Computerized Adaptive Testing for Ipsative Tests with Multidimensional Pairwise-Comparison Items: Algorithm Development and Applications.

A computerized adaptive testing (CAT) solution for tests with multidimensional pairwise-comparison (MPC) items, aiming to measure career interest, value, and personality, is rare. This paper proposes new item selection and exposure control methods for CAT with dichotomous and polytomous MPC items and present simulation study results. The results show that the procedures are effective in selecting items and controlling within-person statement exposure with no loss of efficiency.

An Empirical Q-Matrix Validation Method for the Polytomous G-DINA Model.

A number of empirically based Q-matrix validation methods are available in the literature, all of which were developed for cognitive diagnosis models (CDMs) involving dichotomous attributes. However, in many applications, it is more instructionally relevant to classify students into more than two categories (e.g.

A new item response theory model for rater centrality using a hierarchical rater model approach.

Rater centrality, in which raters overuse middle scores for rating, is a common rater error which can affect test scores and subsequent decisions. Past studies on rater errors have focused on rater severity and inconsistency, neglecting rater centrality. This study proposes a new model within the hierarchical rater model framework to explicitly specify and directly estimate rater centrality in addition to rater severity and inconsistency.

Assessment of Differential Statement Functioning in Ipsative Tests With Multidimensional Forced-Choice Items.

Ipsative tests with multidimensional forced-choice (MFC) items have been widely used to assess career interest, values, and personality to prevent response biases. Recently, there has been a surge of interest in developing item response theory models for MFC items. In reality, a statement in an MFC item may have different utilities for different groups, which is referred to as differential statement functioning (DSF).

Assessing Differential Statement Functioning in Polytomous Multidimensional Pairwise Comparison Items.

Multidimensional pairwise comparison (MPC) items have been widely used to assess career interest, value and personality to avoid response bias in educational sectors. In reality, a statement in an MPC item may have different utilities for different groups, which is referred to as differential statement functioning (DSF). Few studies have been investigated DSF assessment.

Measuring dynamic goals for marriage: Development and validation of the Marital Goal Scale using Rasch modeling.

Both the dynamic goal theory of marital satisfaction and the suffocation model of marriage argue that whether people are satisfied with their marriage largely depends on their marital goals. However, the lack of a validated measure has greatly limited empirical investigations about marital goals. The current study developed the Marital Goal Scale (MGS) using Rasch modeling.

Item Response Theory Modeling for Examinee-selected Items with Rater Effect.

Some large-scale testing requires examinees to select and answer a fixed number of items from given items (e.g., select one out of the three items).

Multilevel Modeling of Cognitive Diagnostic Assessment: The Multilevel DINA Example.

Many multilevel linear and item response theory models have been developed to account for multilevel data structures. However, most existing cognitive diagnostic models (CDMs) are unilevel in nature and become inapplicable when data have a multilevel structure. In this study, using the log-linear CDM as the item-level model, multilevel CDMs were developed based on the latent continuous variable approach and the multivariate Bernoulli distribution approach.

Item Response Theory Models for Ipsative Tests With Multidimensional Pairwise Comparison Items.

There is re-emerging interest in adopting forced-choice items to address the issue of response bias in Likert-type items for noncognitive latent traits. Multidimensional pairwise comparison (MPC) items are commonly used forced-choice items. However, few studies have been aimed at developing item response theory models for MPC items owing to the challenges associated with ipsativity.

A Multidimensional and Multilevel Extension of a Random-Effect Approach to Subjective Judgment in Rating Scales.

In responding to rating scale items, respondents may hold different perspectives on the given categories. The random-effect rating scale model (RERSM), developed to account for variations in the category thresholds across respondents, is unidimensional and unilevel. It becomes statistically inefficient when multiple unidimensional tests have to be analyzed and inapplicable when data have a multilevel structure (e.

[Colonic dripping with Taihuang liquid for treatment of neonatal hyperbilirubinemia].

Objective: To explore the clinical effects of colonic dripping with Taihuang liquid (THL) in treating neonatal hyperbilirubinemia (HBE).

Methods: One hundred and thirty-eight neonates with HBE were randomly assigned to two groups. Conventional treatment and nursing were given to both groups, and THL was given additionally to the observation group by colonic dripping.

[In vivo/in vitro evaluation of Kangfuxin colon targeting capsules].

Objective: To evaluate the release in fixed position of pH-dependent and enzyme-dependent Kangfuxin colon targeting capsules in vivo and in vitro.

Method: The dissolution was tested in vitro and X-ray radiography was used for the evaluation in vivo.

Result: After two hours pH-dependent colon targeting in man-made colon fluid, medicine release in fixed position on the whole, colon loc-release.

[Preparation of kangfuxin colon targeting micro-pellets].

Objective: To prepare coated micro-pellets of pH-dependent and enzyme-dependent kangfuxin colon targeting delivery system, to make them go to colon, then release, educe partial effect.

Method: We eploy pan-pill to prepare simple pellets, and prepare tunicatus pellets with fluidized bed coating. We investigated the preparation and parameter of pellets, so, we bolting the best shaping and tunicatus artwork.

[Preparation and in vivo evaluation of pH and time dependent Yuchangning tablets for colon-specific delivery].

Objective: Taking Chinese compound medicine Yuchangning as a research model, prepared the pH and time dependent Yuchangning tablets for colon-specific delivery (PT-YT-CSD), and evaluated the releasing property in vitro.

Method: The coating prescription is filtered by the release extent of matrine and oxymatrine in vitro and the wicking rate of the tablet, which including the category and proportion of film forming agent and porogen, the sort and dosage of fluidizing agent, the increment of weight after coating and so on. The releasing property of the preparation is evaluated by the dissolution tests in vitro through measuring the content of matrine and oxymatrine content.