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Example of a Factorial Design
An experiment by Schnall and colleagues on disgust and moral judgments serves as a key example of a factorial design because it includes more than one independent variable. To examine a complex psychological phenomenon, the researchers investigated the impact of two distinct independent variables—the manipulated physical cleanliness of a testing room (clean versus messy) and the measured participant variable of private body consciousness—on the dependent variable of how harshly participants judged moral transgressions. Because the study goes beyond a simple one-variable question and incorporates multiple independent variables, it typifies a factorial design.
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Research Methods in Psychology - 4th American Edition @ KPU
Related
Factorial Design Notation
Main Effect
Example of a Factorial Design Table
Between-Subjects Factorial Design
Within-Subjects Factorial Design
Mixed Factorial Design
Non-Experimental Factorial Design
Graphing Factorial Experiments
Factorial ANOVA
Example of a Non-Manipulated Independent Variable: Private Body Consciousness
Interaction Effect
Example of a Factorial Design
Example of a Factorial Design
What is the defining characteristic of a factorial design?
In a factorial design, researchers evaluate multiple independent variables by testing each one in separate, isolated conditions rather than combining them.
A social psychologist is designing an experiment to study how room temperature (Cold or Warm) and group size (Alone, in a Pair, or in a Small Group) influence social anxiety. Match each component of the study to its correct description within this factorial design.
A methodology review board is critiquing several proposed study designs for their ability to evaluate the complex joint effects of factors: Room Temperature and Task Difficulty. Rank the following proposals from the least robust to the most robust strategy for achieving a complete evaluation of all possible factor combinations.
A researcher is formulating a factorial design to study how Social Support (Present vs. Absent) and Stress Level (High vs. Low) influence physical health. Arrange the following steps in the correct logical sequence to construct the complete experimental architecture for this factorial approach.
A cognitive psychologist is designing a study to investigate how Study Environment (Noisy vs. Quiet) and Study Method (Spacing vs. Cramming) influence exam performance. If the researcher decides to employ a factorial design, what does this imply about the structure of the experimental conditions?
A social psychologist is designing a study to test how Room Temperature (Cold, Room Temp, Hot) and Task Type (Mental, Physical) influence irritability. If the researcher uses a full factorial design to ensure every level of temperature is combined with every level of task type, the study will consist of _____ unique experimental conditions.
In a factorial design, every level of one independent variable is systematically combined with every level of the other independent variables, such that each unique combination of these levels forms a distinct _____ within the experiment.
In a study investigating the effects of participant major (psychology vs. nutrition) and food type (cookie vs. hamburger) using a factorial design, a researcher must structure the study with exactly distinct conditions because the design requires combining every level of the major factor with every level of the food type factor.
A researcher is planning a study with multiple independent variables. Match each design or analysis decision to the correct methodological evaluation or justification.
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In the experiment by Schnall and colleagues on disgust and moral judgments, which two independent variables were investigated to create a factorial design?
In the experiment by Schnall and colleagues investigating the relationship between environmental disgust and moral behavior, match each element of the study to its respective role in the research structure.
If a researcher replicates the experiment by Schnall and colleagues but replaces the measured participant variable (private body consciousness) with a second manipulated variable (such as the presence of a distinct odor), the study would no longer be considered a factorial design.
In the experiment by Schnall and colleagues, a factorial design was used to investigate moral judgments. Arrange the following steps in the logical order of analysis, starting from the identification of the single outcome and moving toward the analysis of the combined variables.
You are developing a new research protocol that follows the structural logic of Schnall and colleagues' experiment on disgust and moral judgments. Your goal is to investigate how a physical environment and a participant's internal trait combine to influence social behavior. Arrange the following steps in the logical sequence required to construct this multi-variable research design.
In the experiment by Schnall and colleagues on disgust and moral judgments, private body consciousness was the dependent variable.
In the experiment by Schnall and colleagues on disgust and moral judgments, researchers investigated how the physical cleanliness of a testing room and a participant's private body consciousness affect moral judgments. Why does the inclusion of these two specific variables classify this study as a factorial design?
In evaluating the methodological rigor of the Schnall et al. experiment, a researcher might argue that a single-factor study would fail to account for how internal and external factors interact. To address this complexity, the researchers employed a(n) _____ design by including both physical cleanliness and private body consciousness as independent variables.
The Schnall et al. experiment on disgust and moral judgments contains several distinct methodological components. Match each component on the left to the role it plays in the factorial design on the right.
A student concludes that the Schnall et al. factorial design proves that having high private body consciousness causes people to make harsher moral judgments. The most accurate evaluation of this conclusion is that it is _____, because private body consciousness was a measured participant variable rather than one that was randomly assigned to participants, which prevents ruling out third-variable explanations.