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. 2021 Feb 16;86(1):7–119. doi: 10.1111/mono.12425

Table 3.

Standard Score Means (M), Standard Deviations (SD), and Sample Sizes (N) for Academic Outcomes by Curriculum Condition and Test Time

Fall Prekindergarten Spring Prekindergarten Spring Kindergarten Spring First Grade
Variable N M (SD) N M (SD) N M (SD) N M (SD)
Tools of the Mind condition
Letter‐Word 492 91.57 (12.91) 465 100.03 (10.87) 459 107.61 (11.27) 443 108.13 (11.32)
Spelling 492 80.21 (12.23) 465 88.61 (13.92) 459 99.44 (13.90) 443 99.00 (15.05)
Academic Knowledge 492 87.45 (18.03) 465 92.69 (14.57) 459 94.58 (12.45) 443 94.53 (11.48)
Oral Comprehension 492 90.03 (13.25) 465 93.91 (13.87) 459 97.07 (12.93) 443 98.62 (11.73)
Picture Vocabulary 492 91.90 (20.71) 465 95.58 (13.79) 459 94.88 (11.47) 443 95.67 (10.48)
Applied Problems 492 92.84 (15.53) 465 98.63 (12.11) 459 100.17 (12.71) 443 99.58 (13.13)
Quantitative Concepts 492 85.74 (11.87) 465 92.28 (13.16) 459 96.69 (11.34) 443 94.89 (11.45)
Control condition
Letter‐Word 369 89.97 (13.23) 348 100.33 (11.81) 351 108.22 (12.15) 335 108.06 (12.80)
Spelling 369 78.03 (12.59) 348 86.59 (15.18) 351 100.34 (14.65) 335 100.18 (15.95)
Academic Knowledge 369 86.04 (18.25) 348 92.54 (14.99) 351 93.44 (13.52) 335 94.17 (12.77)
Oral Comprehension 369 89.06 (12.99) 348 93.92 (15.05) 351 96.37 (14.35) 335 97.73 (12.51)
Picture Vocabulary 369 91.53 (20.18) 348 95.89 (13.91) 351 94.60 (10.98) 335 94.94 (10.91)
Applied Problems 369 91.78 (14.74) 348 97.77 (12.89) 351 100.64 (12.52) 335 98.74 (12.87)
Quantitative Concepts 369 83.91 (11.99) 348 91.69 (13.20) 351 97.77 (12.20) 335 93.92 (12.39)

Note. Descriptive statistics for Tools condition provided in top panel and control condition in bottom panel. Woodcock–Johnson Wscores were used at the analytic variable for all models conducted in the study, standard scores (average standard score is 100 with a SD of 15) are reported to assist in the interpretation and generalizability of study findings.