Research Methods + history Flashcards
What is a theory?
integrated set of principles that explain and predict observed events
ideas that summarize and explain facts
gives research direction
What is a hypothesis?
A testable proposition that describes a relationship that may exist between events.
testable predictions
allow us to test theories
What are the qualities of a good theory
- effectively summarizes observations and makes clear predictions
- able to confirm or modify it
- can gnerate new research
- suggest practical applications
What is random sampling?
every person in population has equal chance at inclusion
not many random samples are taken in studies (hard to get random sample of entire world)
many groups are represented
non random sampling is skewed by interest
How to formulate the right questions in research?
- construct questions in a way that doesn’t invoke bias
- using proper wording
matters how you say/ask things
wording in questions affect answers
Correlational Research
the study of two or more variables and their naturally occuring relationships
Describe this study.
Douglas Carroll 1944
In glasgow, noted life spans of 843 people. Measured height of gravestone pillars (height reflected cost of it or wealth). Wealth predicted longer lives.
correlational study
Disadvantages and Advantages
Correlational Research
advantages: examining variables in natural setting
disadvantage: ambiguity in cause and effect
Indicates relationships, or variables changing together
define
experimental research
manipulating variables to determine cause and effects.
Lab simulations
different levels of independents, dependents, constants
define
random assignment
The process of assigning participants to the conditions of an experiment such that all persons have the same chance of being in a given condition
takes place in experiments
Advantages and disadvantages
experimental research
adv: explore cause and effect by manipulating/controlling variables
dis: not all variables can be studied with experiments
Define
Replication
Repeating a research study, often with different participants in different settings, to determine whether a finding could be reproduced.
define
Mundane Realism
Ethics of experimentation
Degree to which an experiment is superficially similar to everyday situations
experiemetns dont NEED to have this
Define
meta-analysis
study of studies
summarizing results across studies to discover average effect
experimental realism
Ethics of experimentation
Degree to which an experiment is superficially similar to everyday situations
Deceptions
Participants not knowing the studys true purpose (in order for it run smoothly and accurately)
Demand Characteristics
“cues” from experiment that demand certain behavior
minimize these in experiements
Informed Consent
An ethical principle requiring that research participants be told enough to enable them to choose whether they wish to participate.