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.

Define a field experiment by identifying its three core components, and state the conditions under which it can achieve high levels of both internal and external validity.

Explain how the uncontrolled background music and weather serve as extraneous variables in this scenario, and discuss how the lack of control over these variables affects the study's internal validity.

A researcher conducts a study in a local grocery store to test if placing healthy snacks at eye level increases their sales compared to placing them on the bottom shelf. Explain how this design meets the definition of a field experiment by identifying the independent variable, the natural setting, and one extraneous variable the researcher should control.