Testing Competing Theories with Hypotheses
Among the strongest hypotheses are those formulated to distinguish between competing scientific theories. In this scenario, researchers identify two theories that offer conflicting explanations for the same phenomenon. They then design a study and derive a single hypothesis where each theory implies a mutually exclusive outcome. Because the predictions are opposite, observing the study's results will confirm one theory's prediction while simultaneously disconfirming the alternative.
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Research Methods in Psychology - 4th American Edition @ KPU
Related
Deductive Reasoning
Generating Hypotheses
Example of a Non-Testable Hypothesis
Example of a Hypothesis
Role of Hypothesis Testing in Theory Refinement
Sources of Hypotheses: Observation and Prior Research
The Scientific Standard for Establishing Causality: Controlled Experiments
A researcher is investigating the connection between the amount of time spent on a social media app and users' self-reported levels of happiness. The researcher starts with the general idea that excessive social media use might negatively affect well-being. Which of the following statements represents the most effective and scientifically testable hypothesis for an experiment on this topic?
The 'If-Then' Relationship between Theories and Hypotheses
Testing Competing Theories with Hypotheses
Characteristics of a Good Hypothesis
The Cyclical Process of Scientific Inquiry
Deriving a Hypothesis from the James-Lange Theory
Falsifiability and Confidence in Scientific Research
Requirement of a Hypothesis for Scientific Experiments
A-theoretical Hypothesis
Variable
Population
Which of the following statements best describes a scientific hypothesis?
When an empirical study's results fail to support a specific hypothesis, the broader theory from which that hypothesis was derived is automatically considered disproved.
A psychologist is investigating the relationship between physical activity and mental health. Using the scientific process shown in the image as a guide, match each part of their research process to its correct scientific component.
A psychologist is investigating the relationship between 'social support' and 'physiological stress'. Using the provided scientific method diagram as a guide, arrange the following steps in their correct logical sequence, starting from the broadest conceptual level and ending with the evaluation of that level.
A researcher is developing a study based on the theory that 'social support' buffers the effects of 'stress' on 'immune function'. Following the scientific process shown in the provided image, which of the following represents the most appropriately constructed 'hypothesis' for an empirical test of this theory?
A psychologist evaluates the results of an experiment that fail to support their specific prediction. Instead of discarding the broader theory, they decide to refine its assumptions for a follow-up study. This judgment is scientifically sound because, within the hypothetico-deductive method, the disconfirmation of a specific _____ does not logically necessitate the immediate rejection of the theory from which it was derived.
A(n) _____ is a specific prediction regarding the outcome of a particular scientific study.
A researcher derives a hypothesis from the James-Lange theory of emotion, predicting that participants forced to smile will report higher happiness ratings than those forced to frown. The study's empirical results show no difference in happiness ratings between the groups, thereby failing to support the hypothesis. True or False: This outcome logically disproves the underlying James-Lange theory.
Analyze the relationships between components in the hypothetico-deductive method by matching each component of scientific inquiry to its correct description.
Evaluate the cyclical process of scientific inquiry. Arrange the steps of the hypothetico-deductive method in their correct logical order, starting from the source of the prediction to the ultimate refinement of knowledge.
Define the term 'hypothesis' and explain its role within the hypothetico-deductive method. What are hypotheses derived from, and what does it mean for a theory when a hypothesis derived from it is disconfirmed?
Based on the hypothetico-deductive method, explain why this study's outcome does not automatically disprove the psychologist's broader theory that chronic stress impairs spatial memory. What should the psychologist do next with their theory?
A psychology researcher wants to test the theory that high social support buffers against physiological stress. Apply the hypothetico-deductive method by writing a specific, testable hypothesis that could be evaluated in an empirical study.
In the context of scientific research, which of the following best defines a hypothesis?
In the hypothetico-deductive method, finding empirical evidence that disconfirms a specific hypothesis necessarily proves that the underlying theory is completely incorrect.
Dr. Chen is conducting research on social media and mental health. Arrange his actions in the correct order to illustrate the application of the hypothetico-deductive method, starting from the broadest conceptual framework and ending with the evaluation.
A research team is investigating the relationship between social media and mental health. Analyze their research process and match each statement from their study to its corresponding role in the hypothetico-deductive method.
A researcher tests a specific prediction derived from a broad psychological theory. The empirical data strongly contradict the prediction, leading the researcher to publish a claim that the underlying theory is completely invalid. A peer reviewer critiques this conclusion, pointing out a logical flaw in the researcher's reasoning: while the study successfully disconfirmed the specific _____, this does not necessarily mean the broader theory itself has been disproved.
According to the hypothetico-deductive method, from which of the following are hypotheses directly derived?
Based on the hypothetico-deductive method, arrange the following steps in the correct logical order to demonstrate how a scientific idea is conceptualized and evaluated.
Dr. Rivera is investigating social facilitation, a broad psychological framework suggesting that people perform better on familiar tasks in the presence of others. For her specific experiment, she states that professional cyclists will complete a 10-kilometer track significantly faster when riding alongside a competitor than when riding alone. This specific, testable prediction regarding the outcome of her study is known as a(n) _____.
A research team investigates the theory of cognitive dissonance by testing the specific prediction that participants paid $1 for a boring task will report liking it more than those paid $20. If the empirical data reveal that both groups disliked the task equally, an analysis of the hypothetico-deductive method dictates that the underlying theory of cognitive dissonance has been definitively disproved.
Evaluate each of the following researchers' methodological decisions. Match each research action to the most appropriate methodological critique based on the role of a hypothesis in the hypothetico-deductive method.
Definition of a Hypothesis
Which of the following best describes a hypothesis in the context of scientific research?
If an empirical study fails to support a specific hypothesis, the broader scientific theory from which that hypothesis was derived is automatically considered disproved.
A cognitive psychologist is investigating how sleep affects problem-solving. Match each statement from their research process to the correct component of the hypothetico-deductive method.
A clinical psychologist studying social anxiety drafts three statements during their research process. Arrange these statements in order from the most abstract conceptual level (the theory) to the most specific and concrete empirical level (the observation/data).
A peer reviewer recommends rejecting a manuscript, arguing that because the study's data failed to support the expected outcome, the researchers' entire theoretical framework is invalid. You evaluate this critique as logically flawed because, while empirical testing is crucial, disconfirming a single specific ____ does not automatically mean the broader underlying theory has been disproved.
In the context of the hypothetico-deductive method, from what source are hypotheses directly derived?
According to the hypothetico-deductive method, which of the following statements best explains the relationship between a theory and a hypothesis?
Dr. Kripke is investigating the relationship between physical exercise and mood. He states: 'Participants who run on a treadmill for 30 minutes will score significantly lower on a standardized depression inventory than participants who sit quietly for 30 minutes.' This specific prediction regarding the outcome of his particular empirical study serves as the researcher's ____.
Learn After
Example of Testing Competing Theories: Self-Judgment
What is the primary advantage of formulating a single hypothesis to distinguish between two competing scientific theories with mutually exclusive outcomes?
A researcher notices that Theory A predicts participants will perform better on a memory task under noisy conditions, while Theory B predicts they will perform worse. She designs a single experiment to test both predictions at once. If the results show that participants performed worse under noisy conditions, this outcome would provide evidence supporting Theory B while simultaneously counting as evidence against Theory A.
A researcher is studying memory. Arrange the following steps in the correct logical order to implement the strategy of testing the competing theories of 'Trace Decay' and 'Interference' using a single hypothesis.
A researcher is testing two competing theories regarding the effect of background music on study efficiency. Theory A (Cognitive Load Theory) proposes that certain music reduces stress and cognitive load, predicting higher test scores with music. Theory B (Distraction Theory) proposes that music acts as a distractor, predicting lower test scores with music. Match the following research outcomes or study components with their logical role in testing these competing theories.
Imagine you are designing a critical experiment to adjudicate between two rival theories of 'Forgetting.' Theory A () posits that memories 'decay' over time purely due to the passage of time. Theory B () posits that memory loss occurs only because 'new information' interferes with the old. To create a mutually exclusive test, you decide to have participants learn a list of words and then sit in a 'quiet, dark room' with no new stimulation for one hour. Which of the foll
In the strategy for testing competing theories, researchers derive a single hypothesis where the different theories imply mutually exclusive outcomes.
Match each component of the strategy for testing competing theories with the description that best reflects its logical role in a psychological research study.
When judging the scientific merit of a research design intended to adjudicate between two rival theories, a researcher must ensure that the study tests a single hypothesis where the theories predict _____ outcomes, so that the empirical results cannot be consistent with both explanations simultaneously.
A cognitive psychologist is designing a study to adjudicate between two competing theories of reading development. Theory A proposes that children learn to read whole words by sight (direct visual route), predicting that word frequency will affect reading speed but spelling regularities will not. Theory B proposes that children decode words letter-by-letter (phonological route), predicting that spelling regularities will affect reading speed regardless of word frequency.
To test these, the rese
A cognitive-social psychologist is designing a study to adjudicate between two competing theories of social facilitation: 'Drive Theory' (positing that the mere physical presence of others is sufficient to increase arousal and impair complex task performance) and 'Evaluation Apprehension Theory' (positing that arousal increases only when the audience is capable of evaluating the performance).
To test these, the researcher places participants in a room to perform a difficult, complex maze task u