Table B1

Missing data (share of total cases)

Outcome variables  Predictors
Variable Share Variable Share
Reading 13.8% Girl 0.4%
Math 14.2 Black 0.5
Cognitive flexibility 14.1 Hispanic 0.5
Working memory 20.5 Hispanic ELL 11.8
Self-control (teachers) 25.4 Hispanic English 11.8
Approaches to learning (teachers) 18.7 Asian 0.5
Internalizing problems 21.7 Other 0.5
Externalizing problems 20.8 Age 13.2
Self-control (parents) 27.3 Has a disability 28.3
Approaches to learning (parents) 27.3 Family type: not living with two parents 26.3
Social interactions (parents) 27.2 Number of siblings 26.3
Interpersonal relationships 24.6 Language at home is not English (ELL) 11.7
Closeness to teacher 12.2 Language at home is English 11.7
Eagerness to learn 18.4 Native 25.1
Attention 18.4 Immigrant 25.1
Persistence in completing tasks  (teachers) 18.6 SES (quintile 1 to 5) 11.9
Persistence in completing tasks (parents) 27.2 Center-based  pre-K 17.4
Eagerness to learn new things 27.3 Enrichment activities with parents 26.4
Creativity in work or play 27.3

Note: The number of observations is rounded to the nearest multiple of 10. ELL stands for English-language learner. SES stands for socioeconomic status.

Source: EPI analysis of ECLS-K, Kindergarten Class of 2010–2011 (National Center for Education Statistics)

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