A7.3 Standardized Difference-in-Differences, Data Collapsed at School Level
A7.4 Standardized Difference-in-Differences by Grade
Table 43. EGRA School Level Difference-in-Differences, Standardized Scores (1)
(2)
(3)
(5)
(6)
Passage Fluency
Reading Comp.
KG-G3
(4) Familiar Word Reading KG-G3
Letter Sounds
Onset Sounds
Non-word Reading
KG-G2
KG-G2
G1-G3
G1-G3
Bridge
3.77** (0.66)
0.29+ (0.15)
1.04* (0.37)
0.94* (0.35)
0.86+ (0.45)
0.80+ (0.41)
Baseline Task Score
5.48 (9.41)
-0.45 (0.75)
13.42+ (6.89)
3.67* (1.11)
5.38* (1.70)
0.94 (2.86)
Baseline Task Score ^2
-5.86 (9.83)
-0.80 (0.84)
-2.10 (2.04)
-0.12 (1.90)
-1.80 (1.21)
0.50 (1.73)
Baseline Task Score ^3
0.92 (1.37)
0.66 (0.54)
0.06 (0.15)
-0.29 (0.55)
0.23 (0.20)
0.05 (0.17)
Constant
1.75 (3.34)
1.10 (0.59)
-0.05 (0.44)
1.51 (0.99)
2.51* (0.88)
0.34 (1.14)
Count R-squared
12 0.89
12 0.62
12 0.79
12 0.85
12 0.85
12 0.77
Table 45. Kindergarten Simple Difference-in-Differences, Standardized Scores
Subtask Letter Sounds Onset Sounds Non-Word Reading Familiar Word Reading One to One Correspondence Number Identification Quantity Discrimination Addition 1
(7)
(8)
(9)
(10)
(11)
One to One Corresp.* KG
Number Id.* KG-G1
Quantity Disc. KG-G2
Addition 1 KG-G3
Addition 2* G2-G3
Bridge
0.29 (0.17)
0.41** (0.09)
0.34** (0.10)
0.85** (0.10)
0.27* (0.11)
0.26 (0.16)
0.10 (0.17)
0.25* (0.10)
Baseline Task Score
2.31* (0.87)
1.65** (0.37)
1.82* (0.70)
1.05** (0.24)
0.24 (0.38)
0.07 (0.30)
2.12* (0.69)
0.87 (0.74)
Baseline Task Score ^2
-0.89 (0.82)
-0.23+ (0.11)
-0.30 (0.36)
-0.47 (0.36)
-0.76* (0.27)
0.29 (0.49)
1.25 (0.84)
-0.40* (0.16)
Baseline Task Score ^3
-0.66 (0.53)
0.01 (0.01)
-0.40 (0.38)
0.09 (0.05)
0.07 (0.23)
-0.02 (0.05)
-1.04+ (0.45)
-0.05 (0.25)
Constant
1.49+ (0.61)
0.36** (0.06)
1.13** (0.28)
1.04** (0.30)
1.17** (0.24)
0.45 (0.42)
0.04 (0.53)
0.69** (0.16)
Count R-squared
10 0.67
11 0.95
12 0.93
12 0.94
12 0.75
12 0.49
12 0.66
12 0.77
Learning in Liberia: Literacy and Numeracy Gains in Year 1
(13)
Subtraction Subtraction 1 2* G1-G3 G2-G3
Traditional Public School Baseline Endline Mean Count Mean Diff 91 -0.26 -0.19 0.07 91 -0.30 0.33 0.62 91 -0.15 -0.16 -0.01 91 -0.56 -0.40 0.16 90 0.22 0.29 0.07 91 0.05 0.24 0.19 91 -0.40 0.37 0.76 90 -0.44 0.04 0.49
Diff-nDiff 3.97 0.17 1.79 1.14 0.41 0.36 0.33 0.72
Table 46. Grade 1 Simple Difference-in-Differences, Standardized Scores
Table 44. EGMA School Level Difference-in-Differences, Standardized Scores (12)
Bridge PSL Public School Baseline Endline Mean Count Mean Diff 53 -0.23 3.82 4.05 53 -0.26 0.53 0.79 53 -0.22 1.56 1.79 53 -0.60 0.70 1.30 53 -0.15 0.33 0.48 53 -0.36 0.20 0.55 53 -0.84 0.25 1.09 53 -1.00 0.21 1.21
(14) Word Problems G1-G3
Subtask Letter Sounds Onset Sounds Non-Word Reading Familiar Word Reading Passage Fluency Reading Comprehension Number Identification Quantity Discrimination Addition 1 Subtraction 1 Word Problems
Traditional Public School Baseline Endline Mean Count Mean Diff 92 -0.05 0.80 0.85 92 -0.08 0.64 0.72 92 -0.20 0.70 0.90 92 -0.40 0.36 0.75 92 -0.48 0.18 0.65 92 -0.24 -0.12 0.13 92 0.18 0.56 0.38 92 0.25 0.82 0.58 92 -0.05 0.50 0.55 92 -0.34 0.34 0.69 92 -0.36 -0.06 0.30
Diff-nDiff 2.41 0.12 0.91 1.53 1.62 1.37 0.18 0.59 0.85 0.52 0.40
Table 47. Grade 2 Simple Difference-in-Differences, Standardized Scores
Subtask Letter Sounds Onset Sounds Non-Word Reading Familiar Word Reading Passage Fluency Reading Comprehension Quantity Discrimination Addition 1 Addition 2 Subtraction 1 Subtraction 2 Word Problems
80
Bridge PSL Public School Baseline Endline Mean Count Mean Diff 69 -0.08 3.17 3.26 69 0.16 1.00 0.84 69 -0.19 1.62 1.81 69 -0.30 1.99 2.28 69 -0.37 1.91 2.28 69 -0.22 1.28 1.50 69 0.27 0.83 0.56 69 0.18 1.34 1.16 69 -0.23 1.17 1.40 69 -0.47 0.73 1.21 69 -0.50 0.20 0.70
Bridge PSL Public School Baseline Endline Mean Count Mean Diff 76 0.19 3.80 3.62 76 0.23 1.25 1.03 79 0.20 3.45 3.24 76 0.24 2.48 2.24 79 0.17 2.77 2.60 79 0.04 2.51 2.47 76 0.58 1.31 0.73 79 0.35 1.83 1.48 78 -0.16 0.57 0.74 79 -0.04 1.08 1.13 78 -0.27 0.43 0.70 79 0.13 0.65 0.52
Learning in Liberia: Literacy and Numeracy Gains in Year 1
Traditional Public School Baseline Endline Mean Count Mean Diff 64 0.58 1.08 0.50 64 0.38 1.06 0.68 67 0.31 1.35 1.04 67 0.27 1.31 1.05 67 -0.18 1.27 1.45 67 -0.22 1.01 1.23 64 0.54 1.16 0.62 67 0.27 1.06 0.79 67 -0.03 0.27 0.30 67 0.21 0.68 0.47 67 -0.04 0.22 0.26 67 0.09 0.53 0.45
Diff-nDiff 3.11 0.35 2.21 1.19 1.16 1.24 0.11 0.69 0.44 0.66 0.44 0.07
81
