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Assessment Literacy. Three Free Tools for Creating Data Visualizations. Last night I shared the news about Canva's new education site that offers lesson plans the incorporate creating visual representations of information.

Three Free Tools for Creating Data Visualizations

I realize that Canva is not for everyone as it might be too simple for some applications or there is something else about it that you just don't like. Here are some other tools that I've used over the years to create data visualizations. Map a List turns Google Spreadsheet information into Google Maps placemarks. Confusing Stats Terms Explained: Internal Consistency — Stats Make Me Cry. Internal consistency is typically measured using Cronbach's Alpha (α).

Confusing Stats Terms Explained: Internal Consistency — Stats Make Me Cry

Cronbach's Alpha ranges from 0 to 1, with higher values indicating greater internal consistency (and ultimately reliability). Common guidelines for evaluating Cronbach's Alpha are: .00 to .69 = Poor.70 to .79 = Fair .80 to .89 = Good .90 to .99 = Excellent/Strong. Chi-Square Test of Independence. This lesson explains how to conduct a chi-square test for independence.

Chi-Square Test of Independence

The test is applied when you have two categorical variables from a single population. It is used to determine whether there is a significant association between the two variables. For example, in an election survey, voters might be classified by gender (male or female) and voting preference (Democrat, Republican, or Independent). Standard Deviation and Variance. Deviation just means how far from the normal Standard Deviation The Standard Deviation is a measure of how spread out numbers are.

Standard Deviation and Variance

Its symbol is σ (the greek letter sigma) The formula is easy: it is the square root of the Variance. So now you ask, "What is the Variance? " DataLab. New York this week became the 10th state (plus D.C.) to join the National Popular Vote Interstate Compact.


The compact represents a clever workaround to the Electoral College. By signing on, states agree they will award their electoral votes to the winner of the national popular vote (for example, New York would have given its electoral votes to George W. Bush in 2004). However, the measure will only be triggered once states accounting for a majority of electoral votes have joined. There are 538 electoral votes (hence the name of this website), so a majority is 270. Z Scores and T Scores. Z Scores A Z score (also known as a z value, standard score, and normal score) is used to describe a particular score in terms of where it fits into an overall group of scores.

Z Scores and T Scores

Tutorials. How to Edit R Charts in Adobe Illustrator A detailed guide for R users who want to polish their charts in the popular graphic design app for readability and aesthetics.


How to Make an Animated Map in R, Part 4 In the the last part of the four-part series, you make a longer animation with more data and annotate. Transitioning Map, Part 3: Animate Change Over Time. Let's Talk Data: 22 SXSWedu Sessions Getting It Right. Using_Student-involved_assessmentpdf.pdf. Reversing course on controversial PARCC, CPS to test all students. CPS back-tracked on its previous stance on Monday, saying it will give the new PARCC exam to all students instead of just those students in 10 percent of schools.

Reversing course on controversial PARCC, CPS to test all students

Meanwhile, parents are setting in motion a major opt-out campaign a week before the March 9 date on which testing is scheduled to begin. (Schools have 20 days to give the test.) The district’s decision was perhaps a foregone conclusion since the state announced that up to $1.4 billion in state and federal funding was at stake CPS didn’t test its students on the new state-mandated test, which is becoming increasingly controversial across the country.

Illinois risked losing federal funds if it didn’t test 95 percent of students in the state, impossible if CPS gave the test in just a small sample of schools. “We cannot accept this risk,” School Board President David Vitale said Monday. Officials had also said the district didn’t have the technical capacity to administer the computer-based PARCC, developed by a consortium of states. Measurement and Assessment in Teaching, 10/e. Learning Objectives. The Teaching Profession in 2014 (in Charts) - Teaching Now. What is Silk? UTRU_Assessment_and_Data_Literacy_Scope_and_Sequenceccssocover.pdf. Data Inventory. Sample Data Sets. There's so much data out there, sometimes it's tough to know where to start.

Sample Data Sets

We've compiled three interesting data sets for you to get started with, and some simple questions to try to answer. You'll also find a viz for each sample data set that you can download to help answer the questions and further explore. Click the ‘download’ link in the bottom right-hand corner of any viz to download the workbook. Medals Won by Olympic Athletes This sample data set has medals and athletes from each Olympic Games since the 2000 Games in Sydney, Australia. Get the data here: OlympicAthletes.xlsx (source: Sports Reference) Some analysis ideas: How many medals have athletes won since the 2000 Games?

ELSI - Elementary and Secondary Information System.