Table 2 Summary of statistical analyses.

From: Ostracism, cortisol reactivity, and motivation for high-calorie food in children and adolescents with obesity

Outcome

Comparison/Effect

Test statistic (t, χ²)

p-value*

Manipulation check

 Rejection expectancy

Group difference

t39 = 1.702

0.097

 Estimated ball tosses

Group difference

t28.178 = 5.315

<0.001

Fundamental social needs

 Belonging

Group difference

t39 = 5.906

<0.001

 Self-esteem

Group difference

t39 = 4.488

<0.001

 Meaningful existence

Group difference

t39 = 7.974

<0.001

 Control

Group difference

t39 = 3.800

<0.001

Self-reported urge to eat

Time

χ²3 = 1.136

0.768

Group

χ²1 = 0.302

0.582

Time × Group

χ²3 = 2.097

0.553

Self-reported stress

Time

χ²3 = 0.796

0.850

Group

χ²1 = 1.947

0.163

Time × Group

χ²3 = 0.222

0.947

Salivary cortisol

Time

χ²1 = 19.010

<0.001

Group

χ²1 = 1.663

0.197

Time × Group

χ²1 = 4.143

0.042

Heart rate

Time

χ²2 = 7.268

0.026

Group

χ²1 = 0.148

0.701

Time × Group

χ²2 = 0.814

0.666

Heart rate variability (rMSSD)

Time

χ²2 = 41.849

<0.001

Group

χ²1 = 0.110

0.740

Time × Group

χ²2 = 3.666

0.160

Self-regulatory behavior

Group difference

t24.411 = 2.123

0.044

Helping behavior (dichotomous)

 

χ²1 = 3.881

0.054

Helping Behavior (time until help)

 

t31 = 0.518

0.608

  1. Comparison between inclusion group (n = 20) and exclusion group (n = 21); rejection expectancy measured with baseline CRSQ [35, 36], estimated ball tosses a single item asking participants to estimate the percentage of received in-game passes, fundamental social needs measured with FSNS [8, 34], self-reported urge to eat single VAS-item, self-reported stress single VAS-item, rMSSD root mean square of successive difference, Self-regulatory behavior weight of sweets picked post-VR-Cyberball, Helping behavior helping experimenter pick up pens: yes or no (dichotomous), and time until participants started to pick up pens (in seconds).
  2. *Significance at α = 0.05.
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