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Situational Variable
A situational variable is a type of extraneous variable that involves the broader environmental or contextual conditions present during an experiment, such as the time of day, weather, or physical setting. Since these external factors can unintentionally influence participants' behavior and the dependent variable, researchers must rigorously control them to isolate the true effect of the independent variable.
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Research Methods in Psychology - 4th American Edition @ KPU
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Participant Variable
Situational Variable
Task Variable
Experimental Control
Experimenter's Sex as an Extraneous Variable
Standardizing the Procedure
Experimenter Expectancy Effect
Example of Extraneous Variables: Expressive Writing Experiment
Confounding Variable
Internal Validity
In the context of an experiment, what is an extraneous variable?
In a study examining whether caffeine improves focus, the amount of sleep a participant had the night before would be considered an extraneous variable if it varies between participants and could potentially influence the results.
In psychological research, factors other than the primary ones being studied can often influence the results. Match each research study with the specific factor that would act as an extraneous variable in that scenario.
A researcher conducts a study to see if 'Bright Lighting' (the factor being tested) improves 'Reading Speed' (the performance being measured). However, the group in the bright light reads an interesting novel, while the group in the dim light reads a technical manual. Arrange the following statements to represent the logical sequence of how this extraneous variable (Topic Interest) creates ambiguity in the study's results.
True or False: In experimental research, an extraneous variable is defined as any factor that varies within the context of a study other than the specific variables being investigated.
In an experiment, why does the presence of an extraneous variable that varies within the study make it difficult to draw clear conclusions about the relationship between the independent and dependent variables?
When a researcher evaluates the validity of a claim that one factor caused a change in another, they must determine if any additional factors fluctuated during the study. A factor that varies in the context of the study other than the ones being specifically investigated is known as a(n) _____ variable; its presence requires the researcher to judge the study's conclusions as inconclusive because the true cause of the results cannot be isolated.
A researcher is conducting an experiment to see if a new mnemonic strategy improves memory recall. Match each element of this research study to its correct classification.
A researcher designs an experiment to measure the effect of cell phone use on reaction times. If the participants' age varies throughout the study and potentially affects reaction times, the researcher must recognize age as a/an _____ variable because it is a factor other than the independent and dependent variables that could introduce competing influences.
Order the steps a researcher should take to evaluate and manage potential threats to internal validity from factors outside the primary hypothesis.
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Example of Extraneous Variables: Expressive Writing Experiment
Which of the following best describes a situational variable in a research experiment?
If a researcher administers a cognitive test to half the participants in a brightly lit room and the other half in a dimly lit room, the lighting condition acts as a situational variable.
A researcher is conducting various experiments in psychology. Match each specific environmental factor with the category of situational variable it represents.
Arrange the following research environments in order from those that provide the GREATEST control of situational variables (Position 1) to those that provide the LEAST control (Position 3).
Which of the following best explains why environmental factors, such as the time of day or the physical setting of a laboratory, are classified as situational variables that must be controlled in an experiment?
An extraneous variable that refers to the environmental or contextual factors present during an experiment, such as the noise level, room temperature, or time of day, is specifically categorized as a(n) _____ variable.
Imagine you are a peer reviewer assessing a study on reading comprehension. You find that the 'high-stress' group was tested in a crowded, noisy cafeteria, while the 'low-stress' group was tested in a silent library. In your methodological critique, you would argue that the researchers failed to control for a(n) _____ variable, making it impossible to determine whether any effect was caused by stress or by the physical environment.
A researcher wants to study the effects of caffeine on memory. They test the caffeine group in a brightly lit, warm room at 8:00 AM, and the control group in a dimly lit, cool room at 4:00 PM. True or False: By failing to keep the lighting, temperature, and time of day constant, the researcher has failed to control situational variables, which could unintentionally influence the dependent variable.
In an experiment investigating how expressive writing affects stress levels, analyze the role of each variable by matching it to its correct classification.
Evaluate the following steps a researcher should take to systematically identify, assess, and control situational variables in a psychology experiment. Order them from the initial planning stage to the final execution stage.