# Manipulating IVs

## Lecture Slides: Manipulating Independent Variables

This  lecture introduces students to several different ways of manipulating independent variables. Some techniques covered include: mock Facebook profiles, priming, having participants count money, and viewing cute pictures. The goal of this lecture is to get students to see a variety of ways that researchers can manipulate IVs. Each example provides the citation for the […]

## Lecture Slides: Pie Taste Test (MultiGroup / Repeated-Measures Design Demonstration)

In this demonstration/activity (with PowerPoint slides) four student volunteers have the opportunity to provide taste ratings for several types of pie.  Instructors would need to provide plates, napkins, utensils, and the 4 types of pie. Type of pie can obviously vary, but students seem to be more engaged when there is an obvious “cheap” kind

## Lecture Slides: The Pepsi Challenge (Factorial Design Demonstration)

In this demonstration/activity (with PowerPoint slides) eight student volunteers have the opportunity to provide taste ratings for soda.  Instructors would need to provide cups and soda (usually a 16 oz bottle of each type of soda is enough). Type of soda can vary, but students seem to like the Pepsi vs. Coke dynamic. Another fun

## Lecture Slides: Arousal and Attraction (Two-Group Design Demonstration)

In this demonstration/activity (with PowerPoint slides) students are randomly assigned to a high or low arousal group based on the last digit of their social security number. Those in high arousal condition believe they will give a short speech on a randomly selected topic. Those in low arousal condition believe they will merely listen a

## Lecture Slides: Listen to the Music (Mixed Design Demonstration)

In this activity all of the students in class have the opportunity to listen to five different songs,and provide ratings of how energized they feel after each song. Instructors would need to insert the five music clips into the PowerPoint (details provided on the slide below). For the between-subjects variable, students are randomly assigned to

## Lecture Slides: Something You Will Like (Multigroup Design Demonstration)

In this demonstration/activity (with PowerPoint slides) students are randomly assigned to one of three groups. Those in Group 1 are the picture only condition and simply view the pictures. Those in Group 2 eat cookies while looking at the pictures. Those in Group 3 eat candy while looking at the pictures. The Instructor would need