Quant_13B_problem_infoList: Arclength or information parameter list for 24 items from the...
In TestGardener: Information Analysis for Test and Rating Scale Data
Quant_13B_problem_infoList R Documentation
Arclength or information parameter list for 24 items from the quantitative
SweSAT subtest.
Description
The data are for 1000 examinees randomly selected from those who took the 2013
quantitative subtest of the SweSAT university entrance exam.
The questions are only the 24 math analysis questions, and each question has
four options.
The analysis results are after 10 cycles of alternating between estimating
surprisal curves and estimating percentile score index values.
The objects in list object Quant_13B_problem_infoList are required for plotting
results over the arc length or information domain rather the score index domain.
This domain is preferred because such plots are invariant with respect to changes
in the score index domain. It also has a metric structure so that differences
are comparable no matter where they fall within the information domain.
Usage
Quant_13B_problem_infoList
Format
A named list containing eight objects.
Value
The object Quant_13B_problem_parmList is a named list with these members:
- infoSurp:
The total length of the information domain measured in
M-bits, where M is the number of options for a question.
- Sfd:
The log derivative functional data object defining
a strictly increasing set of arc length values
corresponding to set of score index values.
- infoSurpvec:
A mesh of equally-spaced values of
indefinite integrals of sum of norms of surprisal derivatives.
- scopevec
The N arc length values corresponding to the N
estimated score index values assigned to N examinees.
- Qinfovec:
The arc length positions corresponding to the marker
percentages 5, 25, 50, 75 and 95.
- index:
A vector of score index values resulting from using
function monfd with equally spaced arc length values and
Sfd.info.
- Sdim:
The dimension of the over space containing the surprisal
pcurves.
TestGardener documentation built on Nov. 24, 2023, 5:08 p.m.
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| Quant_13B_problem_infoList | R Documentation |
Arclength or information parameter list for 24 items from the quantitative SweSAT subtest.
Description
The data are for 1000 examinees randomly selected from those who took the 2013
quantitative subtest of the SweSAT university entrance exam.
The questions are only the 24 math analysis questions, and each question has
four options.
The analysis results are after 10 cycles of alternating between estimating
surprisal curves and estimating percentile score index values.
The objects in list object Quant_13B_problem_infoList are required for plotting
results over the arc length or information domain rather the score index domain.
This domain is preferred because such plots are invariant with respect to changes
in the score index domain. It also has a metric structure so that differences
are comparable no matter where they fall within the information domain.
Usage
Quant_13B_problem_infoListFormat
A named list containing eight objects.
Value
The object Quant_13B_problem_parmList is a named list with these members:
- infoSurp:
The total length of the information domain measured in M-bits, where
Mis the number of options for a question.- Sfd:
The log derivative functional data object defining a strictly increasing set of arc length values corresponding to set of score index values.
- infoSurpvec:
A mesh of equally-spaced values of indefinite integrals of sum of norms of surprisal derivatives.
- scopevec
The N arc length values corresponding to the N estimated score index values assigned to N examinees.
- Qinfovec:
The arc length positions corresponding to the marker percentages 5, 25, 50, 75 and 95.
- index:
A vector of score index values resulting from using function
monfdwith equally spaced arc length values andSfd.info.- Sdim:
The dimension of the over space containing the surprisal pcurves.
R Package Documentation
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We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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