intro to scientific research methods in geography chapter 2: fundamental research concepts
TRANSCRIPT
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Intro to Scientific Research Methods in Geography
Chapter 2: Fundamental Research Concepts
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Idea Concepts & Empirical ConceptsWhat are the basic scientific concepts fundamental to conducting and interpreting scientific research?
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Idea Concepts
Theory Hypothesis Causality
Cause / Effect Probabilistic (Stochastic) / Deterministic Necessary / Sufficient Mechanistic / Functional
Model Construct
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Theory
Idea or conjecture about a causal relationship that answers “why” something is the way it is
Application - see handout
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Hypothesis
Idea or conjecture about a pattern of observations of the world
Application - see handout
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Causality
Concept that the occurrence of one state or event can bring about another state or event
Application - see handout
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Causality
Cause Antecedent state or event that brings
about an effect Effect
Subsequent state or event brought about by a cause
Application - see handout
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Causality
Probabilistic (Stochastic) Causal processes that sometimes bring
about effects Deterministic
Causal processes that necessarily bring about effects
Application - see handout
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Causality
Necessary Cause that must be in place for the efect
to occur, but by itself may not be enough to make the effect occur
Sufficient Cause that by itself will make the effect
occur, but may not need to be in place for the effect to occur
Application - see handout
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Causality
Mechanistic Idea that causes move forward “densely”
in space and time, with continuously connected causes and effects
Functional Idea that causes can follow effects,
providing goal states for the effects (heuristic vs. literal use)
Application - see handout
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Model
Simplified representation of a portion of reality, expressed in conceptual, physical, graphical, or computational form
Application - see handout
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Construct
Concept that is a piece of the idealized world comprising the subject matter of theories; the hypothetical entities that we attempt to measure when we perform our systematic empirical observations
Application - see handout
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Empirical Concepts
Case Constants Variables▪ Dichotomous / Discrete / Continuous▪ Latent / Manifest
Measurement▪ Data▪ Measurement Level (Nominal / Ordinal / Interval /
Ratio)▪ Accuracy▪ Precision
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Case
The thing or entity a scientists studies
Application - see handout
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Constant
Attributes or properties of cases that researchers measure and study; value does not vary from case to case
Application - see handout
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Variable
Attributes or properties of cases that researchers measure and study; value varies from case to case
Application - see handout
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Variable
Dichotomous Simplest; takes only two values across
cases Discrete
Takes on only a limited set of distinct possible values
Continuous Takes on an infinite number of possible
values Application - see handout
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Variable
Latent Hypothetical entity that we attempt to
measure; synonym of construct Manifest
Actual entity expressed by our measurements; synonym of measured variable
Application - see handout
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Measurement
Assigning numbers or other symbols to cases to reflect their values on a variable
Application - see handout
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Measurement
Data Values obtained by measurement
Accuracy Correctness of values measured
Precision Sharpness or highest resolution of values
measured Application - see handout
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Measurement
Nominal Classification or naming; not quantitative
Ordinal Rank order
Interval Distance between scale values; no absolute
zero Ratio
Distance between scale values and absolute zero
Application - see handout
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Concept of ScaleWhat are the implications of scale to geographic research?
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What is Scale?
Size Relative Absolute
Spatial / Temporal / Thematic Categories
Phenomenon Scale Analysis Scale Cartographic Scale
Hierarchy of Scales
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Scale
Concept that concerns size, either relative or absolute Spatial Temporal Thematic
Application - see handout
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Scale
Hierarch of scales Fact that geographic phenomena at
diferent scales often interact, existing in nested and nesting relationships to one another
Application - see handout
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Scale
Phenomenon Scale Size at which some human or physical
earth structure or process actually exists Analysis Scale
Size of the unit at which some problem is analyzed
Cartographic Scale Depicted size of a feature on a map
relative to its actual size in the world Application - see handout
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Research IdeasWhat are ways to (1) generate and (2) develop good research ideas?
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Generating Research Ideas
Non-systematic Creativity / Intuition / Experience
Systematic Intensive case study Paradoxical incident Analogical extension Practitioner’s rule of thumb Account for conflicting results Reduce complexity to simpler components Account for exceptions to general findings
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Generating Research Ideas
Non-systematic Creativity / Intuition / Experience
Application - see handout
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Generating Research Ideas
Systematic Intensive case study Paradoxical incident Analogical extension Practitioner’s rule of thumb Account for conflicting results Reduce complexity to simpler components Account for exceptions to general findings
Application - see handout
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Developing research ideas
Find a research area Generate research ideas
Your own ideas first Avoid groupthink / staleness
Link with other knowledge Your own Experts / Literature
Formulate your idea as specific hypotheses Design research to address your
hypotheses
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Developing research ideas
Application - see handout Find a research area Generate research ideas Link with other knowledge▪ Your own▪ Experts / Literature
Formulate your idea as specific hypotheses
Design research to address your hypotheses
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ConclusionFundamental research concepts MATTER...!!