Messages

31

Questions and Answers / Re: kidmap command in Mac version

« on: April 09, 2019, 08:21:29 AM »

There is a bug in ConQuest Mac that prevents it drawing kidmaps.

Users can contact sales@acer.org with their current key if they need support to fix this.

The bug will be fixed in the next public release > 4.15

32

General Discussion / MOVED: use full version

« on: April 07, 2019, 11:13:19 PM »

This topic has been moved to Questions and Answers.

https://conquest-forums.acer.edu.au/index.php?topic=1283.0

33

General Discussion / MOVED: Error Message

« on: April 07, 2019, 11:13:05 PM »

This topic has been moved to Questions and Answers.

https://conquest-forums.acer.edu.au/index.php?topic=1288.0

34

Questions and Answers / Re: softkey

« on: April 07, 2019, 06:18:09 AM »

You only need to set your licence key once. You can only use a key once - if you set the key, then try to re-use it, ConQuest will report an error.

I think you are using the mac version, right? Are you running conquest from the dmg installer? If you are, check out the installation instructions - you should drag the ConQuest folder to your Applications folder.

35

Questions and Answers / Re: kidmap command in Mac version

« on: April 07, 2019, 06:15:46 AM »

yes, kidmap is available for the mac version.

what happens when you try and run kidmap with one of the examples in the notes and tutorials? e.g.,

https://www.acer.org/files/Conquest-Tutorial-1-RASCHModelMultipleChoiceTest.pdf

36

Questions and Answers / Re: Error Message

« on: April 07, 2019, 06:13:10 AM »

You'll need t provide a bit more information for us to help.

If you require specific advice about a model, please upload your data and syntax, or alternatively provide a minimum working example:

https://conquest-forums.acer.edu.au/index.php?topic=1239.0

37

Questions and Answers / Re: item parameter

« on: March 31, 2019, 02:33:38 AM »

if you require specific advice about a model, please upload your data and syntax, or alternatively provide a minimum working example:

https://conquest-forums.acer.edu.au/index.php?topic=1239.0

For a model to be identified, every response category for each item needs to have at least one valid response. Creating a frequency table for each item will show you how many responses are within each response category.

38

ConQuest News / conquestr: integrating ConQuest into R workflows

« on: March 29, 2019, 12:06:35 AM »

A new R library has been released that can be used to call ConQuest from within R, and read in ConQuest objects (ability estimates, item parameter estimates etc) to be used within R.

https://cran.r-project.org/package=conquestr

You will need a beta version of ConQuest to use this library. If you would like to try conquestr, register at the ACER Shop, and send an email to our customer support team:

https://shop.acer.edu.au/

You can find an example of how to use conquestr in the vignettes:

https://cran.r-project.org/web/packages/conquestr/vignettes/intro-to-conquestr.html

39

Questions and Answers / Re: use full version

« on: March 28, 2019, 09:23:28 PM »

The functionality of ACER ConQuest can be extended beyond 3000 cases and 100 items through provision by ACER, at its discretion, of an extended licence.

Application to ACER for an extended licence can be made in advance of the purchase of a standard licence or by users who already have a standard licence. To apply for an extended licence, please contact customer service at sales@acer.org.

40

Questions and Answers / Re: kidmap run error

« on: March 24, 2019, 07:12:33 AM »

Can you let us know what version you running?

Can you upload your data and syntax file, or provide a minimum working example?

https://conquest-forums.acer.edu.au/index.php?topic=1239.0

41

Questions and Answers / Re: Parameterization of the partial credit model

« on: March 11, 2019, 11:18:10 AM »

The item response model fitted by ACER ConQuest is the multidimensional random coefficients multinomial logit model (MRCMLM). The parametrisation is presented in:

Adams, R.J., Wilson, M.R., and Wang, W.C. 1997. The multidimensional random coefficients multinomial logit. Applied Psychological Measurement, 21, 1–24.

See, the section describing he response probability model.

If you are using integer scoring, you can see both the item deltas and thresholds by using the command `itanal`.

42

Questions and Answers / Re: multidimensional run error

« on: February 28, 2019, 08:08:32 AM »

contact our sales team with details of your licence key purchase, and they can provide you with access to a beta version.

sales@acer.org

43

Questions and Answers / Re: multidimensional run error

« on: February 26, 2019, 09:42:27 AM »

about the version, here is what I got after typing 'conquest' and return (I am running it on Mac):
ConQuest build: Oct 3 2017
Standard Version

Your error message is likely a version issue. I can get this model to run, but i am still concerned about identification. I attach the output i get.

you can type the command `about` at the command line to get the version details:

Code: [Select]

about;
On my machine, I am running the latest beta build and I get (please don't publish your key details - delete it from below):

< about;
Developed by
    Australian Council for Educational Research
    University of California, Berkeley

Your key: ...
Expires: ...

Professional Build:  Feb 22 2019
Version: 4.30.2

Programmers
    Ray Adams, Margaret Wu, Greg Macaskill, Sam Haldane, Xiao Xun Sun, Dan Cloney
 <

44

Questions and Answers / Re: multidimensional run error

« on: February 26, 2019, 12:44:58 AM »

Can you let us know what version of ConQuest you are running?

Can you upload your data and syntax file, or provide a minimum working example?

https://conquest-forums.acer.edu.au/index.php?topic=1239.0

In general, I wonder if this model is identified? With an item constraint, the difficulty of one (the last) item within each dimension is constrained to be the negative sum of the other items. With only one item, you cannot impose this constraint. If you combine dimension 1 and 2 into a single dimension, this will probably run fine. Alternatively you will need to consider a different design/importing a design.

45

ConQuest News / Re: Documentation

« on: February 25, 2019, 10:53:22 AM »

We do not plan on providing a separate printed ConQuest 3.0 manual. All functionality as described in the v2.0 manual still holds.  For the additional functionality of ConQuest 3.0, the ConQuest 2 manual is supplemented by the ACER ConQuest 3.0 command reference and the notes and tutorials available from: http://www.acer.edu.au/conquest/notes-tutorials

A ConQuest 5 manual is on the way.

Early versions will be available at http://conquestcommandref.netlify.com

Feedback and comments welcome.