Introduction
Assessments
Introduction
Repeat Assessments
The availability of comprehensive child data over time, coupled with longitudinal information on the family background, education, employment histories, and well-being of the NLSY79 mothers, provide researchers with a unique opportunity to examine the linkages between maternal- family behaviors and attitudes and subsequent child development. Certain measures in the NLSY79 Child surveys, such as the HOME, are taken at each survey point. Some assessments, such as the PIAT achievement battery, are administered to a wide range of age-eligible children over a period of time. Still others, such as the PPVT, are administered at the first eligible age, and then usually at the index age of 10 or 11.
Overall patterns of repeat interviews can be seen in the Retention section, in Table 1 for children and in Table 2 for young adults.
In Table 7 we present data showing the extent to which children have been repeatedly assessed on the PIAT and PPVT. Children are included in Table 7 if they had any valid PIAT math or reading score in any of the assessment years from 1986 to the current survey round or any valid PPVT score. These counts of repeat assessment scores offer a preliminary idea of the number of data points for each of these measures over time. More than two thirds of NLSY79 children have three or more PIAT achievement measures, and more than 7,200 children have more than one PPVT score.
Table 7. Repeat PIAT and PPVT Scores: Children Assessed in Any Year 1986-2014
Number of Valid Scores^{1} | PIAT Math Score | PIAT Reading Score | PPVT Score |
One valid score | 825 | 823 | 2223 |
Two valid scores | 1028 | 1033 | 3882 |
Three valid scores | 1207 | 1179 | 3229 |
More than three valid scores | 6173 | 6186 | 145 |
Total | 9233 | 9221 | 9479 |
^{1} The number of PIAT Math scores is based on a count of the survey years in which the child received a valid Math score. The number of PIAT Reading scores is based on a count of either valid Reading Recognition and/or Reading Comprehension scores in any survey year. The number of PPVT scores is based on a count of valid PPVT scores available in any survey year. Counts are based on the number of valid raw scores. |
The pattern of repeat PIAT scores by age at the most recent assessment point is displayed in Table 8. This table shows the number of children with multiple PIAT scores, based on a count of any valid math or reading score between the initial and most recent assessment date. Children with only one valid PIAT score comprise the smallest subgroup in this table. As one would expect, the majority of 5- and 6-year-olds at the last interview date have only been tested once. Children in the middle age group and those in early adolescence have valid scores from multiple survey points enabling various measures of change to be calculated. Clearly the number of children for whom repeat achievement scores are available is large, particularly when viewing the distribution for children ages 10-14.
Table 8. Number of PIAT Scores by Age of Child at Date of Last Valid Score: Children Assessed in Any Year 1986-2014
Valid PIAT Scores^{1} | Age of Child (Years) | |||||||||||
5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 + | Total | |
One score | 230 | 207 | 108 | 48 | 35 | 38 | 27 | 37 | 38 | 23 | 4 | 795 |
Two scores | 0 | 2 | 132 | 201 | 120 | 137 | 110 | 115 | 117 | 62 | 36 | 1032 |
Three scores | 0 | 0 | 0 | 8 | 109 | 222 | 141 | 259 | 220 | 115 | 87 | 1161 |
More than three scores | 0 | 0 | 0 | 0 | 0 | 36 | 235 | 1232 | 2768 | 1677 | 300 | 6248 |
Total | 230 | 209 | 240 | 257 | 264 | 433 | 513 | 1643 | 3143 | 1877 | 427 | 9236 |
^{1} The number of PIAT scores is based on a count of the number of survey rounds in which a child received a valid PIAT Math and/or Reading Recognition and/or Reading Comprehension score. Counts are based on the number of valid raw scores. |
The number of repeat PPVT scores by child age at the date of the last valid score is profiled in Table 9. Users interested in multiple PPVT scores are directed to the index group of children who were assessed at preschool or early school levels and then again at the age of 10 or 11. Table 9 highlights the power of pooling the sample. This table shows larger numbers of children with multiple scores for assessments that were administered to them when they were age 10 or 11 years old. These children may now be of differing ages since the table displays counts at the last time a child was administered the PPVT.
Table 9. Number of PPVT Scores by Age of Child at Date of Last Valid Score: Children Assessed in Any Year 1986-2014
Valid PPVT Scores^{1} | Age of Child (Years) | |||||||||||||
< 4 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 + | Total | |
One score | 349 | 598 | 419 | 182 | 100 | 54 | 68 | 185 | 137 | 49 | 46 | 24 | 12 | 2223 |
Two scores | 0 | 1 | 29 | 63 | 139 | 64 | 49 | 1499 | 1611 | 64 | 70 | 61 | 232 | 3882 |
Three scores | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 960 | 1286 | 338 | 250 | 298 | 88 | 3229 |
More than three scores | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 116 | 26 | 3 | 0 | 0 | 145 |
Total | 349 | 599 | 448 | 245 | 239 | 118 | 126 | 2644 | 3150 | 477 | 369 | 383 | 332 | 9479 |
^{1 }The number of PPVT scores is based on a count of the number of years in which a child received a valid PPVT score. Counts are based on the number of valid raw scores. |
These examples illustrate how NLSY79 children experience varying degrees of repeat administration of various assessments. An overall picture of the assessment history of NLSY79 children who have become young adults is available in Table 2 in the Retention section.