We describe an easy-to-employ, hands-on demonstration using playing cards to illustrate the central limit theorem. This activity allows students to see how a collection of sample means drawn from a nonnormally distributed population will be normally distributed. Students who took part in the demonstration reported it to be helpful in understanding…

This article describes a 2-session laboratory project in which students develop, conduct, and attempt to validate an interview-based personality assessment. In Session 1, students learn about effective interview procedures and then design and pilot-test an interview to assess 4 personality traits (emotionality, activity level, sociability, and…

Internal and external validity are key concepts in understanding the scientific method and fostering critical thinking. This article describes a class demonstration of a "botched" experiment to teach validity to undergraduates. Psychology students (N = 75) completed assessments at the beginning of the semester, prior to and immediately following…

We describe a simple classroom activity that demonstrated the process of assessing predictive validity. We assessed changes in student understanding of the process, confidence in psychological testing, and enjoyment in participating in the exercise. Students who completed the activity performed better on a test question about validity and reported…

Discusses problems encountered in using the Matarazzo Checklist to rate students' interviewing skills with psychiatric patients. (RM)

We converted the Teacher Behaviors Checklist (TBC; Buskist, Sikorski, Buckley, & Saville, 2002) to an evaluative instrument to assess teaching by adding specific instructions and a Likert-type scale. Factor analysis of the modified TBC produced 2 subscales: caring and supportive and professional competency and communication skills. Further…

Describes a classroom activity, listing step-by-step directions, that demonstrates the unreliability of essay scoring. Explains that after the exercise the class discussion should address the problematic factors in scoring essays. Lists recommendations for improving reliability and validity of essay scoring. (CMK)

College students in an introductory psychology course constructed a personality test. They were then asked to administer the test to two students not enrolled in the course and to bring responses to class the following week, at which time they analyzed and discussed the results. (RM)

Presents a class activity, in which students take two tests, that requires minimal preparation and encourages discussion on important aspects of testing, such as testing bias. Describes the procedure. Includes the two tests and the answers. (CMK)

Evaluates the use of discrimination indexes (or item-total correlation) for examining the reliability of examinations. States this technique has drawbacks and may cause examination validity to be lower. Discusses the idea of discrimination power and why poor students may answer an item correctly. (CMK)

Provides an in-class activity that enables students in research methods to learn about survey design and multiple regression. Explains that the students developed questionnaires in order to generate five items, as set in a multiple regression equation, that would best predict a particular outcome. Discusses benefits and drawbacks. (CMK)

Describes a technique for demonstrating personality scale validation techniques to introductory psychology students. Claims that the technique promotes a better grasp of the principles of test validation. Results include better class discussion, written reports, and examination grades. Suggests that introducing practical applications before…

Utilizes the Psychology As Science (PAS) questionnaire to examine student's perceptions. PAS consists of a series of statements about Psychology followed by a strongly agree/disagree option. Reveals an overwhelming acceptance of psychology as a science among students. Includes a statistical breakdown of PAS statements and suggestions for future…