Examiner's Manual & Technical Report - Kaplanco.com

additional 409 children (19.5%; n=231 for the English sample and n=178 for the Spanishsample) were administered both the LAP-D and the WJ-R or Batería-R. These assessments wereadministered during the same testing session or in two sessions in close proximity.A second LAP-D was given to 465 typically developing children for the test-retest (n=318) orinterrater reliability (n=147) studies. The children participating in these two studies reflected asimilar distribution in geographic region, age, gender, race/ethnicity, and language to the overallsample. The test-retest sample included 163 English-speaking and 155 Spanish-speakingchildren. The interrater reliability sample included 58 English-speaking and 89 Spanish-speakingchildren.Because the LAP-D measures a continuum of developmental skills, the test-retest and interraterreliability were measured over a short period of time so that any differences betweenadministrations were more likely to reflect reliability rather than individual development. For thetest-retest reliability study, the same examiner administered the LAP-D on two separateoccasions, one to three weeks apart. For the interrater reliability study, two different examinersadministered the LAP-D on two separate occasions, one to three weeks apart.52