Examination of the Measurement Equivalence of the Functional Assessment in Acute Care MCAT (FAMCAT) Mobility Item Bank Using Differential Item Functioning Analyses.

Objective: To assess differential item functioning (DIF) in an item pool measuring the mobility of hospitalized patients across educational, age, and sex groups.

Design: Measurement evaluation cohort study. Content experts generated DIF hypotheses to guide the interpretation.

Evaluation of the measurement properties of the Perceived Stress Scale (PSS) in Hispanic caregivers to patients with Alzheimer's disease and related disorders.

Objectives: The Perceived Stress Scale (PSS) is the most widely used measure of perceived stress; however, minimal psychometric evaluation has been performed among Hispanic respondents, and even less among Hispanic caregivers to persons with Alzheimer's disease and related disorders (ADRDs).

Design: Secondary data analysis.

Setting: New York City, NY, USA.

Evaluation of measurement equivalence of the Family Satisfaction with the End-of-Life Care (FAMCARE): Tests of differential item functioning between Hispanic and non-Hispanic White caregivers.

Objective: Although the psychometric properties of the Family Satisfaction with End-of-Life Care measure have been examined in diverse settings internationally; little evidence exists regarding measurement equivalence in Hispanic caregivers. The aim was to examine the psychometric properties of a short-form of the FAMCARE in Hispanics using latent variable models and place information on differential item functioning (DIF) in an existing family satisfaction item bank.

Method: The graded form of the item response theory model was used for the analyses of DIF; sensitivity analyses were performed using a latent variable logistic regression approach.

Methodological issues in measuring subjective well-being and quality-of-life: Applications to assessment of affect in older, chronically and cognitively impaired, ethnically diverse groups using the Feeling Tone Questionnaire.

Quality of life assessment includes measurement of positive affect. Methods artifacts associated with positively and negatively worded items can manifest as negative items loading on a second factor, despite the conceptual view that the items are measuring one underlying latent construct. Negatively worded items may elicit biased responses.

Measurement Equivalence of the Patient Reported Outcomes Measurement Information System (PROMIS) Pain Interference Short Form Items: Application to Ethnically Diverse Cancer and Palliative Care Populations.

Unlabelled: Reducing the response burden of standardized pain measures is desirable, particularly for individuals who are frail or live with chronic illness, e.g., those suffering from cancer and those in palliative care.

Differential item functioning magnitude and impact measures from item response theory models.

Measures of magnitude and impact of differential item functioning (DIF) at the item and scale level, respectively are presented and reviewed in this paper. Most measures are based on item response theory models. Magnitude refers to item level effect sizes, whereas impact refers to differences between groups at the scale score level.

Measurement Equivalence of the Patient Reported Outcomes Measurement Information System (PROMIS) Anxiety Short Forms in Ethnically Diverse Groups.

Unlabelled: This is the first study of the measurement equivalence of the Patient Reported Outcomes Measurement Information System (PROMIS) Anxiety short forms in a large ethnically diverse sample. The psychometric properties and differential item functioning (DIF) were examined across different racial/ethnic, educational, age, gender and language groups.

Methods: These data are from individuals selected from cancer registries in the United States.

Psychometric Properties and Performance of the Patient Reported Outcomes Measurement Information System (PROMIS) Depression Short Forms in Ethnically Diverse Groups.

Unlabelled: Short form measures from the Patient Reported Outcomes Measurement Information System (PROMIS) are used widely. The present study was among the first to examine differential item functioning (DIF) in the PROMIS Depression short form scales in a sample of over 5000 racially/ethnically diverse patients with cancer. DIF analyses were conducted across different racial/ethnic, educational, age, gender and language groups.

Measurement Equivalence of the Patient Reported Outcomes Measurement Information System (PROMIS) Applied Cognition - General Concerns, Short Forms in Ethnically Diverse Groups.

Aims: The goals of these analyses were to examine the psychometric properties and measurement equivalence of a self-reported cognition measure, the Patient Reported Outcome Measurement Information System (PROMIS) Applied Cognition - General Concerns short form. These items are also found in the PROMIS Cognitive Function (version 2) item bank. This scale consists of eight items related to subjective cognitive concerns.

Evaluation of measurement equivalence of the Family Satisfaction with the End-of-Life Care in an ethnically diverse cohort: tests of differential item functioning.

Background: The Family Satisfaction with End-of-Life Care is an internationally used measure of satisfaction with cancer care. However, the Family Satisfaction with End-of-Life Care has not been studied for equivalence of item endorsement across different socio-demographic groups using differential item functioning.

Aims: The aims of this secondary data analysis were (1) to examine potential differential item functioning in the family satisfaction item set with respect to type of caregiver, race, and patient age, gender, and education and (2) to provide parameters and documentation of differential item functioning for an item bank.