testing: now what a basic introduction to testing
TRANSCRIPT
![Page 1: Testing: Now what A basic introduction to testing](https://reader035.vdocuments.net/reader035/viewer/2022062803/56649f4a5503460f94c6c22b/html5/thumbnails/1.jpg)
Testing: Now what
A basic introduction to testing
![Page 2: Testing: Now what A basic introduction to testing](https://reader035.vdocuments.net/reader035/viewer/2022062803/56649f4a5503460f94c6c22b/html5/thumbnails/2.jpg)
Today’s events
1. Basic tips and tricks (Getting the data ready)2. Hands-on: Reliability 13. Hands-on: Looking at test item performance4. Hands-on: Reliability and more5. Alternatives to classical test theory (IRT)
![Page 3: Testing: Now what A basic introduction to testing](https://reader035.vdocuments.net/reader035/viewer/2022062803/56649f4a5503460f94c6c22b/html5/thumbnails/3.jpg)
We won’t cover
• Research functions (t-tests, ANOVA)• Validity designs (much)• Mastery or achievement tests (specifically)
![Page 4: Testing: Now what A basic introduction to testing](https://reader035.vdocuments.net/reader035/viewer/2022062803/56649f4a5503460f94c6c22b/html5/thumbnails/4.jpg)
![Page 5: Testing: Now what A basic introduction to testing](https://reader035.vdocuments.net/reader035/viewer/2022062803/56649f4a5503460f94c6c22b/html5/thumbnails/5.jpg)
![Page 6: Testing: Now what A basic introduction to testing](https://reader035.vdocuments.net/reader035/viewer/2022062803/56649f4a5503460f94c6c22b/html5/thumbnails/6.jpg)
Some big words
• Discrete point• Polytomous• Norm/Criterion-referenced tests• Unidimensional• Reliability • Validity
![Page 7: Testing: Now what A basic introduction to testing](https://reader035.vdocuments.net/reader035/viewer/2022062803/56649f4a5503460f94c6c22b/html5/thumbnails/7.jpg)
Other words we (might) use . . .
• mean• variance• standard deviation
![Page 8: Testing: Now what A basic introduction to testing](https://reader035.vdocuments.net/reader035/viewer/2022062803/56649f4a5503460f94c6c22b/html5/thumbnails/8.jpg)
Today’s tests focus on
• Reliability• Norm-referenced• Discrete point• Unidimensionality
![Page 9: Testing: Now what A basic introduction to testing](https://reader035.vdocuments.net/reader035/viewer/2022062803/56649f4a5503460f94c6c22b/html5/thumbnails/9.jpg)
Getting data
![Page 10: Testing: Now what A basic introduction to testing](https://reader035.vdocuments.net/reader035/viewer/2022062803/56649f4a5503460f94c6c22b/html5/thumbnails/10.jpg)
Alternatives?
![Page 11: Testing: Now what A basic introduction to testing](https://reader035.vdocuments.net/reader035/viewer/2022062803/56649f4a5503460f94c6c22b/html5/thumbnails/11.jpg)
These change quickly!
![Page 12: Testing: Now what A basic introduction to testing](https://reader035.vdocuments.net/reader035/viewer/2022062803/56649f4a5503460f94c6c22b/html5/thumbnails/12.jpg)
Caution
• Use as many items as you NEED• Don’t be constrained by the size of your
answer sheet
![Page 13: Testing: Now what A basic introduction to testing](https://reader035.vdocuments.net/reader035/viewer/2022062803/56649f4a5503460f94c6c22b/html5/thumbnails/13.jpg)
Cleaning test data
• Remove R1C1 formatting• Show hidden columns/rows• Remove empty or unnecessary row/columns• Decide what to do with empty cells
Go to “Cleaning Test Data” file on Excel!
![Page 14: Testing: Now what A basic introduction to testing](https://reader035.vdocuments.net/reader035/viewer/2022062803/56649f4a5503460f94c6c22b/html5/thumbnails/14.jpg)
To share data, you can make . . .
• a frequency table for scores• a histogram• a scalogram (you’ll see!)
Go to “Frequency and Histogram practice” file on Excel!
![Page 15: Testing: Now what A basic introduction to testing](https://reader035.vdocuments.net/reader035/viewer/2022062803/56649f4a5503460f94c6c22b/html5/thumbnails/15.jpg)
Now you can . . .
• Clean your data for analysis• Manipulate your data• Make simple charts for sharing