This shows you the differences between two versions of the page.
Both sides previous revision Previous revision Next revision | Previous revision Next revision Both sides next revision | ||
erds:start [2011/06/06 11:04] agross |
erds:start [2020/07/01 12:07] corley [Testing Summary Files:] |
||
---|---|---|---|
Line 3: | Line 3: | ||
Three parallel twin studies of early reading development were conducted in Australia, Colorado, and Scandinavia (Norway & Sweden). Investigators Brian Byrne, Richard Olson, and Stefan Samuelsson have committed to creating a unified data set suitable for cross-country comparisons. This study is known by a host of acronyms including: | Three parallel twin studies of early reading development were conducted in Australia, Colorado, and Scandinavia (Norway & Sweden). Investigators Brian Byrne, Richard Olson, and Stefan Samuelsson have committed to creating a unified data set suitable for cross-country comparisons. This study is known by a host of acronyms including: | ||
- | RDS: Reading Development Study | + | * RDS: Reading Development Study |
- | ERDS: Early Reading Development Study | + | |
- | ILTS: | + | |
- | LSERD: Longitudinal Study of Early Reading Development (thus the lizard) | + | |
Line 20: | Line 20: | ||
Data from each assessment wave from each country is sent to a single location (currently IBG - Robin Corley) for creation of a unified assessment wave data set, e.g., IT (Initial Test) or F1 (Follow-Up 1). Selected variables from the individual waves are then combined into a working individual-level cross-assessment file, and a twin-pair (double-entered) cross-assessment file. | Data from each assessment wave from each country is sent to a single location (currently IBG - Robin Corley) for creation of a unified assessment wave data set, e.g., IT (Initial Test) or F1 (Follow-Up 1). Selected variables from the individual waves are then combined into a working individual-level cross-assessment file, and a twin-pair (double-entered) cross-assessment file. | ||
- | ====== Scripts to create the cross-site assessment wave file ====== | + | ==== Progress: |
+ | 19-May-2020: | ||
- | [[https:// | + | In addition, creation of item-level files from the testing at each age is underway. |
- | [[https:// | + | Update of the files other than the item-level file expected by end of June, 2020. |
- | [[https:// | + | Documentation of the contents of each file expected by end of year, 2020 |
+ | ==== Scripts to create the cross-site assessment wave file ==== | ||
- | [[https:// | ||
- | ====== Output files: ====== | + | * [[https:// |
+ | * [[https:// | ||
+ | * [[https:// | ||
+ | * [[https:// | ||
+ | * [[https:// | ||
+ | ==== Testing Summary Files: ==== | ||
- | The files that are available for download are listed below. They represent SPSS Export (Portable) files that can be opened by either SPSS or SAS. | ||
- | | + | The files that are available for download are listed below. They represent SPSS Export (Portable) files that can be opened by either SPSS or SAS. These files represent the test session data collected from each twin. |
- | * F1 combined file: [[https:// | + | |
- | * F2 combined file: [[https:// | + | |
- | * F3 combined file: [[https:// | + | * F1 combined file: [[https:// |
- | * IT-F3 combined file: [[https:// | + | * F2 combined file: [[https:// |
+ | * F3 combined file: [[https:// | ||
+ | * F4 combined file: [[https:// | ||
+ | * IT-F4 combined file: [[https:// | ||
+ | * Post-9th grade file: [[https:// | ||
+ | |||
+ | ** Additional Information files ** | ||
+ | |||
+ | * IT-F4 health file: [[https:// | ||
+ | * Environmental measures: [[https:// | ||
+ | * Cumulative parent-teacher ratings: [[https:// | ||
+ | **ACCESS for non-SPSS users** | ||
+ | |||
+ | SPSS files can be read by SAS. If using R, this library package appears to " | ||
+ | |||
+ | < | ||
+ | library(haven) | ||
+ | df <- read_sav(' | ||
+ | </ | ||
+ | |||
+ | The combined IT-F4 data can also be accessed as an Excel file with the data on one sheet and labeling information on a second. | ||
+ | |||
+ | * IT-F4 combined file: [[https:// | ||
====== Using the data: ====== | ====== Using the data: ====== | ||
All ERDS collaborators have a responsibility to use the ERDS data responsibly, | All ERDS collaborators have a responsibility to use the ERDS data responsibly, | ||
+ | |||
+ | [[erds: | ||
+ | |||
+ | [[erds: |