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Practical or Ethical Constraints Requiring Non-Experimental Research
Even when a researcher's question addresses a potential causal relationship, a non-experimental design is required if practical or ethical barriers prevent the manipulation of the independent variable or random assignment. In such cases, researchers cannot deliberately alter conditions and must instead rely on the observation of pre-existing, naturally occurring differences to investigate the phenomenon.
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Research Methods in Psychology - 4th American Edition @ KPU
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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.
Describe the four distinct conditions under which non-experimental research is the appropriate or necessary choice instead of an experimental design, according to psychological research methods.
Based on the provided context, explain why Dr. Aris must use a non-experimental design for this study, identifying the specific constraint that prevents an experimental design.
A clinical psychologist wants to measure the prevalence of generalized anxiety disorder symptoms among incoming university freshmen using a standardized self-report scale. Apply your knowledge of research designs to state whether an experimental or non-experimental design is appropriate for this study, and justify your choice in one or two sentences.
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Example of Practical or Ethical Constraints Requiring Non-Experimental Research: Hippocampus Damage
Under what condition is a researcher required to use a non-experimental design to investigate a potential causal relationship?
In psychological research, certain barriers prevent researchers from using experimental methods even when investigating causal questions. Match each description with the concept that explains why or how a non-experimental design is used.
A researcher wants to study the long-term effects of heavy alcohol consumption during pregnancy on a child's cognitive development. Because it is unethical to deliberately assign pregnant women to drink alcohol for research purposes, the researcher must use a non-experimental design to compare children whose mothers chose to drink with those who did not.
A researcher is investigating whether long-term social isolation causes cognitive decline in the elderly. Arrange the steps of the researcher's analysis to determine why a non-experimental design must be used for this causal investigation.
When practical or ethical barriers prevent the manipulation of an independent variable, researchers must rely on the observation of pre-existing, naturally occurring differences.
In a scenario where a researcher wishes to study a causal relationship but finds that manipulating the independent variable is prohibited by ethical standards, what characterizes the resulting non-experimental approach?
In evaluating the design for a study on the long-term cognitive effects of witnessing domestic violence in childhood, a researcher concludes that a non-experimental design is the only viable option. This decision is based on the assessment that the _____ of the independent variable is prohibited by ethical standards, making a true experiment impossible.
Match each hypothetical research scenario with the appropriate methodological concept or constraint based on the conditions for non-experimental research.
A researcher is studying the potential causal relationship between localized brain damage and memory loss. Because they cannot ethically damage participants' brains, they must analyze this phenomenon by relying on the observation of _____ differences.
Evaluate the research scenario of investigating whether childhood lead exposure causes learning disabilities, and order the steps the researcher must take to justify and implement a non-experimental design.
Identify and describe the primary types of barriers that require a researcher to use a non-experimental design, even when their research addresses a potential causal relationship. According to the conditions of non-experimental research, what must the researcher rely on instead of deliberate manipulation?
Diagnose the fundamental flaw in Dr. Miller's initial study design based on the conditions for non-experimental research. How must he alter his approach to investigate this potential causal relationship?
A developmental psychologist wants to investigate whether growing up in extreme poverty causes lower academic achievement. In one to three sentences, explain how the psychologist can apply a non-experimental design to study this causal question when practical and ethical constraints are present.
Uncertain Causality Between Brain Differences and Gambling Disorder
Even when a research question focuses on a potential causal relationship, which of the following is the primary reason a researcher must choose a non-experimental design?
Match each research scenario with the primary barrier that prevents researchers from using an experimental design to study it.
A clinical psychologist wants to study whether severe childhood emotional neglect causes chronic low self-esteem in adulthood. To establish a strong causal claim, the researcher can ethically use an experimental design by randomly assigning a sample of infants to be neglected by their parents, provided the families are paid a high financial compensation.
A developmental psychologist wants to investigate whether prenatal exposure to high levels of maternal stress causes long-term emotional regulation issues in offspring. Arrange the steps of the researcher's methodological analysis in the correct order, starting from the initial causal inquiry to the selection of a non-experimental design.
A researcher wants to investigate whether regular, heavy alcohol consumption during pregnancy causes developmental delays in infants. To establish a strong causal claim, the researcher considers randomly assigning a group of pregnant women to consume four alcoholic drinks daily, while a control group abstains. In evaluating this research proposal, an Institutional Review Board (IRB) would reject the experimental design because deliberately exposing a developing fetus to a known neurotoxin violates fundamental human rights and presents an insurmountable ________ constraint, forcing the researcher to rely on naturally occurring differences instead.
When ethical or practical barriers make it impossible to manipulate an independent variable, researchers are unable to investigate the research question and must abandon the study completely.
When ethical or practical constraints prevent a researcher from manipulating an independent variable to study a causal relationship, how does the methodological approach to the independent variable change?
An investigator wants to study several causal hypotheses but faces severe ethical or practical constraints. Match each causal research question with the appropriate non-experimental design the researcher must apply to ethically and practically investigate the hypothesis.
An educational psychologist investigates whether attending underfunded public schools causes lower career earnings in adulthood. Because the researcher cannot randomly assign children to attend underfunded or well-funded schools for twelve years due to severe practical and ethical constraints, they must choose a non-experimental design. In analyzing this design, because the researcher cannot deliberately alter the school funding conditions, they must instead rely on the observation of ________ differences in school funding that already exist in society.
A research team wants to investigate whether chronic, extreme sleep deprivation (sleeping under 3 hours a night for a year) causes permanent neurological damage in humans. They are evaluating several proposed research methodologies.
Based on the ethical standards and practical constraints of psychological research, arrange these proposed designs in order from the most ethically and practically justifiable (Rank 1) to the least justifiable (Rank 3).