We present a versatile scenario to introduce students to statistics: the test that spaghetti sticks only if sufficiently done. The statistical analyses can be performed at different levels of complexity and formal correctness, adapting it to the students' age.

There has been considerable recent interest in methods of determining sample size for qualitative research a priori, rather than through an adaptive approach such as saturation. Extending previous literature in this area, we identify four distinct approaches to determining sample size in this way: rules of thumb, conceptual models, numerical…

As research on mediation has grown, so too has interest in identifying ways to assess the size of indirect effects in a mediation analysis. One such estimate -- the ratio of the indirect effect to the total effect (P[subscript M]) -- was tested in a sample of 21,297 children from the Early Childhood Developmental Study. Results showed that the two…

Humans possess an invaluable ability of self-expression that extends into visual, literary, musical, and many other fields of creation. More than any other profession, artists are in close contact with this subdomain of creativity. Probably one of the most intriguing aspects of creativity is its negative correlation with the availability of…

Propensity and prognostic score methods are two statistical techniques used to correct for the selection bias in nonexperimental studies. Recently, the joint use of propensity and prognostic scores (i.e., two-score methods) has been proposed to improve the performance of adjustments using propensity or prognostic scores alone for bias reduction.…

School principals are tasked with a daunting number of responsibilities, all of which must culminate in increased student achievement. The complexity of these responsibilities have left school leaders overwhelmed, resulting in diminished confidence and potentially substandard job performance. This study addressed the problem that many school…

The present study examined the activation of imaginal information on true and false memories. We asked whether forming mental images would lead to increases in true and false memories relative to a control group that did not form images. Participants in both groups studied 288 unrelated concrete objects, in which some of the objects were presented…

To address the gap in locally driven mental health capacity strengthening initiatives in the occupied Palestinian territory (oPt), researchers from Birzeit University (BZU) and King's College London (KCL) developed a unique short course focusing on the intersection between methods, mental health, and conflict. The course was delivered in the West…

The desire to support student learning and professional development, in combination with accreditation requirements, necessitates the need to evaluate the learning environment of educational programs. The Health Education Learning Environment Survey (HELES) is a recently-developed global measure of the learning environment for health professions…

Purpose: The purpose of the paper is to discuss the "Q-Step in the Community" programme, part of the Q-Step Centre based in the Sociology Department at Manchester Metropolitan University, designed to help address the skills gap in quantitative methods (QM) that is evident across parts of the UK higher-education sector. "Q-Step in…

We present an aggregation scheme that increases power in randomized controlled trials and quasi-experiments when the intervention possesses a robust and well-articulated theory of change. Intervention studies using longitudinal data often include multiple observations on individuals, some of which may be more likely to manifest a treatment effect…

Objective: After the discontinuation of School Health Policies and Practices Study (SHPPS) in 2016, the US Centers for Disease Control and Prevention (CDC) began exploring innovative ways to gather school health information using existing surveillance systems. School Health Profiles (Profiles) is a school-based system of surveys that monitors…

Research has shown that intrapersonal, interpersonal, and stress factors are associated with development in marital satisfaction. However, the unique contributions of early predictors and changes in these factors to the development of marital satisfaction have been overlooked. Based on data from 268 Chinese newlywed couples (M[subscript age] =…

Objective: Health is an important factor in college student success yet is not as well understood in two-year colleges as it is in traditional, four-year institutions. This systematic literature review aimed to determine the health topics that have been studied in community colleges and what data sources have been used. Additionally, this paper…

This direct replication study compared the use of dichotomized likelihood ratios and interval likelihood ratios, derived using a prior sample of students, for predicting math risk in middle school. Data from the prior year state test and the Measures of Academic Progress were analyzed to evaluate differences in the efficiency and diagnostic…