We estimated teacher value - added ignoring students» tracks and courses, as is typically done, and then we re-estimated with track / course effects.
Not exact matches
The most sophisticated approach uses a statistical technique known as a
value - added model, which attempts to filter out sources of bias in the test - score growth so as to arrive at an
estimate of how much each
teacher contributed to student learning.
Value - Added Model (VAM): In the context of teacher evaluation, value - added modeling is a statistical method of analyzing growth in student - test scores to estimate how much a teacher has contributed to student - achievement gr
Value - Added Model (VAM): In the context of
teacher evaluation,
value - added modeling is a statistical method of analyzing growth in student - test scores to estimate how much a teacher has contributed to student - achievement gr
value - added modeling is a statistical method of analyzing growth in student - test scores to
estimate how much a
teacher has contributed to student - achievement growth.
Roughly 9 percentage points, or about one - fifth, of the 52 percent compensation advantage R & B claim is due to their
estimated value of greater
teacher job security.
The authors address three criticisms of
value - added (VA) measures of
teacher effectiveness that Stanford University education professor Linda Darling - Hammond and her colleagues present in a recent article: that VA
estimates are inconsistent because they fluctuate over time; that
teachers»
value - added performance is skewed by student assignment, which is non-random; and that
value - added ratings can't disentangle the many influences on student progress.
After controlling for the baseline achievement of students, peers and the
teacher's own
value - added in prior years, we
estimated the variance in student outcomes associated with the textbooks used.
• In the Measures of Effective Teaching Project, students were surveyed about many dimensions of the instruction they received and these were correlated with their
teachers»
value - added
estimates.
Ultimately, the enhancement we study was very expensive for the district — in 2013 dollars, we
estimate the cost in present
value was $ 166 million just for the single cohort of
teachers working when it was enacted.
The overlap between the subgroup of
teachers who received a layoff notice and the subgroup of
teachers who received one in our simulation is relatively small — only 23
teachers (or 16 percent of the
teachers for whom we could
estimate value - added who received a layoff notice).
Pages of Download Grade 2 Practice Sheets: 1 - Cover 2 - For the
Teacher 3 - 6 - Measurement Length 7 - 11 - Measurement Height 12 - 15 - Place
Value 16 - 20 - Ordinal Numbers 21 - 25 - Smallest / Largest Number in a set of numbers 26 - 29 - Greater than 30 - 33 - Less than 34 - 36 - Greater than / Less than 37 - 39 - Add or subtract write the sign in the blank 40 - 45 - Adding using place value (example: 4 + 13 + 5) 46 - 51 - Adding with words - Example - what is 150 more than 200 52 - 55 - Skip Counting 56 - 59 - Skip Counting - Missing Numbers on a Number line 60 - 65 - Reading Graphs 65 - 71 - Solving Word Problems 72 - 76 - Time 77 - 83 - Coin Identification and Coin counting 84 - 88 - Counting Dollars and coins 89 - 92 - Geometry 93 - 96 - Fractions 97 - 115 - Answer Keys 116 - 118 - Terms of Use and Credits Pages of Download Grade 3 Practice Sheets: 1 - Cover 2 - For the Teacher 3 - 6 - Measurement Length 7 - 11 - Measurement Height 12 - 19 - Place Value 20 - 24 - Find the smallest / largest number from a set of numbers 25 - 28 - Number Words 29 - 32 - Skip Counting - complete the sequence 33 - 37 - Counting dollars and coins 38 - 48 - Reading thermometers - temperature 49 - 53 - Reading graphs 54 - 57 - Reading Calendars 58 - 62 - Numerators and Denominators 63 - 67 - Fraction Circles 68 - 72 - Fractions of a solid 73 - 78 - Word Problems 79 - 83 - Data Tables 84 - 88 - Multi-Step Word Problems 89 - 92 - Rounding to the nearest ten 93 - 96 - Rounding to the nearest hundred 97 - 100 - Rounding word problems 101 - 103 - Probability 104 - 107 - Geometry - identifying shapes 108 - 110 - Height of a triangle 111 - 113 - Angles identifying right, acute, and obtuse 114 - 117 - Symmetry and Angles 118 - 121 - Perimeter 122 - 125 - Area 126 - 129 - Elapsed Time 130 - 155 - Answer Keys 156 - 158 - Credits and Terms of Use Pages of Download Grade 4 practice sheets: 1 - Cover 2 - For the Teacher 3 - 6 - Measurement Length 7 - 11 - Patterns 12 - 15 - Parallel and Perpendicular Lines 16 - 26 - Reading Temperature 27 - 31 - Reading Graphs 32 - 36 - Coordinate Graphs 37 - 41 - Skip Counting - complete the sequence 42 - 46 - Place Value 47 - 50 - Number Words 51 - 55 - Powers of 10 56 - 60 - Adding using Place Value 61 - 70 - Fractions 71 - 75 - Fraction Word Problems 76 - 80 - Convert Fractions to Decimals 81 - 85 - Convert Decimals to Fractions 86 - 90 - Height of a figure 91 - 95 - Missing Number in an equation 96 - 100 - Balancing Equations 101 - 105 - Data Tables - ordering numbers 106 - 110 - Data Table Addition 111 - 115 - Data Table Time 116 - 120 - Data Table Subtraction 121 - 125 - Estimation Word Problems 126 - 130 - Ratio Word Problems 131 - 134 - Probability 135 - 140 - Spinner Probability 141 - 145 - Arrays 146 - 173 - Answer Keys 174 - 177 - Credits and Terms of Use Pages of Download Grade 5 Sheets: 1 - Cover 2 - For the Teacher 3 - 7 - Units of Measure 8 - 12 - Reading Graphs 13 - 17 - Number Words 18 - 22 - Place Value 23 - 27 - Decimal Place Value 28 - 32 - Rounding Numbers 33 - 37 - Complete the sequence, skip counting 38 - 42 - Solving Equations 43 - 47 - Variable Equations 48 - 52 - Simplify Expressions 53 - 57 - Finding the Mean 58 - 62 - Mean, Median, Mode 63 - 67 - Greatest Common Factor 68 - 72 - Fractions 73 - 77 - Comparing a set of Fractions 78 - 83 - Comparing Multiple Fractions 84 - 93 - Fraction Word Problems 94 - 98 - Estimating / Estimation Word Problems 99 - 103 - Possible Outcome Problems 104 - 108 - Distance Word Problems 109 - 113 - Division Word Problems 114 - 118 - Ratio Word Problems 119 - 124 - Coordinate Graphs 125 - 130 - Perimeter 131 - 135 - Area 136 - 145 Elapsed Time Clocks and Watches 146 - 171 - Answer Keys 172 - 175 - Credits and Terms o
Value 16 - 20 - Ordinal Numbers 21 - 25 - Smallest / Largest Number in a set of numbers 26 - 29 - Greater than 30 - 33 - Less than 34 - 36 - Greater than / Less than 37 - 39 - Add or subtract write the sign in the blank 40 - 45 - Adding using place
value (example: 4 + 13 + 5) 46 - 51 - Adding with words - Example - what is 150 more than 200 52 - 55 - Skip Counting 56 - 59 - Skip Counting - Missing Numbers on a Number line 60 - 65 - Reading Graphs 65 - 71 - Solving Word Problems 72 - 76 - Time 77 - 83 - Coin Identification and Coin counting 84 - 88 - Counting Dollars and coins 89 - 92 - Geometry 93 - 96 - Fractions 97 - 115 - Answer Keys 116 - 118 - Terms of Use and Credits Pages of Download Grade 3 Practice Sheets: 1 - Cover 2 - For the Teacher 3 - 6 - Measurement Length 7 - 11 - Measurement Height 12 - 19 - Place Value 20 - 24 - Find the smallest / largest number from a set of numbers 25 - 28 - Number Words 29 - 32 - Skip Counting - complete the sequence 33 - 37 - Counting dollars and coins 38 - 48 - Reading thermometers - temperature 49 - 53 - Reading graphs 54 - 57 - Reading Calendars 58 - 62 - Numerators and Denominators 63 - 67 - Fraction Circles 68 - 72 - Fractions of a solid 73 - 78 - Word Problems 79 - 83 - Data Tables 84 - 88 - Multi-Step Word Problems 89 - 92 - Rounding to the nearest ten 93 - 96 - Rounding to the nearest hundred 97 - 100 - Rounding word problems 101 - 103 - Probability 104 - 107 - Geometry - identifying shapes 108 - 110 - Height of a triangle 111 - 113 - Angles identifying right, acute, and obtuse 114 - 117 - Symmetry and Angles 118 - 121 - Perimeter 122 - 125 - Area 126 - 129 - Elapsed Time 130 - 155 - Answer Keys 156 - 158 - Credits and Terms of Use Pages of Download Grade 4 practice sheets: 1 - Cover 2 - For the Teacher 3 - 6 - Measurement Length 7 - 11 - Patterns 12 - 15 - Parallel and Perpendicular Lines 16 - 26 - Reading Temperature 27 - 31 - Reading Graphs 32 - 36 - Coordinate Graphs 37 - 41 - Skip Counting - complete the sequence 42 - 46 - Place Value 47 - 50 - Number Words 51 - 55 - Powers of 10 56 - 60 - Adding using Place Value 61 - 70 - Fractions 71 - 75 - Fraction Word Problems 76 - 80 - Convert Fractions to Decimals 81 - 85 - Convert Decimals to Fractions 86 - 90 - Height of a figure 91 - 95 - Missing Number in an equation 96 - 100 - Balancing Equations 101 - 105 - Data Tables - ordering numbers 106 - 110 - Data Table Addition 111 - 115 - Data Table Time 116 - 120 - Data Table Subtraction 121 - 125 - Estimation Word Problems 126 - 130 - Ratio Word Problems 131 - 134 - Probability 135 - 140 - Spinner Probability 141 - 145 - Arrays 146 - 173 - Answer Keys 174 - 177 - Credits and Terms of Use Pages of Download Grade 5 Sheets: 1 - Cover 2 - For the Teacher 3 - 7 - Units of Measure 8 - 12 - Reading Graphs 13 - 17 - Number Words 18 - 22 - Place Value 23 - 27 - Decimal Place Value 28 - 32 - Rounding Numbers 33 - 37 - Complete the sequence, skip counting 38 - 42 - Solving Equations 43 - 47 - Variable Equations 48 - 52 - Simplify Expressions 53 - 57 - Finding the Mean 58 - 62 - Mean, Median, Mode 63 - 67 - Greatest Common Factor 68 - 72 - Fractions 73 - 77 - Comparing a set of Fractions 78 - 83 - Comparing Multiple Fractions 84 - 93 - Fraction Word Problems 94 - 98 - Estimating / Estimation Word Problems 99 - 103 - Possible Outcome Problems 104 - 108 - Distance Word Problems 109 - 113 - Division Word Problems 114 - 118 - Ratio Word Problems 119 - 124 - Coordinate Graphs 125 - 130 - Perimeter 131 - 135 - Area 136 - 145 Elapsed Time Clocks and Watches 146 - 171 - Answer Keys 172 - 175 - Credits and Terms o
value (example: 4 + 13 + 5) 46 - 51 - Adding with words - Example - what is 150 more than 200 52 - 55 - Skip Counting 56 - 59 - Skip Counting - Missing Numbers on a Number line 60 - 65 - Reading Graphs 65 - 71 - Solving Word Problems 72 - 76 - Time 77 - 83 - Coin Identification and Coin counting 84 - 88 - Counting Dollars and coins 89 - 92 - Geometry 93 - 96 - Fractions 97 - 115 - Answer Keys 116 - 118 - Terms of Use and Credits Pages of Download Grade 3 Practice Sheets: 1 - Cover 2 - For the
Teacher 3 - 6 - Measurement Length 7 - 11 - Measurement Height 12 - 19 - Place
Value 20 - 24 - Find the smallest / largest number from a set of numbers 25 - 28 - Number Words 29 - 32 - Skip Counting - complete the sequence 33 - 37 - Counting dollars and coins 38 - 48 - Reading thermometers - temperature 49 - 53 - Reading graphs 54 - 57 - Reading Calendars 58 - 62 - Numerators and Denominators 63 - 67 - Fraction Circles 68 - 72 - Fractions of a solid 73 - 78 - Word Problems 79 - 83 - Data Tables 84 - 88 - Multi-Step Word Problems 89 - 92 - Rounding to the nearest ten 93 - 96 - Rounding to the nearest hundred 97 - 100 - Rounding word problems 101 - 103 - Probability 104 - 107 - Geometry - identifying shapes 108 - 110 - Height of a triangle 111 - 113 - Angles identifying right, acute, and obtuse 114 - 117 - Symmetry and Angles 118 - 121 - Perimeter 122 - 125 - Area 126 - 129 - Elapsed Time 130 - 155 - Answer Keys 156 - 158 - Credits and Terms of Use Pages of Download Grade 4 practice sheets: 1 - Cover 2 - For the Teacher 3 - 6 - Measurement Length 7 - 11 - Patterns 12 - 15 - Parallel and Perpendicular Lines 16 - 26 - Reading Temperature 27 - 31 - Reading Graphs 32 - 36 - Coordinate Graphs 37 - 41 - Skip Counting - complete the sequence 42 - 46 - Place Value 47 - 50 - Number Words 51 - 55 - Powers of 10 56 - 60 - Adding using Place Value 61 - 70 - Fractions 71 - 75 - Fraction Word Problems 76 - 80 - Convert Fractions to Decimals 81 - 85 - Convert Decimals to Fractions 86 - 90 - Height of a figure 91 - 95 - Missing Number in an equation 96 - 100 - Balancing Equations 101 - 105 - Data Tables - ordering numbers 106 - 110 - Data Table Addition 111 - 115 - Data Table Time 116 - 120 - Data Table Subtraction 121 - 125 - Estimation Word Problems 126 - 130 - Ratio Word Problems 131 - 134 - Probability 135 - 140 - Spinner Probability 141 - 145 - Arrays 146 - 173 - Answer Keys 174 - 177 - Credits and Terms of Use Pages of Download Grade 5 Sheets: 1 - Cover 2 - For the Teacher 3 - 7 - Units of Measure 8 - 12 - Reading Graphs 13 - 17 - Number Words 18 - 22 - Place Value 23 - 27 - Decimal Place Value 28 - 32 - Rounding Numbers 33 - 37 - Complete the sequence, skip counting 38 - 42 - Solving Equations 43 - 47 - Variable Equations 48 - 52 - Simplify Expressions 53 - 57 - Finding the Mean 58 - 62 - Mean, Median, Mode 63 - 67 - Greatest Common Factor 68 - 72 - Fractions 73 - 77 - Comparing a set of Fractions 78 - 83 - Comparing Multiple Fractions 84 - 93 - Fraction Word Problems 94 - 98 - Estimating / Estimation Word Problems 99 - 103 - Possible Outcome Problems 104 - 108 - Distance Word Problems 109 - 113 - Division Word Problems 114 - 118 - Ratio Word Problems 119 - 124 - Coordinate Graphs 125 - 130 - Perimeter 131 - 135 - Area 136 - 145 Elapsed Time Clocks and Watches 146 - 171 - Answer Keys 172 - 175 - Credits and Terms o
Value 20 - 24 - Find the smallest / largest number from a set of numbers 25 - 28 - Number Words 29 - 32 - Skip Counting - complete the sequence 33 - 37 - Counting dollars and coins 38 - 48 - Reading thermometers - temperature 49 - 53 - Reading graphs 54 - 57 - Reading Calendars 58 - 62 - Numerators and Denominators 63 - 67 - Fraction Circles 68 - 72 - Fractions of a solid 73 - 78 - Word Problems 79 - 83 - Data Tables 84 - 88 - Multi-Step Word Problems 89 - 92 - Rounding to the nearest ten 93 - 96 - Rounding to the nearest hundred 97 - 100 - Rounding word problems 101 - 103 - Probability 104 - 107 - Geometry - identifying shapes 108 - 110 - Height of a triangle 111 - 113 - Angles identifying right, acute, and obtuse 114 - 117 - Symmetry and Angles 118 - 121 - Perimeter 122 - 125 - Area 126 - 129 - Elapsed Time 130 - 155 - Answer Keys 156 - 158 - Credits and Terms of Use Pages of Download Grade 4 practice sheets: 1 - Cover 2 - For the
Teacher 3 - 6 - Measurement Length 7 - 11 - Patterns 12 - 15 - Parallel and Perpendicular Lines 16 - 26 - Reading Temperature 27 - 31 - Reading Graphs 32 - 36 - Coordinate Graphs 37 - 41 - Skip Counting - complete the sequence 42 - 46 - Place
Value 47 - 50 - Number Words 51 - 55 - Powers of 10 56 - 60 - Adding using Place Value 61 - 70 - Fractions 71 - 75 - Fraction Word Problems 76 - 80 - Convert Fractions to Decimals 81 - 85 - Convert Decimals to Fractions 86 - 90 - Height of a figure 91 - 95 - Missing Number in an equation 96 - 100 - Balancing Equations 101 - 105 - Data Tables - ordering numbers 106 - 110 - Data Table Addition 111 - 115 - Data Table Time 116 - 120 - Data Table Subtraction 121 - 125 - Estimation Word Problems 126 - 130 - Ratio Word Problems 131 - 134 - Probability 135 - 140 - Spinner Probability 141 - 145 - Arrays 146 - 173 - Answer Keys 174 - 177 - Credits and Terms of Use Pages of Download Grade 5 Sheets: 1 - Cover 2 - For the Teacher 3 - 7 - Units of Measure 8 - 12 - Reading Graphs 13 - 17 - Number Words 18 - 22 - Place Value 23 - 27 - Decimal Place Value 28 - 32 - Rounding Numbers 33 - 37 - Complete the sequence, skip counting 38 - 42 - Solving Equations 43 - 47 - Variable Equations 48 - 52 - Simplify Expressions 53 - 57 - Finding the Mean 58 - 62 - Mean, Median, Mode 63 - 67 - Greatest Common Factor 68 - 72 - Fractions 73 - 77 - Comparing a set of Fractions 78 - 83 - Comparing Multiple Fractions 84 - 93 - Fraction Word Problems 94 - 98 - Estimating / Estimation Word Problems 99 - 103 - Possible Outcome Problems 104 - 108 - Distance Word Problems 109 - 113 - Division Word Problems 114 - 118 - Ratio Word Problems 119 - 124 - Coordinate Graphs 125 - 130 - Perimeter 131 - 135 - Area 136 - 145 Elapsed Time Clocks and Watches 146 - 171 - Answer Keys 172 - 175 - Credits and Terms o
Value 47 - 50 - Number Words 51 - 55 - Powers of 10 56 - 60 - Adding using Place
Value 61 - 70 - Fractions 71 - 75 - Fraction Word Problems 76 - 80 - Convert Fractions to Decimals 81 - 85 - Convert Decimals to Fractions 86 - 90 - Height of a figure 91 - 95 - Missing Number in an equation 96 - 100 - Balancing Equations 101 - 105 - Data Tables - ordering numbers 106 - 110 - Data Table Addition 111 - 115 - Data Table Time 116 - 120 - Data Table Subtraction 121 - 125 - Estimation Word Problems 126 - 130 - Ratio Word Problems 131 - 134 - Probability 135 - 140 - Spinner Probability 141 - 145 - Arrays 146 - 173 - Answer Keys 174 - 177 - Credits and Terms of Use Pages of Download Grade 5 Sheets: 1 - Cover 2 - For the Teacher 3 - 7 - Units of Measure 8 - 12 - Reading Graphs 13 - 17 - Number Words 18 - 22 - Place Value 23 - 27 - Decimal Place Value 28 - 32 - Rounding Numbers 33 - 37 - Complete the sequence, skip counting 38 - 42 - Solving Equations 43 - 47 - Variable Equations 48 - 52 - Simplify Expressions 53 - 57 - Finding the Mean 58 - 62 - Mean, Median, Mode 63 - 67 - Greatest Common Factor 68 - 72 - Fractions 73 - 77 - Comparing a set of Fractions 78 - 83 - Comparing Multiple Fractions 84 - 93 - Fraction Word Problems 94 - 98 - Estimating / Estimation Word Problems 99 - 103 - Possible Outcome Problems 104 - 108 - Distance Word Problems 109 - 113 - Division Word Problems 114 - 118 - Ratio Word Problems 119 - 124 - Coordinate Graphs 125 - 130 - Perimeter 131 - 135 - Area 136 - 145 Elapsed Time Clocks and Watches 146 - 171 - Answer Keys 172 - 175 - Credits and Terms o
Value 61 - 70 - Fractions 71 - 75 - Fraction Word Problems 76 - 80 - Convert Fractions to Decimals 81 - 85 - Convert Decimals to Fractions 86 - 90 - Height of a figure 91 - 95 - Missing Number in an equation 96 - 100 - Balancing Equations 101 - 105 - Data Tables - ordering numbers 106 - 110 - Data Table Addition 111 - 115 - Data Table Time 116 - 120 - Data Table Subtraction 121 - 125 - Estimation Word Problems 126 - 130 - Ratio Word Problems 131 - 134 - Probability 135 - 140 - Spinner Probability 141 - 145 - Arrays 146 - 173 - Answer Keys 174 - 177 - Credits and Terms of Use Pages of Download Grade 5 Sheets: 1 - Cover 2 - For the
Teacher 3 - 7 - Units of Measure 8 - 12 - Reading Graphs 13 - 17 - Number Words 18 - 22 - Place
Value 23 - 27 - Decimal Place Value 28 - 32 - Rounding Numbers 33 - 37 - Complete the sequence, skip counting 38 - 42 - Solving Equations 43 - 47 - Variable Equations 48 - 52 - Simplify Expressions 53 - 57 - Finding the Mean 58 - 62 - Mean, Median, Mode 63 - 67 - Greatest Common Factor 68 - 72 - Fractions 73 - 77 - Comparing a set of Fractions 78 - 83 - Comparing Multiple Fractions 84 - 93 - Fraction Word Problems 94 - 98 - Estimating / Estimation Word Problems 99 - 103 - Possible Outcome Problems 104 - 108 - Distance Word Problems 109 - 113 - Division Word Problems 114 - 118 - Ratio Word Problems 119 - 124 - Coordinate Graphs 125 - 130 - Perimeter 131 - 135 - Area 136 - 145 Elapsed Time Clocks and Watches 146 - 171 - Answer Keys 172 - 175 - Credits and Terms o
Value 23 - 27 - Decimal Place
Value 28 - 32 - Rounding Numbers 33 - 37 - Complete the sequence, skip counting 38 - 42 - Solving Equations 43 - 47 - Variable Equations 48 - 52 - Simplify Expressions 53 - 57 - Finding the Mean 58 - 62 - Mean, Median, Mode 63 - 67 - Greatest Common Factor 68 - 72 - Fractions 73 - 77 - Comparing a set of Fractions 78 - 83 - Comparing Multiple Fractions 84 - 93 - Fraction Word Problems 94 - 98 - Estimating / Estimation Word Problems 99 - 103 - Possible Outcome Problems 104 - 108 - Distance Word Problems 109 - 113 - Division Word Problems 114 - 118 - Ratio Word Problems 119 - 124 - Coordinate Graphs 125 - 130 - Perimeter 131 - 135 - Area 136 - 145 Elapsed Time Clocks and Watches 146 - 171 - Answer Keys 172 - 175 - Credits and Terms o
Value 28 - 32 - Rounding Numbers 33 - 37 - Complete the sequence, skip counting 38 - 42 - Solving Equations 43 - 47 - Variable Equations 48 - 52 - Simplify Expressions 53 - 57 - Finding the Mean 58 - 62 - Mean, Median, Mode 63 - 67 - Greatest Common Factor 68 - 72 - Fractions 73 - 77 - Comparing a set of Fractions 78 - 83 - Comparing Multiple Fractions 84 - 93 - Fraction Word Problems 94 - 98 -
Estimating / Estimation Word Problems 99 - 103 - Possible Outcome Problems 104 - 108 - Distance Word Problems 109 - 113 - Division Word Problems 114 - 118 - Ratio Word Problems 119 - 124 - Coordinate Graphs 125 - 130 - Perimeter 131 - 135 - Area 136 - 145 Elapsed Time Clocks and Watches 146 - 171 - Answer Keys 172 - 175 - Credits and Terms of Use
For the subset of
teachers who can be linked to students, we are able to
estimate value - added measures of classroom performance for each
teacher in each year.
This has profound implications: Chetty and colleagues
estimate that replacing a
teacher whose
value added is in the bottom 5 percent of the distribution with an average
teacher would increase the present discounted
value of students» lifetime income by more than $ 250,000 for a typical class (of 28 students).
This allows for the use of statistical models to
estimate the total contribution — that attributable to both observable and unobserved
teacher attributes — of
teachers toward student test - score gains (often referred to as «
value added»).
Teachers who receive ratings at or close to the median in the school have
estimated value - added measures that are quite widely dispersed.
For our analysis, the gains made by students in these classes count toward the
estimated value added of each of the two
teachers.
In his study, Hanushek calculated the economic
value related to effective teaching by drawing on a research literature that provides precise
estimates of the impact of students» achievement levels on their lifetime earnings, and by combining these figures with
estimated impacts of more - effective
teachers on student achievement.
As part of Brookings» ongoing series, The Brown Center Chalkboard, Professor Tom Kane's paper — «Do
Value - Added
Estimates Identify Causal Effects of
Teachers and Schools?»
But we can calculate more prosaic economic
values related to effective teaching, by drawing on a research literature that provides surprisingly precise
estimates of the impact of student achievement levels on their lifetime earnings and by combining this with
estimated impacts of more - effective
teachers on student achievement.
This allows them to measure family characteristics (such as parental income) not typically controlled for when
teacher value - added is
estimated.
Our
estimates imply that replacing a
teacher whose
value added is in the bottom 5 percent with an average
teacher would increase students» cumulative lifetime income by a total of $ 1.4 million per classroom taught.
Following an existing literature on
teacher and school
value - added, this recent charter school research controls for student demographics and baseline academic achievement in order to
estimate the effectiveness of individual schools.
In a project with the Pittsburgh Public Schools, we developed
value - added statistical models that
estimate teachers» and schools» contributions to the achievement of their students.
The Times analysis used a «
value added» statistical analysis of math and English scores from the school district — the nation's second largest — to
estimate the effectiveness of third - through fifth - grade
teachers.
Unlike some other methods of
estimating teacher effectiveness, such as
value - added modeling, MGP calculations do not try to adjust for differences in student characteristics.
We designed
value - added models to measure
teacher and school effectiveness and have produced annual
estimates of educators» contributions to achievement in grades 4 - 8 since the 2008 - 2009 school year.
The Times analysis relied on a statistical approach known as «
value - added,» which
estimates the effectiveness of
teachers by crediting them for the gains students make over their performance in previous years on standardized tests in math and English.
The
value - added measures are designed to provide
estimates of the independent effect of the
teacher on the growth in a student's learning and to separate this from other influences on achievement such as families, peers, and neighborhoods.
Our findings suggest that the
value - added model
estimates provide meaningful information on
teacher and school performance.
In sum, there is now substantial evidence that
value - added
estimates capture important information about the causal effects of
teachers and schools.
To do so, they identified a group of
teachers with
estimated value - added in the top quintile in their state and district.
For these reasons, Chetty et al. left out a
teacher's data from year t and year t - 1 when generating their
value - added
estimates.
It is common in the implementation of
teacher accountability systems to use a procedure known as Empirical Bayes shrinkage to adjust the
teacher value - added
estimates by their level of precision.
The report, written by Mathematica's Peter Z. Schochet and Hanley S. Chiang, goes on to say that
value - added
estimates «in a given year are still fairly strong predictors of subsequent - year academic outcomes in the
teachers» classes.»
Researchers David Blazar (Doctoral Candidate at Harvard), Erica Litke (Assistant Professor at University of Delaware), and Johanna Barmore (Doctoral Candidate at Harvard) examined (1) the comparability of
teachers»
value - added
estimates within and across four urban districts and (2), given the extent to which variations observed, how and whether said
value - added
estimates consistently captured differences in
teachers» observed, videotaped, and scored classroom practices.
The bottom line here, then, is that those in charge of making consequential decisions about
teachers, as based even if in part on
teachers»
value - added
estimates, need to be cautious when making particularly high - stakes decisions about
teachers as based on said
estimates.
Hence, the validity of the inferences and statements asserting that one
teacher was effective or not as based on his / her
value - added
estimates is suspect, again, as based on the contexts in which
teachers teach, as well as when compared to whatever other comparable
teachers to whom
teachers are compared when
estimating teacher - level
value - added.
All
value - added methods aim to
estimate a
teacher's effectiveness in raising students» standardized test scores.
Teachers appear to
value retirement savings far more than empirical research had previously
estimated.
This occurred in large part due to Sanders's (and others») lobbying efforts when the federal government ultimately choose to incentivize and de facto require that all states hold their
teachers accountable for their
value - added, or lack thereof, while attaching high - stakes consequences (e.g.,
teacher termination) to
teachers»
value - added
estimates.
We also see that 43 percent of
teachers who had
value - added
estimates in the bottom quintile in one year remained there the next.
[3] Overall, a
teacher's
value - added
estimate in one year provides information about his or her
value added in the following year, but it is not perfectly predictive.
Using recent research on the impact of high «
value added»
teachers, the scholars
estimated that the state would in the long run recoup all but 5 percent of program costs through taxes on the higher income potential of students taught by these effective
teachers.
[4] Sometimes called selection bias, the problem is that student needs and parental resources are never directly accounted for in
value - added measures, even though they might affect student learning and therefore reduce validity of
teacher value - added
estimates.
This brief discusses the factors that may influence
value - added for
teachers of students with disabilities, and explores the implications of controlling for student disability status when
estimating value - added.
The researchers, including experts from Stanford University, Dartmouth College, Rand Corp. and the Educational Testing Service, acknowledged limits to the
value - added approach: Scores are not available for all
teachers,
estimates are often volatile from one year to the next and the results don't provide
teachers with feedback on how to improve.
In Florida, the District of Columbia, and a growing number of states and districts, performance measures, including
value - added
estimates, play a key role in placing
teachers in performance categories.
Rothstein: «[The]
value - added model is a statistical tool that tries to use student test scores to come up with
estimates of
teacher effectiveness.
The Times began publishing articles in August using
value - added analysis to
estimate the effectiveness of thousands of district
teachers in raising test scores.
Teachers»
value - added
estimates can vary widely from year to year, raising important concerns about their reliability, and strongly suggesting that several years of data should be used.
By Daniel F. McCaffrey What makes
estimating value - added for
teachers of students with disabilities challenging?