The high cost of textbooks is of concern not only to college students but also to society as a whole. Open textbooks promise the same educational benefits as traditional textbooks; however, their efficacy remains largely untested. We report on one community college's adoption of a free online psychology textbook. During the fall semester, 2011, 690 students used this book. Compared to students using a traditional text in the spring of 2011, students who used the free online textbook scored higher on departmental final exams, had higher GPAs in the class and higher retention rates.

Prior to coronary angiography, 150 men were assessed for Type A behavior using the structured interview and two questionnaire measures. The results show no relationship between Type A behavior and extent of coronary artery disease (CAD). A second finding is that the number of self-references (I, me, my) derived from speech in the structured interview correlated positively with the number of previous myocardial infarctions and the extent of CAD; self-references correlated negatively with time on the treadmill and catheterization ejection fraction. Multiple regression analyses show self-references to remain a significant correlate of extent of disease when controlled for age, blood pressure, cholesterol, and Type A behavior.