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IEA Data Visualizer User Guide

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1. 11 Select E E 11 ee 11 SSNS Fi seat sae nen sued 11 sway 11 11 PUNON 12 Mode ola 156 12 Mae SOWON ONS ates E E EE A EE OE 12 VoD a T 12 POPUD ee 12 SOTTO IW AD isa E coreoent meearaes 12 PINE terse baie 12 SWO T 12 Proportional a 12 SMCS 14 PANE ied 14 MaD iea 14 T
2. 15 iecactielea tents dancin 15 SAVE OF a 15 TOD aha T 15 TI Variable Tables i500 16 HMSSVariables Grade 4e beac sca aieseatans 16 MMSS Variables Grade eR ED OCA TOD Re PRO SE 16 DIES 17 1 About the IEA Data Visualizer The IEA Data Visualizer has been developed in order to provide new ways to view and compare data from the various cycles of the IEA TIMSS and PIRLS studies For clarity the results are shown without indication of standard errors Not all differences that can be seen are statistically significant Other tools such as the IEA IDB Analyzer may be used to estimate the correct standard errors and to apply tests of significance The aim of this software is to promote analysis by improving and facilitating the communication and interpretation of information by providing i interactive visualizations which facilitate the interpretation of information ii a user friendly interface that is accessible also to non technical users iii automated data visualization In particular trend analysis is facilitated by use of a Time Slider al
3. Background gradient w Map font size 9 Map symbol size 100 Legend estimate best value distribution Legend show maximum amp minimum values OK Map legend In summarized form you may alter the following e Map colors map background map borders map text color map text outline color etc e Map text size e Map symbol size proportional symbol map symbols Map legend estimate best value distribution adjust the values so that there is a more equal distribution of countries for each color class This will usually result in a map with a better distribution of colors If this is switched off the value range for each color class will be set at equal intervals based on the highest and lowest value in the data range Map legend show maximum minimum values e Map legend colors 14 Graph Chart e Graph colors background bar amp scatter points scatter point borders e Graph text size e Transparency level of graph area bars bubbles e Size of bubbles scatter plot graph e Bullet graph General options e Animation duration e Decimal places shown e Adjust the map graph scale The program automatically adjusts the map and graph scale to suit the data set However in some cases you may wish to keep it fixed for example if you have made some changes to it yourself You can set or prevent the automatic updating of the map graph scale on i changing indicator
4. CHEMISTRY EARTH SCIENCE BIOLOGY PHYSICS MATH KNOWING MATH APPLYING MATH REASONING SCIENCE KNOWING SCIENCE APPLYING SCIENCE REASONING INTERN MATH BENCHMARK INTERN SCIENCE BENCHMARK Overall Content Cognitive Benchmark 1995 ASMMATO ASSSCIO Variable name per Year 2003 ASMMATO ASSSCIO ASMKNOO ASMREAO ASSKNOO ASSREAO ASSIBMO1 2007 ASMMATO ASSSCIO ASMDATO ASMGEOO ASMNUMO ASSEARO ASSLIFO ASSPHY0 ASMKNOO ASMAPPO ASMREAO ASSKNOO ASSREAO ASSIBMO1 Variable name per Year 1999 BSSSCI0 BSSIBM01 2003 BSSSCI0 BSMKNOO BSMREAO BSSKNOO BSSAPPO BSSREAO BSSIBM01 2007 BSSSCIO BSMALGO BSMDATO BSMNUMO BSMGEOO BSSCHEO BSSEARO BSSBIOO BSSPHY0 BSMKNOO BSMREAO BSSKNOO BSSAPPO BSSREAO BSSIBM01 2011 ASMMATO ASSSCIO ASMDATO ASMGEOO ASMNUMO ASSEARO ASSLIFO ASSPHY0O ASMKNOO ASMREAO ASSKNOO ASSAPP0 ASSREAO ASSIBMO1 2011 BSMMATO BSMMATO BSMMATO BSMMATO BSMMATO BSSSCIO BSSSCIO BSMALGO BSMDATO BSMNUMO BSMGEOO BSSCHEO BSSEARO BSSBIOO BSSPHY0 BSMKNOO BSMREAO BSSKNOO BSSAPPO BSSREAO BSSIBM01 16 PIRLS Variables Category Variable Label Overall PLAUSIBLE VALUE OVERALL READING Content PLAUS
5. ii changing region iii changing year The default setting is for the program to adjust the scale when changing the indicator or region but not the year If you have chosen to not have the map scale updated the map legend has a shortcut which you can use to refresh the map legend at any time for the current indicator year and region Save export map or graph e Set the image type PNG or JPEG e Change the image size as of original e Change the image quality for JPEG images only 10 Data Table This table allows you to view the displayed data in tabular form Country G4 OVERALL MATHEMATICS 2011 Armenia 452 0 Australia 5416 0 Austria 508 0 Azerbaijan Repuk 463 0 Bahrain 436 0 Belgium Flemish 549 0 The arrow button can be used to export this data to a CSV format file 15 11 Variable Tables The following tables show the variables which may be displayed for each study TIMSS Variables Grade 4 Category Variable Label OVERALL MATHEMATICS OVERALL SCIENCE DATA DISPLAY GEOMETRY NUMBER EARTH SCIENCE LIFE SCIENCE PHYSICS MATH KNOWING MATH APPLYING MATH REASONING SCIENCE KNOWING SCIENCE APPLYING SCIENCE REASONING INTERN MATH BENCHMARK INTERN SCIENCE BENCHMARK Overall Content Cognitive Benchmark TIMSS Variables Grade 8 Category Variable Label 1995 OVERALL MATH OVERALL SCIENCE ALGEBRA DATA AND CHANCE NUMBER GEOMETRY
6. 1 33GHz or faster processor 128MB of RAM 128MB of RAM 512MB of RAM 128MB of graphics memory 128MB of VRAM Recommended for GPU hardware acceleration dependent features Flash Player will use software mode for systems that do not meet the system requirements See also http www adobe com products flashplayer html 3 Thematic Map She iE G4 OVERALL READING 2011 d ind 580 All regions 7 5 Slovak Republic Indicator Slovenia Country X South Africa Selection Spain Selection Sweden Panel Trinidad And Tobago Panel x i Turkov Map Legend tan O A Ml gt s40 y gt BB 513 540 DP 486 513 i 459 486 Yy lt 459 Function Buttons g No data 3 1 Start Page On starting the program the map displays an overview of IEA Participation this is simply an indicator of which countries have taken part in TIMSS PIRLS or both studies For general use you will want to select variables from the drop down menu above the graph Participation Value IEA Participants Y IEA Participation Benchmarks Trends 3 2 Choropleth Map This is the main thematic map type in the program The map legend shows which map colors are associated with each data range for example higher values may be shaded in increasingly darker colors Both the map colors and the data range can be customized see Map Legend below The following features are enabled Map info
7. and drag the map with the mouse to move it to a new position Restore map position the button shown on the left restores the map to the original coordinates for the selected region 3 3 Proportional Symbol Map A proportional symbol map scales symbols usually circles according to the indicator being mapped Each symbol can represent a country or other map area In this program the symbol map overlays the choropleth map see above This means that two data sets can be shown on the same map one for the choropleth map and one for the symbol map These proportional symbols may also be used as a third indicator in the Scatter Plot style of chart 4 Indicator Selection Panel G8 LOW MATH BENCHMARK Q G8 HIGH SCIENCE Sip o BENCHMARK 38 LOW MATH BENCHMA G8 INTERMEDIATE Mean 75 StDev 21 9 Range 78 SCIENCE BENCHMARK Honduras Republic of 21 Korea Republic of 99 This area is automatically populated with the options from the last group selected allowing for easy switching between related indicators In addition leaving the cursor over the selected indicator brings up a popup showing details of the mean standard deviation range and countries with the highest and lowest values 100 G8 A M Mean 75 StDev 21 9 Range 78 Honduras Republic of 21 BENC Korea Republic of 99 G8 INTERMEDIATE H 40 SCIENCE BENCHMARK v 1995 1996 199 5 Graph Panel The Graph
8. IBLE VALUE LITERARY PURPOSE PLAUSIBLE VALUE INFORMATIONAL PURPOSE Cognitive PLAUSIBLE VALUE INTERPRETING PROCESS PLAUSIBLE VALUE STRAIGHTFORWARD PROCESS Variable name per Year 2001 2006 2011 ASRREAO ASRREAOQ ASRREAO ASRLITO ASRLITO ASRLITO ASRINFO ASRINFO ASRIIEO ASRIIEO ASRIIEO ASRRSIO ASRRSIO ASRRSIO Benchmark INT READING SCALE BENCHMARK REACHED ASRIBM01 ASRIBMO1 ASRIBMO1 17
9. IEA Data Visualizer User Guide Manual Version 1 0 Parts 2012 StatSilk www statsilk com Creative Commons BY SA 3 0 Contents TADout tHE IEA Data ZC i oes ccons cctinsmresanuasieeeieeesreprnaneeaatines sacs 4 2 Systemi REGUIFSMMCIINS viccrraatwicesniersrestontiposwaact esta EE ati snae rs Anaya eins 5 ne eee ce eno N 6 Bits SUE FAC aa 6 6 Map information per COUNTIY ccccceseccccsseccceeesececseseceeceuseceeeusececseneceeseusecessuaecessegceeseesecetseneceteuees 6 lene COUNT E ee 7 Man LOREN E E 7 DFE O era E 7 Map ZOO E O E A E E SS 7 3 3 Proportional Symbol EE 7 ALOR SE IOC TIO Pane 8 BOAT PV gee sare se E 9 CO Chart Bar sessed ecetasac aes 9 incon E cadences 9 POU sare A E E E E E E E E E 9 Select x axis y axis WINN CAO ata R AE EEEE 10 GPR E ee oe 10 AdU ine ETON S ee ee 10 Adus Une er DNS ne en en are 10 DS caves 10
10. creen The second button restores the previous view Hide Show options Move the mouse over the View button in the bottom left corner of the screen to see various options for showing or hiding map and graph elements and other program components Map Area Labels Show or hide country or map area names on the map or graph country names can be shown in full in abbreviated form or as ISO3 codes Popup This allows you to select what is displayed in the popups which appear when moving the cursor over a country in the map or over the dot bar representing that country in the graph Symbol Map This brings up the Proportional Symbol Map see below Panels This selects which of the panels are visible Graph the Graph panel see Graph Panel Indicators the Indicator Selection panel see 4 Indicator Selection Panel Map Legend the key to the map colours see Map Legend in 3 Thematic Map Options the Options panel normally hidden see Section 9 below Select the Country Selection panel see 6 Country Selection Panel Table the Data Table panel normally hidden see Section 10 below F Save export This button enables you to save the current map or graph as an image or download the selected data as a CSV file To change the image type size or quality use the Options panel Proportional Symbol Map This button applies proportional symbols circles according to the indicator being mapped overlaid on the chlorople
11. d indicator to be visualized in the form of the bubble size This indicator can be selected through the drop down menu above the scatter plot The bubble size follows the formula value maximum value i Scatter Plot The scatter plot button is located in the top left corner of the Graph panel Clicking on the button will automatically use the selected indicator as the x axis variable You need to select a second indicator as the y axis variable The x axis and y axis variables can be selected in the Graph panel see below or in the Indicators panel Press the play button to see an animation of changes over time with each bubble point moving to the corresponding x and y positions depending on whether data is available for each time interval If Show trails is selected next to the play button each bubble will leave a trail to mark previous positions over time Clicking on a scatter plot bubble will display the associated label They can also be repositioned through drag and drop by right clicking and selecting move text labels or map points A third indicator can be visualized through the bubble size parameter This indicator can be selected through the drop down menu above the scatter plot The bubble size follows the formula value maximum value Select x axis y axis indicator G4 OVERALL READING 2001 Click on the x axis or y axis label then select an indicator from the drop down menu Note that thi
12. lowing data from different cycles to be compared Comparisons between different participating countries is intuitively made by clicking directly onto a world map or selecting the country names from an alphabetic list and it is possible to quickly switch between different styles of data plot in order to find the best style in which to display the data Finally it is possible to export all plots data maps and the current data selection as a CSV file 2 System Requirements The IEA Data Visualizer is designed to operate in as many places as possible regardless of the available computers and infrastructure It can be used online through an intranet as well as offline making it usable in places where there is no Internet connectivity It is easy to disseminate due to its very small size small enough to fit on any USB flash drive USB stick or to be sent as an e mail attachment The software does not require installation so even those without administrator rights on their PC can run both the offline and online versions The software runs with Adobe Flash Player which has the following minimum system requirements The system requirements are very low and any computer purchased within the past 8 years should be able to run the software Windows Macintosh Intel Pentium 450MHz PowerPC G3 500MHz or faster Modern processor 800MHz or AMD Athlon 600MHz or faster processor Intel Core Duo faster processor or equivalent
13. nel or Graph panel In each case it will be highlighted in all of these components Click on a country in the list to select it Clicking on a selected item will deselect it You can press the first one or two letters of an item in the list to quickly jump to that item For example if it contains a list of countries press b to quickly jump to countries starting with the letter b If this panel is hidden click the select button in the bottom left corner of the screen to make it appear Select regions Use the drop down menu in the top of the Country Selection Parnetpanel to select and zoom into a different region such as South Asia or Europe It is also possible to select countries to define a custom region Select button Press the Select button to reduce the list to your selection Any items which are not selected will be removed from view Deselect All button Press the Deselect All button to clear your selection Refresh button The Refresh button appears once you have created a custom region or group of items It can be used to return to the original list Ill Remove button To remove items from the list select those you wish to remove and press the Remove button 11 7 Function Buttons These buttons are found at the bottom left corner of the screen and enable the setup of viewing options and data export 5 kis Full Screen Mode Open Close The first of these buttons expands the display to fill the s
14. panel is the panel above the map used for the display of selected data as graphs according to the chart style chosen LI w FullScreen Restore Use the Full Screen button to expand the graph to fill the available screen When the graph is full screen the map and Indicator Selection panel will not be shown however the Country Selector panel remains as an integrated area if you want to you can remove this by clicking on the Selection The Restore button returns the display to its original state Column Chart Bar Chart The bar chart and column chart buttons are located in the top left corner of the Graph panel 1 Use the sort button to sort the graph from lowest to highest from highest to lowest from highest to lowest starting in the middle or alphabetically io Time series The time series button is located in the top left corner of the Graph panel Use the Selection panel to add countries or other variables depending on your data set to the time series graph Click on the country variable again if you wish to remove it Countries can also be selected directly from the map sSee also Selection anel Use the sort button to sort the time series labels m a Vertical Bubble Chart This button enables the display of country data as with the column chart but with the values on the y axis marked as bubbles rather than the top of a column This display type has the advantage that it allows a secon
15. rmation per country Moving the mouse over a country brings up a popup containing information about that particular country for the selected indicator as well as the bookmarked indicator if there is one Selecting a country You can select a country by clicking on it once in the map Each time you do this for a new country with data in the relevant dataset this country will be added to the selection Clicking on a selected country will remove it from the selection See also the Selection panel for additional selection options Map Legend Clicking on any of the colors in the legend will bring up a color selection panel In this panel you can change the colors either Sequential or Diverging color schemes as well as the number of color classes between 3 and 9 Sequential Diverging Color picker azai J 1 E OK Data range To adjust the data range of the map legend click on the top or bottom value Use the popup to increase or decrease the value or enter a whole new value The intermediate values will be adjusted automatically BS zoom The map zoom controls are normally hidden from view Move the mouse towards the bottom right corner of the screen to make them appear Zoom You can zoom in and out of the map using the zoom in and zoom out buttons or by dragging the zoom slider up or down If your mouse has a scroll wheel you can also use this to zoom in and out Moving the map click
16. s x axis selection acts as a bookmark for use in the program a small panel appears to show this Use the drop down menu in the top of the Graph panel to change the scale of the bubbles according to a selected indicator fe Graph Options Use the Graph Options icon in the Graph panel to show or hide the trendline Move the mouse over the trendline to see the slope and trendline equation Adjusting graph size To change the graph size move the mouse to the sides or corners of the Graph panel until you see the cursor change to look like the one shown on the left Click and hold down the left mouse button then drag the panel to the size you want Release the mouse button once you have the right size Adjusting graph scale The graph scale can be adjusted by clicking on the top or bottom graph values The value can then be edited in the popup window A Search The search function brings up a popup which enables you to filter a list of indicators to find the one you need The example shows the filter geo applied to find indicators for the subject Geometry Search geo G4 GEOMETRY TIMSS Grade4 Content G8 GEOMETRY TIMSS Grade8 Content Close 10 6 Country Selection Panel Countries can be selected in various ways An efficient way of finding and selecting a country is through the Country Selection panel as explained below However a country can also be selected by clicking on it in the map Data Table pa
17. th map To show the symbol map click the symbol icon shown above If you have 12 bookmarked an indicator the symbol map represents the data for the bookmarked indicator whereas the choropleth map represents the data for the selected indicator If the bookmarked indicator is currently selected both the symbol map and the choropleth map represent the bookmarked indicator T Data Table This button brings up the usually hidden Data Table pPanel see section 10 below Selection Panel button If the Selection panel is hidden click the select button in the bottom left corner of the screen to make it appear 13 8 Time Slider The Time Slider allows you to compare data from cycle to cycle It appears at the bottom of the screen below the map 1995 2011 gt Use the slider or click on the arrow buttons to change the year Click on the play button to show changes over time as an animation starting from the beginning The animation speed can be set in the Options panel Note that if a Benchmark rather than the Benchmark Trends category is selected then the slider changes to display the four benchmarking variables Low Intermediate High and Advanced 9 Options Panel This panel is normally hidden from view select from the Hide Show options and is only used to select options relating to the overall display and export settings Se 1 Map Graph Chart General Export Map colors

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