Midterm 1 Flashcards
(33 cards)
Two goals of scientific psychology
Understand / explain and predict
Is science a subject or a way of thinking?
Way of thinking - leads us to testable explanations of our observation
What is a scientific theory?
Explanations of our observation
Do we use the term Prove?
No, research simply generates evidence that can support or contradict a theory
What is the scientific method?
What are the two methods its based on?
Systematic approach to investigating research questions
- Empirical method
- Hypothetico-deductive method
What is the empirical method
- Observation - gathering data
2. Induction - abstracting the patterns from the data
Empirical observation
Objectivity - only record obj. behaviours and avoid assumptions
- this requires training (have a tendency to rely on intuition)
Empirical induction
Comparing enough data typically yields patterns
- moving from particular instances to a generalized patter is induction - resulting statement is the theory
What is a hypothesis
Precise statement about the assumed relationship between variables - aims to answer the research question
What are research predictions
Outlined by the hypothesis, expressed in terms of observable measures
What is the Hypothetico Deductive method
Theories are evaluated by generating and testing hypothesis
What is Deduction?
The process of moving from theory to observations
What is Replication
Results from one exp are not sufficient to support a theory
Especially likely in psychology - behaviour is varied and flexible
When are replicating likely done
Most likely when the cases have important implications
Do Researchers need to exactly replicate the study?
Not, they can vary the sample, the task and the measurement
Why do we Disconfirm theories
To demonstrate the limitations of any effect
Learning about when theories dont apply can help us better understand the phenomena
Falsifiability - definition and reason
Theories must be stated in terms that make them falsifiable
To allow for tests to show it to be false if this is the case
Literature search
Survey of current literature in an area
Often uses databases like psychinfo or google scholar
Identifying keywords
Mechanisms of searches vary by database, but combining keywords is often the best strategy
Types of studies
- Primary source articles
- Review articles
- Meta analysis
Purpose of primary source articles
- provide the methodology, analyses and results
Purpose of review articles
- provides critiques of research and point out gaps in the knowledge base
Purpose of meta-analysis articles
- stats techniques to analyze the results of many primary sources
- determine the effect size of a given variable on another set of variables
How to evaluate a research article
- consider the authors level of expertise
- Journal’s impact factor
- this refers to the influence the journal has on the community
- higher the impact factor, more prestigious the publication