Search results
Main Effects. A “main effect” is the effect of one of your independent variables on the dependent variable, ignoring the effects of all other independent variables. To examine main effects, let’s look at a study in which 7-year-olds and 15-year-olds are given IQ tests, and then two weeks later, their teachers are told that some small ...
- 109KB
- 10
The purpose of this handout is to help you to find the language to describe interactions in writing. All of the examples below involve results with interactions. We assume that you understand the definitions of main effects and interactions and how to evaluate these effects. This handout focuses on describing 2x2 interactions.
- 220KB
- 6
- Graphing The Results of Factorial Experiments
- Main Effects
- Interactions
- Simple Effects
The results of factorial experiments with two independent variables can be graphed by representing one independent variable on the x-axis and representing the other by using different colored bars or lines. (The y-axis is always reserved for the dependent variable.) Figure 9.3 shows results for two hypothetical factorial experiments. The top panel ...
In factorial designs, there are three kinds of results that are of interest: main effects, interaction effects, and simple effects. A main effectis the effect of one independent variable on the dependent variable—averaging across the levels of the other independent variable. Thus there is one main effect to consider for each independent variable in...
There is an interactioneffect (or just “interaction”) when the effect of one independent variable depends on the level of another. Although this might seem complicated, you already have an intuitive understanding of interactions. As an everyday example, assume your friend asks you to go to a movie with another friend. Your response to her is, “well...
When researchers find an interaction it suggests that the main effects may be a bit misleading. Think of the example of a crossover interaction where introverts were found to perform better on a test of verbal test performance than extraverts when they had not ingested any caffeine, but extraverts were found to perform better than introverts when t...
Throughout this article, we have explored multiple examples that illustrate the impact of the mere exposure effect. Advertising: One example of the mere exposure effect can be seen in advertising. Companies often use repetitive exposure to their brand or product to increase familiarity and influence consumer behavior.
Oct 10, 2023 · Researchers have argued for and against recognizability as a cause of the mere exposure effect. For example, Moreland (1975) had subjects rate stimuli according to how recognizable and familiar stimuli were. Repetition led to an increase in recognition, greater confidence in recognition judgments, greater subjective familiarity, and greater liking.
Jan 8, 2024 · theme(legend.position = "top") Figure 10.2.1 10.2. 1: Example means showing a generally consistent main effect along with an interaction. There is a main effect of IV2: the level 1 means (red points and bar) are both lower than the level 2 means (aqua points and bar). There is also an interaction.
People also ask
How do you describe a main effect?
What is the difference between a main effect and an interaction?
How do you interpret the main effect in a sentence?
How many main effects are there in a study?
How do you interpret the main effect?
What is an example of a consistent main effect?
5. When the test phase began, participants had already been sitting in the chair wearing electrodes for approximately 80 minutes (e.g., 50 minutes for introduction, consent form, and electrode attachment; 8 minutes for resting baseline; 15 minutes for completion of the PANAS and the SAD; 2 minutes for exposure phase; 5-minute delay between exposure and test phase).
