| metadata_large_example {ata} | R Documentation |
ATA Package Large Example Item Metadata
Description
Sample data used to demonstrate automated test assembly.
Usage
metadata_large_example
Format
A data frame with 1096 rows and 44 variables:
- Item
Unique item identifier, alpha-numeric index code.
- Content
Content label, as factor identifying content "A" and "B".
- Content_A
Dummy code for content "A", 0 and 1 indicators.
- Content_B
Dummy code for content "B", 0 and 1 indicators.
- Content_C
Dummy code for content "C", 0 and 1 indicators.
- Content_D
Dummy code for content "D", 0 and 1 indicators.
- Content_E
Dummy code for content "E", 0 and 1 indicators.
- Content_F
Dummy code for content "F", 0 and 1 indicators.
- Content_G
Dummy code for content "G", 0 and 1 indicators.
- Content_H
Dummy code for content "H", 0 and 1 indicators.
- Content_I
Dummy code for content "I", 0 and 1 indicators.
- Content_J
Dummy code for content "J", 0 and 1 indicators.
- Content_K
Dummy code for content "K", 0 and 1 indicators.
- Content_L
Dummy code for content "L", 0 and 1 indicators.
- Content_M
Dummy code for content "M", 0 and 1 indicators.
- Content_N
Dummy code for content "N", 0 and 1 indicators.
- Content_O
Dummy code for content "O", 0 and 1 indicators.
- Content_P
Dummy code for content "P", 0 and 1 indicators.
- Content_Q
Dummy code for content "Q", 0 and 1 indicators.
- Content_R
Dummy code for content "R", 0 and 1 indicators.
- Content_S
Dummy code for content "S", 0 and 1 indicators.
- Content_T
Dummy code for content "T", 0 and 1 indicators.
- Content_U
Dummy code for content "U", 0 and 1 indicators.
- Content_V
Dummy code for content "V", 0 and 1 indicators.
- Content_W
Dummy code for content "W", 0 and 1 indicators.
- Content_X
Dummy code for content "X", 0 and 1 indicators.
- Content_Y
Dummy code for content "Y", 0 and 1 indicators.
- Content_Z
Dummy code for content "Z", 0 and 1 indicators.
- p
Item proportion correct responding.
- rpbis
Item-total point biserial correlation, rounded decimal correlation in range -1.00 to 1.00
- iSx
Item contribution to total composite standard deviation.
- Time
Observed median item response time, in seconds.
- Choices
Number of response choices in the multiple-choice question.
- Answer
Correct answer key. In the multiple-choice questions answer 1 = A, 2 = B, and so on.
- Skill
Formative insight skill classification.
- Skill_1
Formative skill insight dummy code for skill 1 (S1): Interpretive.
- Skill_2
Formative skill insight dummy code for skill 2 (S2): Factual.
- Skill_3
Formative skill insight dummy code for skill 3 (S3): Evaluative.
- IIF_m2
Item Response Theory (IRT) item information function value at a theta = -2.0.
- IIF_m1
Item Response Theory (IRT) item information function value at a theta = -1.0.
- IIF_0
Item Response Theory (IRT) item information function value at a theta = 0.0.
- IIF_1
Item Response Theory (IRT) item information function value at a theta = 1.0.
- IIF_2
Item Response Theory (IRT) item information function value at a theta = 2.0.
- Parent0
Passage based item set parent identification.