Research increasingly suggests that subjective cognitive decline (SCD) in older adults, in the absence of objective cognitive dysfunction or depression, may be a harbinger of non-normative cognitive decline and eventual progression to dementia. Little is known, however, about the key features of self-report measures currently used to assess SCD. The Subjective Cognitive Decline Initiative (SCD-I) Working Group is an international consortium established to develop a conceptual framework and research criteria for SCD (Jessen et al., 2014, Alzheimers Dement 10, 844–852). In the current study we systematically compared cognitive self-report items used by 19 SCD-I Working Group studies, representing 8 countries and 5 languages. We identified 34 self-report measures comprising 640 cognitive self-report items. There was little overlap among measures—approximately 75% of measures were used by only one study. Wide variation existed in response options and item content. Items pertaining to the memory domain predominated, accounting for about 60% of items surveyed, followed by executive function and attention, with 16% and 11% of the items, respectively. Items relating to memory for the names of people and the placement of common objects were represented on the greatest percentage of measures (56% each). Working group members reported that instrument selection decisions were often based on practical considerations beyond the study of SCD specifically, such as availability and brevity of measures. Results document the heterogeneity of approaches across studies to the emerging construct of SCD. We offer preliminary recommendations for instrument selection and future research directions including identifying items and measure formats associated with important clinical outcomes.

Peer tutoring is an effective method of improving undergraduate students’ academic performance, especially for those at-risk for poor grades. Peer tutoring has seldom been explored in undergraduate statistics, a difficult but required course for many college majors. The current study investigated the benefits of peer tutoring for 180 demographically-diverse undergraduate students enrolled in an introductory psychology statistics course at an urban public university. We investigated the predictive value of attendance at peer tutoring sessions for in-class examination performance. We also studied the role of help-seeking and self-efficacy. Results indicated that peer tutoring attendance was associated with higher grades for in-class examination among at-risk students. Help-seeking and self-efficacy were not associated with in-class examination scores. Peer tutors can help at-risk students increase scores in statistics courses. Departments offering undergraduate introductory statistics courses should allocate resources to allow for funding of peer tutoring programs.

Mathematical competency is related to performance in introductory statistics courses and may be a roadblock to successful course completion. We developed a new measure (Math Assessment for College Students, MACS) of basic mathematics skills that improves upon measures previously used in undergraduate settings. The MACS is freely available and contains items not typically included on standardized measures of mathematical ability. We administered the 44-item MACS to 414 undergraduate psychology statistics students, and used a multiple correspondence analysis to eliminate 14 items, resulting in a 30-item measure with strong psychometric properties. MACS scores showed statistically significant moderate correlations with a commonly used standardized measure of basic mathematics skills and with overall statistics course grade. We discuss the utility of the MACS and how the MACS may help course instructors identify areas of mathematical deficiency that require remediation. First published November 2018 at Statistics Education Research Journal Archives

Takotsubo cardiomyopathy (TCM), also known as apical ballooning syndrome or stress-induced cardiomyopathy, typically presents with features of the acute coronary syndrome. It is characterized by left ventricular apical akinesis and transient systolic dysfunction in the absence of obstructive coronary artery disease. Although its pathogenesis remains unclear, it is thought to be a catecholamine surge that is produced following intense physical or emotional stress. We present a case of TCM in a patient with small bowel obstruction (SBO), which is a rare trigger.

Mycobacterium chimaera is a slow-growing nontuberculous mycobacterium. It has been identified as a contaminant during open-heart surgery. It contaminates water in heater-cooler units that then become aerosolized, contaminating the surgical field. We report a 56-year-old male who presented with culture-negative endocarditis six years after his initial open-heart surgery.