Sentences with phrase «better measure a variable»

In an effort to reduce the error rate with those methods, the researchers proposed a new measure called the influence score, or I - score, to better measure a variable's ability to predict.

Not exact matches

(R - square is a statistical measure that reveals how well a regression line — the line of best fit you see — explains the relationship between two variables.

Their variables measure how open and competitive the electoral system is and how controlled the executive is in its use of power — not the perfect measure of Hallow's idea, but the best that we have.

Even if it was a good measure of altruism, the other problems with such experiments still apply, and «experimenter demand» effects are common confounding variables.

All we have are scientific models that present best guesses based on the limited abilities we have to measure the limited variables we have identified.

As we identify more variables, and as we invent better means to measure, those models, and the best guess they represent will change.

Four of Buck's indices — communication, technology, bureaucratic organization, and money and market complex — seem to measure this variable very well.

You can generally measure economic risks using quantitative variables showing the development of the country as well as its potential weaknesses and risks.

A new generation of researchers who think about how best to measure variables such as patient preferences and quality - of - life issues is coming of age now, McDonald adds.

For the study, the researchers measured variables of grief including hopelessness, sadness and loneliness as well as depression and PTSD.

«They were able to simulate an eating situation quite well, and they measured quite a few different variables.»

«We're hoping to impress upon the scientific community the notion that for those of us who might be interested in predicting an outcome of interest, possibly with rather complex or high dimensional data, we might gain by reconsidering the question as one of how to search for highly predictive variables (or variable sets) and using statistics that measure predictivity to help us identify those variables to then predict well,» Lo said.

«People are very variable, so to be able to measure the same thing, in the same diet, is a good design,» Niswender said.

If we're really trying to do a great job, we'd also measure their body composition, energy expenditure, and maybe a few other variables as well.

To understand the links between variables better, we investigated the correlations between measures of primary endpoint muscle mass (FFM and RSMM), strength (handgrip), inflammation (CRP), and quality of life (SF - 36 mental component summary and PCS), then between muscle mass (FFM and RSMM), strength (handgrip), function (ADL), and hormonal status (IGF - I).

A study of weight maintenance (or loss) that measures energy flows comprehensively and monitors all relevant metabolic variables would be good.

And the other variable we really want to encourage schools to measure is, «If you told an adult, did things get better?»

to consider should be the following: 1) the achievement of full employment or reduction in the unemployment rate; 2) increase the income distribution measured by the Gini index; 3) reduction of the levels of crime in society; 4) increase in service levels of education, health, housing and transport to the population; 5) increase of the investment in infrastructure, education, health, housing and sanitation; 6) increase in the HDI - Human Development Index, used by the United Nations, which takes into account GDP per capita, the longevity of people and their education (measured by illiteracy rate and the enrollment rates at various levels of education); and 7) increase of GNH (Gross National Happiness) indicator, which analyzes 73 variables that contribute most to the goal of achieving the well - being and satisfaction with life (See GNH posted in website

The failure of any other variable to add much to the achievement prediction simply shows that good reading habits are much more important to achievement than family income and other measures of social class.

The analysis also took into account students» age, gender, eligibility for the free lunch program, and whether they had been assigned to a small class, as well as variables measuring the demographic composition of the student's class.

These models gradually exclude the NCES variables that suffered from the biases discussed above, replacing them with better measures of student characteristics.

The point is that the regression will award the explanatory power to whichever measures best capture the variation in the true variables.

In a nutshell, she points out that the MET study asked whether actual observation of teaching, student surveys, or VAM test score measures did a better job of predicting future student test score growth, which «privileges» test scores by using it both as a variable being tested and as the outcome reflecting gains.

In the process, they generate data by measuring marble roll distances multiple times, pool their data, and enter it on line plots to better see, understand, and analyze how manipulating the different variables affects the outcomes.

Compared with the last - gen TT RS, the 2.5 - liter turbo five in the new - for - 2018 model breathes better (thanks to new cylinder head with variable valve lift and duration timing on the exhaust cam), weighs nearly 60 pounds less (an aluminum block, magnesium upper sump, and other fat - reducing measures), and makes considerably more power, the byproduct of new port fuel injection and an increase in boost pressure from 18.1 to 19.6 psi.

Powered by a 104bhp 1.6 - litre Duratorq TDCi diesel engine, it uses a new injection system and turbocharger as well as enhanced air cooling and friction reduction measures including low - friction piston ring coatings and a variable flow oil pump.

Measurement of Elasticities: As per our experts who offer the best assignment help, elasticity is all about measuring how responsive one variable is to a change in another variable.

Everyone wants to have «good credit» and the most common variable used to measure this is the credit score, a three digit number from 300 - 850.

On the other hand, a variable interest rate is not fixed over the life of the loan, and is typically tied to a financial index, which itself is a measure of how well stocks, bonds, and other market conditions are doing.

We can define periods of economic and market agreement and periods of discord by using timely variables, such as the New Orders series from the monthly Institute for Supply Management (ISM) Report, to forecast the probability, at any time, of agreement between the economy and the market.5 Typically macro-based measures suffer from a significant lag in reporting as well as frequent revisions, making them inferior to the immediacy of observing market data, month by month, day by day, even tick by tick.

However these researchers decided to measure a number of owner related variables as well.

Your time as a volunteer will most commonly be repaid with a free ticket to the event and some food and drink; probably a t - shirt of variable quality thrown in for good measure.

There are too many variables in the real world, not all of them well known or measured, some even unknown.

And for some applications a simple scaling may be sufficient, as long as all relevant variables can be well scaled with a single temperature measure.

As long as there is a real causative physical relationship known, and you have a good reason to believe you have accounted for all the other important variables, statistically - measured phenomenology is almost the only way we know anything for sure about the world.

Pekka, to claim that the temperature effect of CO2 absorbing IR in the atmosphere is unmeasurable except in the atmosphere is a good way of glossing over the fact that the claimed warming phenomenon (backradiation or insulation or IR absorption) is: a. imprecisely described, and non-existent according to G&T b. untested in the laboratory — probably because it hasn't been precisely described c. very small according to the precisely measured radiative transfer data precisely modeled in Spectralcalc d. confounded by other variables in the real atmosphere

The second comment is that as far as I know the entropy maximization requires a well defined measure, which is not available for a continuous variable without some extra information.

The findings of this research revealed that the questionnaire used to measure the three variables demonstrated good qualities in terms of reliability and validity.

Recent theoretical work suggests that bullying might arise out of early cognitive deficits — including language problems, imperfect causal understanding, and poor inhibitory control — that lead to decreased competence with peers, which over time develops into bullying.14, 15 A small number of studies provide circumstantial evidence that such a hypothesis might have merit7: 1 study found a link between poor early cognitive stimulation and (broadly defined) inappropriate school behavior, 16 and another found cognitive stimulation at age 3 years to be protective against symptoms of attention - deficit disorder at age 7 years.17 A study of Greek children found that academic self - efficacy and deficits in social cognition were related to bullying behavior.18 A large US national survey found that those who perceive themselves as having average or below - average academic achievement (as opposed to very good achievement) are 50 % to 80 % more likely to be bullies.8 Yet these studies are based on cross-sectional surveys, with the variables all measured at a single point in time.

To confirm that randomization produced equivalent study groups within and across study sites, frequency distributions and descriptive statistics (ie, means, medians, modes, and SDs) were calculated for all demographic and clinical variables, as well as preintervention measures.

We hypothesised that (1) objective measures of availability / access to destinations, greenness and a pedestrian - friendly infrastructure would be negatively associated with depressive symptoms; (2) environmental stressors such as signs of crime / disorder, pollution, traffic - related variables and presence of stray dogs would be positively associated with depressive symptoms; (3) older adults living alone would report more depressive symptoms than their counterparts; (4) and the negative effects of living alone on depressive symptoms would be attenuated by better access / availability of destinations and lower levels of environmental stressors.

Measures for which rates are well documented, such as lifetime prevalence of suicidality, were consistent with other available data.31, 32 Examination of discriminate and convergent validity in between variable analyses within the survey also showed predictable relationship patterns.

The data were analyzed to determine whether families who left the study were different with respect to major demographic factors (eg, age, race, or gender) and / or baseline clinical variables (eg, Pediatric Risk of Mortality scores or mothers» trait anxiety), as well as the BASC measures before the 12 - month follow - up assessment.

Confirmatory Factor Analysis: A type of factor analysis where the researcher begins with a preconceived notion or hypothesis of which factors influence which variables and then measures how well the results and data fit the hypothesis.

Lack of access to early trauma and family dysfunction variables as well as measures of general cognitive impairment at baseline.

As presented in Table 2, the mean scores and standard deviations at pre and post-test measures of life satisfaction, as well as the positive and negative affect and self - compassion variables for intervention and control group were calculated separately.

These measures spanned a total of 50 variables describing maternal health and well - being; partner adjustment; family stability, relationship satisfaction, and family violence; family material circumstances and material well - being; and family susceptibility to stress and crisis.

So we were able to look at the differences between unhappily married people who divorced and those who stayed married on a number of psychological variables, including: global happiness, depressive symptoms, sense of personal mastery, self - esteem, hostility, autonomy, sense of purpose in life, and self - acceptance, as well as indirect measures such as days of drinking and number of drinks per day.

In addition to standard demographic variables (such as age, race, gender, income and education), the NSFH contains measures of marital happiness, domestic violence, conflict and a wide variety of measures of psychological well - being including: global happiness, depressive symptoms, sense of personal mastery, and self - esteem.

This process involves comparing several variables common to both files and generates a single numerical measure of how well two particular records match.