Skip to main content

Home/ Diigo In Education/ Group items tagged estimation measure

Rss Feed Group items tagged

Filter: All | Bookmarks | Topics Simple Middle
meghankelly492

Classical Test Theory and Music Testing - Oxford Handbooks - 2 views

www.oxfordhandbooks.com/...oxfordhb-9780190248093-e-21

world Music

shared by meghankelly492 on 18 Apr 20 - No Cached
  • applications of classical test theory to K-12 music education assessment are considered
  • ransition from classical test theory to modern test theory is explored.
  • During this period, measurement was viewed as a mechanism by which human traits could be identified and individuals compared
  • ...10 more annotations...
  • At the heart of CTT is the notion that error is endemic to measurement.
  • By the beginning of the 20th century, the concept of (p. 462) measurement error was well recognized, and psychometricians focused their efforts on estimating and accounting for error.
  • In CTT, an observed measure or score (X) consists of two constituent parts—the true score (T) and measurement error (E):
  • . Measurement error, however, also will account for a certain portion of score variance.
  • According to CTT, measurement error arises because mental processes are idiosyncratic and in a state of change such that individuals are incapable of performing optimally on a single test or performance task.
  • random error and systematic error.
  • (SEM) represents the average of the total random error for all individuals
  • SEM represents the spread of observed scores for a single individual if that person were tested multiple times.
  • That score, however, is an imperfect measure of the student’s true ability.
  • For example, CTT provides in-depth analysis of item characteristics,
Martin Burrett

Sailing Challenge - 57 views

www.echalk.co.uk/...sailing.swf

maths angles measure estimation

shared by Martin Burrett on 23 Apr 12 - No Cached
  • Martin Burrett on 23 Apr 12
     
    Measure and estimate angles with this nautical-themed site. http://ictmagic.wikispaces.com/Maths
smilex3md

Who is Bigger? - 45 views

www.whoisbigger.com

bigger book sna socialnetworks history wikipedia algorithm computational

shared by smilex3md on 15 Jun 13 - No Cached
  • smilex3md on 15 Jun 13
     
    We have developed computational methods to measure historical significance through analysis of Wikipedia and other data sources. We rank historical figures just as Google ranks webpages, by integrating a diverse set of measurements about their reputation (including PageRank, article length, and readership) into estimates of their fame, explained by a combination of achievement (gravitas) and celebrity. We correct for the passage of time in a principled way, so we can fairly compare the significance of historical figures of different eras. - See more at: http://www.whoisbigger.com/#sthash.6tN6cebp.dpuf
Martin Burrett

Scale Challenge - 98 views

www.echalk.co.uk/...throwing.swf

scale place value measure throwing maths

shared by Martin Burrett on 19 Apr 12 - No Cached
  • Martin Burrett on 19 Apr 12
     
    This is a useful sport themed maths resource about measuring and estimating decimals, scales and place value. http://ictmagic.wikispaces.com/Maths
Jennifer Jensen

Collaborative Pumpkin Project - 65 views

www.theteacherscorner.net/...project-pumpkin

collaboration fall data math Halloween projects pumpkins measurement

shared by Jennifer Jensen on 26 Oct 10 - No Cached
  • Jennifer Jensen on 26 Oct 10
     
    This free project has classrooms using three pumpkins - students will first make estimates and then take various measurements of each pumpkin. They will then count the seeds contained within each pumpkin. All data, other than estimates, will be posted via a GoogleDoc. As pumpkin data begins to be uploaded, classes can begin analyzing the data shared by all.
Lisa C. Hurst

Inside the School Silicon Valley Thinks Will Save Education | WIRED - 9 views

www.wired.com/altschool

shared by Lisa C. Hurst on 05 May 15 - No Cached
  • Lisa C. Hurst on 05 May 15
     
    "AUTHOR: ISSIE LAPOWSKY. ISSIE LAPOWSKY DATE OF PUBLICATION: 05.04.15. 05.04.15 TIME OF PUBLICATION: 7:00 AM. 7:00 AM INSIDE THE SCHOOL SILICON VALLEY THINKS WILL SAVE EDUCATION Click to Open Overlay Gallery Students in the youngest class at the Fort Mason AltSchool help their teacher, Jennifer Aguilar, compile a list of what they know and what they want to know about butterflies. CHRISTIE HEMM KLOK/WIRED SO YOU'RE A parent, thinking about sending your 7-year-old to this rogue startup of a school you heard about from your friend's neighbor's sister. It's prospective parent information day, and you make the trek to San Francisco's South of Market neighborhood. You walk up to the second floor of the school, file into a glass-walled conference room overlooking a classroom, and take a seat alongside dozens of other parents who, like you, feel that public schools-with their endless bubble-filled tests, 38-kid classrooms, and antiquated approach to learning-just aren't cutting it. At the same time, you're thinking: this school is kind of weird. On one side of the glass is a cheery little scene, with two teachers leading two different middle school lessons on opposite ends of the room. But on the other side is something altogether unusual: an airy and open office with vaulted ceilings, sunlight streaming onto low-slung couches, and rows of hoodie-wearing employees typing away on their computers while munching on free snacks from the kitchen. And while you can't quite be sure, you think that might be a robot on wheels roaming about. Then there's the guy who's standing at the front of the conference room, the school's founder. Dressed in the San Francisco standard issue t-shirt and jeans, he's unlike any school administrator you've ever met. But the more he talks about how this school uses technology to enhance and individualize education, the more you start to like what he has to say. And so, if you are truly fed up with the school stat
Caroline Dutton

Health - 0 views

www.cleancookstoves.org/...health-impacts.html

clean cookstoves health research project 2013

shared by Caroline Dutton on 12 Feb 13 - No Cached
  • The World Health Organization (WHO) estimates that exposure to smoke from the simple act of cooking is the fifth worst risk factor for disease in developing countries, and causes almost two million premature deaths per year – exceeding deaths attributable to malaria or tuberculosis.
  • Women in developing countries are also at risk of head and spinal injuries, pregnancy complications, and maternal mortality from the strenuous task of carrying heavy loads of firewood or other fuels. Frequent exposure to cookstove smoke can also cause disabling health impacts like cataracts, which affect women more than men, and is the leading cause of blindness in developing countries.
  • Rudimentary wood-fired cookstoves and open fires emit fine particles, carbon monoxide, and other pollutants at levels up to 100 times higher than the recommended limits set by WHO
  • ...5 more annotations...
  • A randomized-control study in Guatemala led by the University of California, Berkeley, found that halving exposure to indoor air pollution with a chimney stove brought about a reduction in severe pneumonia, and that larger reductions in exposure had more pronounced effects. A systematic review of all available studies on the link between solid fuel use and child pneumonia has found an almost doubling of risk for those exposed.
  • Burns from open fires and unsafe cookstoves are another insidious risk faced by poor households dependent on kerosene, open fires, and unstable metal or clay cookstoves, contributing to a substantial percentage of the estimated 300,000 burn deaths that occur annually
  • While the link between exposure to cookstove smoke and a wide range of health problems such as pneumonia, chronic obstructive pulmonary disease, and lung cancer is well established, the current body of evidence linking cookstoves with other potentially important health effects is compelling but less documented
  • Nearly all of the existing evidence is based on observational studies that compare groups using open fires and traditional cookstoves with those using cleaner fuels, with very little being directly obtained from studies that directly measure the effects of interventions.
  • More evidence is needed to demonstrate that the levels of exposure reduction delivered by clean cookstove and fuels will result in declines in related illnesses and deaths.
  • Caroline Dutton on 12 Feb 13
     
    This is the Global alliance for Clean Cookstoves website. They offer much information about the issues surrounding the topic and their action plan for affecting change!
Holly Barlaam

Virtual Microscope Measuring - 122 views

virtualurchin.stanford.edu/microscope.htm

microscope biology field of view magnification resolution

shared by Holly Barlaam on 21 Nov 10 - Cached
  • Holly Barlaam on 21 Nov 10
     
    Really cool online microscope that walks you through the different objective lens magnifications, shows you how to calculate field of view on different magnifications, and then has you use these skills to estimate the size of different specifmens on slides. Very neat.
Sarah Schaller Welsh

Freakonomics » Evaluating Teachers: What About Doing it the Old-Fashioned Way? - 88 views

www.freakonomics.com/...evaluating-teachers-still-work

education

shared by Sarah Schaller Welsh on 08 Feb 12 - No Cached
  • A substantial literature documents large variation in teacher effectiveness at raising student achievement, providing motivation to identify highly effective and ineffective teachers early in their careers. Using data from New York City public schools, we estimate whether subjective evaluations of teacher effectiveness have predictive power for the achievement gains made by teachers’ future students. We find that these subjective evaluations have substantial power, comparable with and complementary to objective measures of teacher effectiveness taken from a teacher’s first year in the classroom.
1 - 9 of 9
Showing 20▼ items per page