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A number of libraries are required. This is becasue we will format some objects with our own R markdown.
##
## Attaching package: 'kableExtra'## The following object is masked from 'package:dplyr':
##
## group_rowsThis is an example of implementation of Item Review Sheets using RMarkdown and conquestr. We will use the default system file, analysis, and plots from the conquestr library. First we can read in the system file (output by ACER ConQuest). Item analysis (itanal) and iteration history are stored in the system file.
## no system file provided, loading the example system file insteadOutput from plot files are stored separately in Rout files.
## no rout file provided, loading the example rout file insteadThere are also helper functions to plot iteration history and Rout files.
Summary Statistics:
| Percent Missing | N | Mean | SD | Variance | Skew | Kurtosis | Standard error of mean | Standard error of measurement | Alpha | |
|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 999 | 8.44 | 2.4 | 5.78 | -0.6 | -0.2 | 0.08 | 1.43 | 0.64 |
Visual summary of convergence
| x |
|---|
| item:1 (item one) |
| Category | Score | Count | Percent | Pt Bis | Pt Bis t stat. | Pt Bis sig. | Ability mean (D1) | Ability SD (D1) |
|---|---|---|---|---|---|---|---|---|
| M | 0 | 6 | 0.60 | -0.11 | -3.40 | 0.00 | -0.98 | 1.01 |
| a | 1 | 644 | 64.46 | 0.46 | 16.14 | 0.00 | 0.33 | 0.82 |
| b | 0 | 23 | 2.30 | -0.08 | -2.68 | 0.01 | -0.54 | 1.00 |
| c | 0 | 47 | 4.70 | -0.20 | -6.40 | 0.00 | -0.75 | 0.79 |
| d | 0 | 104 | 10.41 | -0.24 | -7.76 | 0.00 | -0.68 | 0.70 |
| e | 0 | 175 | 17.52 | -0.22 | -6.97 | 0.00 | -0.47 | 0.71 |
| x | |
|---|---|
| item-total | 0.61 |
| item-rest | 0.46 |
| obs_mean | 0.64 |
| exp_mean | 0.65 |
| adj_mean | 0.65 |
| delta_dot | -0.70 |
Item 1 ICC:
Inserting red text for demo purposes.
These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
Health stats visible at Monitor.