Skip to main content
. Author manuscript; available in PMC: 2023 Sep 1.
Published in final edited form as: Dev Sci. 2021 Dec 24;25(5):e13214. doi: 10.1111/desc.13214

Table 2.

Descriptive Statistics (N = 50)

M/ % SD Min. Max.
Participant characteristics
Female 46%
Age (years) 4.4 0.8 3.1 6
Race/ethnicity
  Non-Hispanic White 74%
  Hispanic White 14%
  Black, Asian, or Other race 12%
Household income > 1.5x for metro area 63%
Behavioral regulation measures
Teacher ratings
 Attentional control (CBQ) 3.61 1.01 1.2 5
 Inhibitory control (CBQ) 3.84 1.11 1 5
Observer Ratings
 Observed attention (RRSM) 3.36 0.66 1.5 4
 Observed inhibitory control (RRSM) 3.49 0.66 1.25 4
Accelerometer-based measures
 Number of times child initiated movement 25.9 14.6 1 59
 Mean length of sedentary periods (in seconds) 127 96 20 402
 Percentage of time in motion 21.1% 13.7% 4.7% 57.2%
Cognitive regulation measures
 Inhibitory control (HTKS) 26.85 23.16 0 60
 Attention shifting (DCCS) 74%

Note: CBQ = Children’s Behavior Questionnaire (Putnam & Rothbart, 2006); RRSM = Regulation-Related Skills Measure (McCoy et al., 2017); HTKS = Head-Toes-Knees-Shoulders (Ponitz et al., 2009); DCCS = Dimensional Change Card Sort (Zelazo, 2006).