Lecture 1 - course intro Flashcards
what are the key properties of scientific theories?
Testable predictions and falsifiability
what does the scientific method involve?
Observation (data), explanation (theory), and prediction (hypothesis)
what is a paradigm in science?
a framework for understanding and investigating phenomena that defines concepts, research questions, and methodologies in a discipline
what historical theory was replaced by germ theory?
Miasma theory, which believed disease was caused by particles in foul odors
what are the steps involved in the scientific method?
the steps involved in the scientific method are observation (data collection), explanation (theory formation), and prediction (hypothesis generation)
why is falsifiability an important property of scientific theories?
Falsifiability is important because it allows theories to be tested and potentially disproven, which is essential for scientific progress and refining knowledge
what was the historical significance of John Snow’s cholera case map and Semmelweis’s handwashing data?
John Snow’s cholera case map and Semmelweis’s handwashing data provided evidence that challenged the miasma theory and supported the germ theory of disease, which posits that microbes cause disease
What are the main components of the scientific method
The main components of the scientific method are:
- observation (data)
- explanation (theory)
- prediction (hypothesis)
what are the properties of scientific theories?
the properties of scientific theories include:
- testable predictions
- falsifiability (the ability to generate hypotheses that can be evaluated against data and disallowed by potential observations or patterns of data)
How is scientific knowledge refined?
scientific knowledge is refined by:
- provisionally accepting a theory if a theoretical prediction is confirmed by observation and testing another hypothesis
- making theoretical adjustments to bring the theory in accord with disconfirming results
rejecting the theory in favor of an alternative that is consistent with the data when disconfirming results are obtained
what is a paradigm in the context of scientific research?
- a paradigm is a framework for understanding and investigating phenomena within a discipline
- it defines the concepts used in theories, the research questions addressed by the discipline, and the methodologies used to investigate these questions
How did the Miasma Theory explain the cause of diseases?
The Miasma Theory explained the cause of diseases as being caused by particles suspended in foul odors - miasma - emanating from rotting organic material. proximity to a miasma was considered a key vulnerability factor
What led to the shift from Miasma Theory to Germ Theory?
The shift from Miasma Theory to Germ Theory was heralded by findings such as Semmelweis’s data on handwashing reducing infections and John Snow’s map of cholera cases identifying a cluster around a contaminated water pump
What was the focus of Freud’s approach to understanding behaviour?
Freud’s approach focused on “looking inward” to consider how the unconscious mind influenced thoughts and behavior
what was the main principle of Watson’s Methodological Behaviorism?
Watson’s Methodological Behaviorism rejected the study of unobservable phenomena, such as overt behaviors, and the relationships between stimuli and their behavioral consequences.