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Field Experiment
A field experiment is a type of field study where the researcher actively manipulates an independent variable in a natural setting while controlling extraneous variables as much as possible. Depending on the level of control achieved, these studies can yield high levels of both internal and external validity.
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Research Methods in Psychology - 4th American Edition @ KPU
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Field Experiment
External Validity
What is the primary defining characteristic of a field study in psychological research?
A researcher who wants to maximize the ability to generalize their findings to everyday life would likely choose to conduct a field study rather than a laboratory experiment.
A researcher is deciding on the best setting to ensure their findings about social interaction are generalizable to everyday life. Arrange the following research scenarios in order from the one that provides the highest external validity (1) to the one that provides the lowest external validity (3), based on the naturalness of the environment.
Analyze the relationship between research context and generalizability by matching each term with the description that best captures its specific role in psychological research.
In the context of psychological research, which statement best captures the reason that a field study typically offers greater 'external validity' than a laboratory-based study?
A researcher is evaluating the trade-offs between strict variable control and real-world applicability for a study on helping behavior. They conclude that the artificiality of a laboratory would compromise the study's relevance to daily life. By making the judgment to prioritize generalizability and move the research into a natural environment, the researcher is opting for a(n) _____.
Research that is conducted in a natural, real-world environment rather than an artificial laboratory is referred to as a(n) _____ study.
A clinical psychologist wants to study how anxiety affects social interactions. They choose to observe participants in a busy local coffee shop rather than in a controlled laboratory room. Because this is a field study, they should expect their findings to have higher external validity but lower internal validity compared to a laboratory design.
Match each methodological characteristic of research settings with its correct description or implication based on the trade-offs of field studies.
Evaluate the research designs below based on the control they afford over extraneous variables. Arrange these scenarios in order from the design that provides the HIGHEST capability to support causal conclusions (highest internal validity) to the design that provides the LOWEST capability to support causal conclusions (lowest internal validity).
Types of Experimental Research
Basic Experimental Design Components
Interpreting Experimental Findings in Psychology
Reporting Research in Psychology
Weakness of Experimental Research: Artificial Settings
Ethical Constraints in Experimental Research
The Core Aim of Experimental Research
Primary Strength of Experimental Research: Establishing Causality
A researcher wants to test if a new note-taking strategy improves exam performance. They teach the new strategy to their morning class and the traditional strategy to their afternoon class. At the end of the unit, the morning class scores significantly higher on the exam. The researcher concludes that the new strategy causes better exam performance. Which of the following statements best analyzes the validity of this conclusion?
Falsifiability
Example of an Experiment: Lighting and Worker Productivity
Field Experiment
Experiment
Inability to Manipulate Variables
Experimental Record Keeping
Non-Experimental Research
Quasi-Experimental Research
Comparison of Internal Validity Across Research Designs
Applications of Surveys
Laboratory Experiment
Single-Subject Research
Match each component of experimental research with its specific role or function in the study design.
A researcher wants to know whether a new memorization strategy causes higher quiz scores. She recruits 50 participants and allows each person to choose whether to use the new strategy or their usual approach. She then compares the average quiz scores of the two groups. This study qualifies as an experiment because it compares two groups on a measured outcome.
In experimental research, what is the primary objective of systematically manipulating an independent variable and randomly assigning participants to conditions?
Match each core component of experimental research with its specific role in the research process.
A researcher investigating the effect of exercise on mood assigns 50 participants to a high-intensity workout group and 50 participants to a stretching group by flipping a coin for each person. True or False: Because the researcher used randomized assignment and systematically manipulated the type of exercise, this study qualifies as experimental research.
To establish a causal relationship between two variables, a researcher must strictly adhere to the logic of experimental design. Arrange the following steps in the sequence required to ensure internal validity and support a causal inference.
In the context of experimental research, which of the following best describes the fundamental goal of exercising a high degree of 'control' over variables of interest?
A researcher claims their study demonstrates that one variable directly produces a change in another, but a reviewer notices that participants were not randomly assigned to conditions. In evaluating the research design, the reviewer concludes that the lack of randomization prevents the study from supporting a(n) _____ inference.
In experimental research, the variable that the researcher systematically manipulates to observe its effects on the dependent variable is called the _____ variable.
An investigator wants to design a study to test a causal hypothesis. Evaluate the logical flow of components in experimental research by ordering these steps from the initial establishment of control to the final research objective.
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Participant Selection Rules
Which of the following is the defining characteristic of a field experiment?
In a field experiment, the researcher sacrifices the ability to actively manipulate the independent variable in exchange for conducting the study in a natural, real-world setting.
A researcher investigates whether different types of background noise in a university library affect student concentration. Match each element of this study to the characteristic of a field experiment it represents.
A researcher is interested in how 'environmental prompts' influence littering in public parks. Rank the following research scenarios from the least to the most representative of a high-quality field experiment.
Match each core component of a field experiment's definition to the description that correctly identifies its role in a research study.
Which statement best describes the primary trade-off a researcher makes when choosing to conduct a field experiment rather than a laboratory experiment?
A field experiment is described as a methodological hybrid because it utilizes a natural setting to maintain high external validity while relying on the active manipulation of an independent variable to establish _____ validity.
A researcher wants to study social compliance. She instructs a confederate to drop papers in a busy university hallway either while wearing a formal suit or wearing casual clothes, and measures how many passersby help pick up the papers. Because she is manipulating an independent variable (clothing type) in a natural setting (hallway) and attempting to control for the time of day, this study is classified as a field experiment.
In a field experiment, the researcher actively manipulates an independent variable in a natural setting. However, the study's ability to yield high internal validity is directly dependent on the level of _____ achieved by the researcher over extraneous variables.
Rank the following research scenarios from the least aligned (1) to the most aligned (3) with the definition of a high-quality field experiment that yields high internal and external validity.