Assessments

Introduction

 

Assessment Completion Rates

Table 6 provides estimates of the number of children who were administered each assessment in the current survey round and the completion rate for each assessment. (Similar completion rate tables showing the distribution of NLSY79 children with valid assessment scores in earlier survey rounds can be found here.) The number of children who complete each assessment continues to be substantial, so that reasonably high numbers of black, white, and Hispanic children are available for separate analyses by race/ethnicity. Sufficient sample sizes are particularly important for those assessments where there are major differences in outcome by race/ethnicity, or more importantly, where the linkages between critical explanatory inputs and assessment outcomes vary by race/ethnicity.

Table 6 shows that the percent of children receiving valid scores is quite high. Since the mother-reported assessments (Behavior Problems Index (BPI), Motor and Social Development scale (MSD) and the Temperament Scale) were integrated into the mother's main interview starting in 2006, mothers completed these assessments for nearly all age-eligible children. However, because no imputation of scores is performed either for the MSD or Temperament scores, any "Don't Know" or "Refused" responses for individual items will result in a missing value for the corresponding overall scale score.

Table 6. NLSY79 children with valid assessment scores: Children interviewed in 2014

Assessment Child age All children Race/ethnicity
Hispanic Black Non-Black/ Non-Hispanic
   # % # % # % # %
Child home environment
  The HOME Inventory         All ages (birth to 14) 241 87.3 57 81.4 63 86.3 121 91.0
Under 3 years -- -- -- -- -- -- -- --
3 to 5 years 5 100.0 0 0 2 100.0 3 100.0
6 to 9 years 24 82.8 4 80.0 7 100.0 13 76.5
10 to 14 years 212 87.6 53 81.5 54 84.4 105 92.9
Child social and emotional development
  Temperament Scale* 2 to 6 years 7 100.0 0 0 2 100.0 5 100.0
  Motor and Social Development Scale Under 4 years 2 100.0 0 0 2 100.0 0 0
  Behavior Problems Index 4 to 14 years 250 91.2 62 88.6 65 91.6 123 92.5
  Self-Perception Global 12 to 14 years 158 77.8 33 64.7 46 83.6 79 81.4
  Self-Perception Scholastic 12 to 14 years 158 77.8 33 64.7 46 83.6 79 81.4
Child cognitive development
  WISC-R Digit Span Subscale 7 to 11 years 53 79.1 15 79.0 14 87.5 24 75.0
  PIAT Math PPVT ages 5 to 14 212 77.9 48 68.6 60 84.5 104 79.4
  PIAT Reading Recognition PPVT ages 5 to 14 212 77.9 48 68.6 60 84.5 104 79.4
  PIAT Reading Comprehension PPVT ages 5 to 14 211 77.6 48 68.6 60 84.5 103 78.6
  PPVT-R   All ages 39 83.0 11 73.3 11 91.7 17 85.0
4 to 5 years 3 100.0 0 0 0 0 3 100.0
10 to 11 years 33 80.5 11 73.3 9 90.0 13 81.3
6-9, 12-14 years** 3 -- 0 -- 2 -- 1 --
 

*The Temperament Scale score reported is "Compliance," administered for children ages 2-6.

**The PPVT was administered to a small number of children outside of the age range for PPVT assessment because they did not have a prior valid PPVT score. Completion rates were not computed for these children.

NOTE: Of the 7,626 children born to mothers interviewed in 2014, 276 were age-eligible and interviewed or assessed in 2014. The "%" valid column indicates children with a valid score of those age-eligible for a particular assessment. Children who reached age 15 by the end of 2014 were not eligible for assessment; however, a number of children who turned 15 in the following calendar year (2015) were assessed as part of the child sample.