PRA results

On this page, you will find the following:

1. PRA (interpreting mathematical results) Construct Map,
2. Items & Scoring Guides,
3. WrightMaps,
4. Thresfold Estimates,
5. A link to Item Analysis (from ConQuest), and

1. PRA Construct Map

2. PRA Items & Scoring Guides on BASS

• Brake.1a_MC & 2a_MC
• Brake.2c_MC
• Brake.4a_NU & 4b_MC
• Brake.4b_OE
• Water.1_MCOE
• Word.1_MC
• Word.4a_OE & 4b_OE

3. WrightMaps

Calibration stats from calibration run #2

• 815 cases
• 10 scorable “units”
• WLE Separation Reliability: 0.192
• EAP/PV Reliability: 0.47
• Weighted MNSQ: 0.86 - 1.13

4. Threshold difficulty estimates

item	L2	L3
Brake.01a_M..	-2.62	-0.47
Brake.02a_M..	-1.27	0.35
Brake.02c_M..	0.33	1.28
Brake.04a_N..	1.04	1.99
Brake.04b_M..	-0.16	1.31
Brake.04b_O..	1.02	1.66
Water.01_MC..	-1.65	1.54
Word.01_MC	-0.53	0.01
Word.04a_OE	0.17	1.10
Word.04b_OE	0.82	1.48

5. Item Analysis

• Link to Item Analysis (ConQuest output)