What’s a good test? Flashcards
refers to the consistency of scores obtained by the same persons when they are reexamined by the same test on different occasions
Reliability
an estimate of how well a test measures what it purports to measure. It tells what can be inferred from the test scores.
Validity
are the test performance data of a particular group of test takers
Norms
group of people whose performance on a particular test is analyzed for reference in evaluating the performance of individual test-takers.
normative sample
refers to the process of deriving norms.
Norming
The process of administering a test to a representative sample of test-takers for the purpose of establishing norms.
Standardization
The process of selecting the portion of the universe deemed to be representative of the whole population
Sampling
ideal if generalizability of results is important for your study
Probability Sampling.
all possible subsets of a population are given an equal chance of being selected
Simple random sampling
ordered according to some criteria and elements
Systematic Sampling
divided into homogenous and non-overlapping subgroups
Stratified Sampling
randomly sample a few clusters, and measure all units within that cluster.
Cluster sampling
a sampling technique in which some units of the population have zero chance of selection
Non-Probability Sampling
Also called accidental or opportunity sampling or incidental sampling, this is a technique in which a sample is drawn from that part of the population that is close to hand, readily available, or convenient.
Convenience Sampling
the population is segmented into mutually exclusive subgroups then a non-random set of observations
Quota Sampling.
