Developing self-report Likert scales is an essential part of modern psychology. However, it is
hard for psychologists to remain apprised of best practices as methodological developments …

A common way to form scores from multiple-item scales is to sum responses of all items.
Though sum scoring is often contrasted with factor analysis as a competing method, we …

Background Waning immunity occurs in patients who have recovered from Coronavirus
Disease 2019 (COVID-19). However, it remains unclear whether true re-infection occurs …

One pervasive educational issue is the national underrepresentation of Black and Hispanic
students in gifted education. Virtually every school district is grappling with having too few …

Objective: Citation and download data pertaining to the 2009 AACN consensus statement
on validity assessment indicated that the topic maintained high interest in subsequent years …

Across all sciences, the quality of measurements is important. Survey measurements are
only appropriate for use when researchers have validity evidence within their particular …

K–12 gifted and talented programs have struggled with racial, ethnic, socioeconomic, native
language, and disability inequity since their inception. This inequity has been well …

The advent and proliferation of digital technologies purport to increase the innovation
potential of most organizations. However, approximately 90% of new ideas never convert to …

We review contemporary best practice for developing and validating measures of constructs
in the organizational sciences. The three basic steps in scale development are:(a) construct …

The verity of results about a psychological construct hinges on the validity of its
measurement, making construct validation a fundamental methodology to the scientific …