PR EXAM Flashcards
It refers to a collection of individuals who share one or more noteworthy traits that are of interest to the researcher.
POPULATION
may be all the individuals belonging to a specific category or a narrower subset within that larger group.
POPULATION
It is a small portion of the population selected for observation and analysis.
SAMPLE
It is the procedure of getting a small portion of the population for research.
SAMPLING
It refers to the extent your findings can be applied in other contexts.
GENERALIZIBILITY
4 ways to determine sample size
HEURISTICS
LITERATURE REVIEW
FORMULAS
POWER ANALYSIS
The rule of thumb for the sample size used in a study.
HEREUSTICS
You may read studies similar to yours and check the sample size they used.
LITERATURE REVIEW
*refer to the formula provided in the book
FORMULA
Considered the most precise and is founded on the principle of statistical power.
POWER ANALYSIS
advantage of sampling first three
SAVES TIME MONEY EFORT
YIELDS BETTER OUTCOMES
FASTER LESS EXPENSIVE COST EFFECTIVE
advantage of sampling last ttwo
MORE ACCURATE
PROVIDES MORE COMPREHENSIVE INFORMATION
The formula is ideal for big populations. A margin of error of 5% is considered acceptable.
SLOVINS FORMULA
slovins equation
N/( 1 + NE2)
Every member of the population has a probability of being selected or included in the sample.
PROBABILITY SAMPLING
All members of the population have an equal chance at being chosen as part of the sample.
SIMPLE RANDOM SAMPLING
The population is split into different groups. People from each group will be randomly chosen to represent the whole population.
STRATIFIED RANDOM SAMPLING
The sample is drawn by randomly selecting a starting number and then selecting every nth unit in arbitrary order until the desired sample size is reached.
SYSTEMATIC RANDOM SAMPLING
Districts or blocks of a municipality or a city which are part of the cluster are randomly selected.
CLUSTER/AREA SAMPLING
Participants are intentionally selected based on certain identified factors.
NON PROBABILITY SAMPLING
Participants are chosen for their convenience and availability, rather than through a random or systematic selection process.
CONVENIENCE SAMPLING
Individuals with specialized knowledge or expertise in a particular field are selected to participate in a study.
EXPERT SAMPLING
Participants are selected based on pre-defined quotas to represent specific characteristics or subgroups.
QUOTA SAMPLING
Participants are chosen based on referrals or recommendations from existing participants.
SNOWBALL SAMPLING