Non-Experimental Factorial Design
A non-experimental factorial design is a study structure that includes multiple independent variables, but unlike a true experiment, all of these variables are merely measured rather than actively manipulated. Because every factor in this design—such as pre-existing participant variables—is solely measured, the study is non-experimental and correlational in nature. Consequently, while researchers can examine the relationships between these non-manipulated variables, they cannot use this design to establish definitive cause-and-effect relationships.
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Research Methods in Psychology - 4th American Edition @ KPU
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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.
Causal Limitations of Non-Manipulated Variables
Example of a Non-Manipulated Independent Variable: Private Body Consciousness
Example of a Non-Manipulated Independent Variable: Hypochondriasis
Non-Experimental Factorial Design
Which of the following best describes a non-manipulated independent variable in an empirical study?
If a researcher measures participants' naturally occurring levels of anxiety and also actively assigns them to different therapy conditions, the inclusion of the measured anxiety variable prevents the study from being classified as an experiment.
A researcher is investigating how 'Academic Resilience' (a pre-existing trait) and 'Sleep Duration' (4 hours vs. 8 hours) affect 'Exam Performance'. Match each component of the study with its correct classification.
A researcher is studying how 'Hypochondriasis' (High vs. Low) and 'Instruction Clarity' (Clear vs. Vague) affect task performance. Arrange the following steps in the correct logical order to analyze why 'Hypochondriasis' is classified as a non-manipulated independent variable in this specific research design.
A researcher is developing a research protocol to examine whether 'Openness to Experience' (a pre-existing participant trait) influences the effectiveness of 'Video-Based Learning' compared to 'Text-Based Learning' on 'Topic Retention'. Which of the following research plans represents the most appropriate way to construct an experimental design while correctly utilizing 'Openness to Experience' as a non-manipulated independent variable?
A factor in an empirical study that the researcher measures but does not actively manipulate or alter is known as a(n) _____ independent variable.
A researcher concludes that a study on 'Self-Esteem' and 'Social Feedback' is a true experiment, despite the fact that 'Self-Esteem' was not assigned by the experimenter. To justify this conclusion, the researcher must evaluate 'Self-Esteem' as a(n) _____ independent variable and confirm that 'Social Feedback' was actively manipulated.
A psychologist studies the impact of participant self-esteem (measured as high or low) and feedback type (manipulated as praise or criticism) on task performance. Because self-esteem is measured rather than actively altered, this study cannot be classified as an experiment.
A researcher is conducting a study to see how participant gender (male vs. female), hypochondriasis (high vs. low), and room temperature (warm vs. cool) affect test anxiety. Match each variable component with its correct research methods classification.
Arrange the following steps in the correct logical sequence for designing and executing a factorial experiment that includes a non-manipulated participant variable.
Learn After
Example of a Non-Experimental Factorial Design
What is the defining characteristic of a non-experimental factorial design?
True or False: If a researcher uses a non-experimental factorial design to find a significant interaction between two measured variables, they have enough evidence to claim a cause-and-effect relationship.
A researcher conducts a study to see how a participant’s 'Personality Type' (Extrovert vs. Introvert) and 'Daily Caffeine Intake' relate to their 'Heart Rate.' The researcher surveys participants about their habits and measures their heart rate at a single point in time without any intervention. Match each component of this specific study to its role in a non-experimental factorial design.
A researcher is investigating how 'Sleep Quality' and 'Anxiety Levels' (neither of which were manipulated) interact to influence 'Academic Performance.' Arrange the logical steps required to analyze why this study is classified as a non-experimental factorial design.
Match each structural component of a 'non-experimental factorial design' with its correct description based on the study's design and nature.
Which of the following best explains why a study investigating how both 'Biological Sex' and 'Age' relate to 'Memory Performance' is classified as a non-experimental factorial design?
A researcher measures 'Introversion' and 'Coping Style' in college students to examine how they interact to predict 'Academic Stress.' The researcher then concludes that 'Using maladaptive coping causes higher stress specifically in introverted students.' An evaluator would critique this conclusion by pointing out that the study uses a(n) _____ design, which is correlational and therefore cannot support a cause-and-effect claim.
A researcher investigates daily social media usage by measuring participants' age group (Young vs. Old) and personality type (Introvert vs. Extrovert). True or False: Because this study utilizes a factorial design with multiple independent variables, the researcher can establish a definitive cause-and-effect relationship between personality type and social media usage.
A researcher analyzes the joint relationship of 'Biological Sex' and 'Self-Esteem' on 'Public Speaking Anxiety.' Because both independent variables are pre-existing participant characteristics that are solely measured rather than actively manipulated, the study's design is _____ in nature.
A researcher measures 'Trait Anxiety' and 'Socioeconomic Status' to examine how they interact to predict 'Sleep Quality,' and subsequently claims that high trait anxiety causes poor sleep quality. Arrange the logical steps required to evaluate the validity of this causal claim.