Single-Variable Research

Non-Causal Statistical Relationship

Practical or Ethical Constraints Requiring Non-Experimental Research

Broad and Exploratory Research

Which of the following situations makes non-experimental research the necessary and appropriate choice for a study?

Match each research scenario to the primary condition that makes a non-experimental design the appropriate choice.

A researcher wants to investigate whether experiencing a high-magnitude natural disaster leads to long-term post-traumatic stress symptoms. Arrange the logical steps the researcher would take to analyze and conclude that a non-experimental design is the necessary choice for this study.

When a researcher determines that a research question requires exploring the broad and subjective experiences of survivors of a natural disaster, they are making a scientifically sound judgment by choosing a non-experimental design, as the complexity of subjective experience is fundamentally incompatible with the variable manipulation required for an experiment.

You are tasked with proposing a novel research framework to investigate the 'psychological impact of being a long-term caregiver for a spouse with a chronic illness'. Given that you cannot ethically or practically manipulate the independent variables, which of the following proposals correctly synthesizes the scientific conditions necessary to justify a research design that avoids experimental manipulation?

A researcher must use an experimental design to study potential causal relationships, even when manipulating the independent variable is ethically or practically impossible.

A researcher wants to study the relationship between a person's birth order (e.g., being an only child vs. having siblings) and their level of extraversion. This study must use a(n) _____ design because birth order is a variable that the researcher cannot ethically or practically manipulate.

Read each research scenario and match it to the condition that makes a non-experimental design the appropriate choice for that study.

A social psychologist collects survey data showing that college students who report higher loneliness scores also tend to report lower academic motivation. Because loneliness was measured rather than manipulated, the researcher can establish only a _____ between the two variables and cannot rule out that a third variable—such as depression—accounts for both outcomes.

A researcher wants to study whether early childhood exposure to high levels of air pollution impairs cognitive development in school-age children. She must evaluate whether a non-experimental design is justified and select the best approach. Arrange the following evaluation steps in the correct logical order.