38) | 1.69 | 1.20 (1.10) | 0.92 |
Note: Cohen’s d (raw) is calculated with the difference between raw means. Cohen’sd (adjusted) is calculated with the difference between means that adjust for amount of money spent as a covariate. Cohen’s dz is calculated by dividing the mean difference score by its standard deviation; a difference score was calculated for each participant by subtracting their score in the unhappy condition from their score in the happy condition; the difference does not adjust for amount of money spent as a covariate.
a Adjusted means reported in parentheses.