Final Exam Flashcards
(45 cards)
Population sample
Entire population is used in the research
Sample of subset of population
A smaller amount of the population that is representative of the population as a whole
Sampling frame
Samples chosen from a specific source like a university
Census
A systemic collection of data from all members of a population
Probability sample
A randomly selected sample of the population
Non-probability sample
A sample that isnt selected randomly
Representative sample
A sample that accurately reflects the population
Facts
Observations about the world around us (the sky is blue today)
Hypothesis
A proposed explanation for a phenomenon. A starting point for further investigation and testing.
Theory
A well-substantiated explanation made through repeated testing, and has passed all tests and experiments
Law
A statement based on repeated experimental observations that describes some phenomenon of nature
Unstructured interview
The researcher has a brief set of topics they’ll cover
Semi-structured interview
The researcher uses an interview guide with a list of topics and questions
Ethnography
Includes participant observation, immersion in a social setting, field notes, long periods of time
Overt role
When the people you’re observing know you’re conducting research
Covert role
When you’re doing undercover research
Open setting
The researcher has open access to social settings. Like in public areas
Closed setting
The researcher does not have free access, no public access, like researching a gang
Grounded theory
The theory is created as the research is conducted and info and data are collected. “Grounded” in observations and data
Normal distribution
A bell shaped curve of a probability sample. If the sample is large enough, it should be around 95% accurate. With one side of popularion -1.95 and other side +1.95 away from the population mean
Nominal variable
Categorical variable - where they have no relationship to each other like belonging to a religion
Ordinal variable
The different variables are rank-ordered, great than > and less than
Interval ratio
The distance between the variables is the same (like minutes as a marker for time spent doing cardio)
Experimental designs need…
Validity, reliability, and replicability