Since 1975, Southeastern Asset Management's investment philosophy has been to consistently employ our time -
tested value approach to long - only equity investing based on owning strong businesses with good people at deeply discounted prices.
Not exact matches
We
tested the decile
approach and the joint
approach in Quantitative
Value, substituting better performing value metrics and found different res
Value, substituting better performing
value metrics and found different res
value metrics and found different results.
«Vitaliy has done the world a significant favor; he shows, in erudite fashion, that
value investing (the one tried and
tested investment
approach) holds in range - bound markets.
My hope is that we will move forward with a more nuanced, inclusive, and humble
approach to the Bible, one that leaves room for a diversity of interpretations and applications while preserving the Bible's time -
tested value and authority.
This lack of transparency to a consumer seeking out «shade coffee» or coffee that is grown using field -
tested approaches to maximizing the
value of agroforestry to biodiversity is, in my opinion, an enormous problem.
A second
approach would use a synthetic data set that substitutes
values for the original data set and then
tests to see whether the synthetic data yield results that «are good enough» to satisfy the researcher.
This allows us to
test our models independently and combine both
approaches to obtain parameter
values with unprecedented precision.»
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.
In this light we have come to know the best way to advocate for people is to
approach them, learn from them, their cultures,
values and their
tested practices in order to create platforms where others can borrow, replicate, adapt and transform their own lives for their immediate wellbeing and the wellbeing of mankind.
The results of this
approach may also be biased in favor of schools serving more advantaged students if the
test - score growth of disadvantaged students differs in ways not captured by the
value - added model.
We examine three broad
approaches to measuring student
test - score growth: aggregated student growth percentiles, a one - step
value - added model, and a two - step
value - added model.
While this
approach contrasts starkly with status quo «principal walk - through» styles of class observation, its use is on the rise in new and proposed evaluation systems in which rigorous classroom observation is often combined with other measures, such as teacher
value - added based on student
test scores.
The Times used a statistical
approach known as
value - added analysis, which rates teachers based on their students» progress on standardized
tests from year to 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 annual
testing in grades 3 through 8 required by the federal law will make it possible for states and districts to use «
value added»
approaches to measuring the performance of schools.
Spurred by the administration, school districts around the country have moved to adopt «
value added» measures, a statistical
approach that relies on standardized
test scores to measure student learning.
This
approach is different from using
value - added measures of standardized
tests as a significant component in an evaluation and separates the San Jose system from one favored by reform groups like StudentsFirst.
By contrast,
value - added
approaches allow for real analyses of all teachers for whom
test scores are available.
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.
As Dropout Nation noted last week in its report on teacher evaluations, even the most - rigorous classroom observation
approaches are far less accurate in identifying teacher quality than either
value - added analysis of
test score data or even student surveys such as the Tripod system used by the Bill & Melinda Gates Foundation as part of its Measures of Effective Teaching project.
Summary: In this article, Angela Duckworth speaks about her research into Grit and other performance
values and voices a concern about the prospect of using
testing measures to determine how schools
approach character and social - emotional learning.
Moreover, even in the cases where
tests already exist, such as for teachers of reading and mathematics in grades 3 - 8,
value - added
approaches raise significant concerns.
Value - added
approaches hold great promise, but there is a need to develop better
tests (and other thoughtful measures of student learning) and better measures of teacher practice to use along with
test scores, so they are not the sole factor used to evaluate teacher effectiveness.
The lesson of the NRC - NAEd report is that even though
value - added methodologies offer a number of advantages over other
approaches that consider
test - score data in a vacuum, policymakers need to move carefully in adopting any
approach —
value - added or otherwise — in making important decisions about individual teachers.
The study also found that student gains on standardized
tests reflected meaningful learning and critical thinking skills, not just
test preparation or memorization — a frequent concern of critics of the
value - added
approach.
Project - based learning's student - focused
approach, which
values the process of learning for each child rather than simply recording
test grades, forces everyone in the building to work more closely together, Philadelphia educators in the project - based learning schools say.
Yi's
approach seems to work: She is rated «highly effective» in a
value - added analysis by The Times based on her students» standardized
test scores in English and math.
Although
value - added is one of the more advanced statistical
approaches, researchers have raised concerns about its reliability, as well as potential unintended consequences, such as demoralizing teachers and placing greater emphasis on standardized
tests.
If you are to give validity to the
value - added
approach to measuring a teacher's performance, the prerequisite is that the standardized
test is a valid measure of a student's learning and knowledge, and that in itself is controversial.
For example, VAMs are useful «for researchers comparing large groups of teachers to investigate the effects of teacher training
approaches or educational policies, or simply to investigate the size and importance of long - term teacher effects... [I] t is clear that
value - added scores are far superior to unadjusted end - of - year student
test scores» (Haertel, 2013, p. 23).
The paper, by Raj Chetty and John N. Friedman of Harvard and Jonah E. Rockoff of Columbia, tracked 2.5 million students over 20 years, and using a
value added
approach, found that teachers who help students raise their standardized
test scores have a lasting positive effect on those students» lives beyond academics, including lower teenage - pregnancy rates, greater college matriculation and higher adult earnings.
Cabot Benjamin Graham
Value Investor is suitable for long - term investors seeking to profit based on the time - tested systems developed by Benjamin Graham, whose value investing approach achieved returns of 20 % per year with low risk regardless of the market's ups and d
Value Investor is suitable for long - term investors seeking to profit based on the time -
tested systems developed by Benjamin Graham, whose
value investing approach achieved returns of 20 % per year with low risk regardless of the market's ups and d
value investing
approach achieved returns of 20 % per year with low risk regardless of the market's ups and downs.
In the next few blogs, we will detail our
approach to and back -
tested results of employing credit spread (
value) and volatility as factors in order to systematically construct a portfolio of U.S. investment - grade corporate bonds.
However, unlike the time -
tested value investing
approach, many of today's investment plans are not worth sticking with.
We
tested the decile
approach and the joint
approach in Quantitative
Value, substituting better performing value metrics and found different res
Value, substituting better performing
value metrics and found different res
value metrics and found different results.
Southeastern Asset Management has employed a time -
tested value investment
approach globally since 1975.
it is important to recognize that an inherent difficulty of
testing null hypotheses is that one can not confirm (statistically) the hypothesis of no effect.While robustness checks (reported in the appendix), as well as p
values that never
approach standard levels of statistical significance, provide some confidence that the results do not depend on model specification or overly strict requirements for statistical significance, one can not entirely dismiss the possibility of a Type II error.
In addition to supporting the development of national forest certification systems in several countries, we are working with a variety of partners to pilot
test new
approaches to group certification for smallholders, support
value chain development and provide training to build the required capacity for forest certification to succeed.
One possible
approach is to
test down from high orders and examine the t -
values on coefficients.
To
test whether a males» car affected women's likelihood of sharing their digits, the male confederates waited in one of three cars (high, medium, or low
value) before getting out and
approaching the women.
Fit indices used to evaluate the model included a χ2 goodness - of - fit
test (nonsignificant
values indicate good fits), the comparative fit index (scores of > 0.95 indicate better fits), the root mean square error of approximation (
values of < 0.05 indicate good fits), and the standardized root mean square residual (
values of < 0.08 indicate good fits).43, 44 Missing
values were imputed through multiple imputation by using functions in the missing data library in S - Plus (Insightful Corp, Seattle, WA).45, 46 The combined data for the cross - lagged / survival model converged more quickly with 15 imputed data sets than did the model that used a likelihood - based
approach to missing data.
Indeed by taking the three stands of the
approach and applying the recognitions by honoring, installing positive emotion and building «inner wealth» in the form of character strengths and
values, we get rule compliance, increased
test scores, reduced challenging behavior but above all, we build relationships that percolate positivity.
In the context of a trusting, collaborative, mutually respectful working alliance, therapist - clients can
test the
value of novel perspectives and creative
approaches.
In search of golden rules: Comment on hypothesis -
testing approaches to setting cutoff
values for fit indexes and danger in overgeneralizing Hu and Bentler's (1999) findings
In search of golden rules: Comment on hypothesis
testing approaches to setting cutoff
values for fit indices and dangers in overgeneralizing Hu and Bentler's (1999) findings