Statistic
Observational Study
Survey Study
Bias
Parameter
Experimental Study
Stratified Sampling
Secondary Data
Population
Sample
Systematic Sampling
Primary Data
Cluster Sampling
data that is collected directly by the researcher
a group within the population
a method involving selecting participants at a regular interval
a method involving dividing potential participants with similarities into groups. Then participants are selected randomly from these groups
data that is collected directly by someone other than the researcher
a study where researchers observe the effect of a specific factor on a group or groups of a population
a method involving dividing participants into groups. Then some of the groups are selected to participate in the study
a study where researchers survey a group or groups from a population to estimate the characteristics of the whole population
a measure or value of the sample
a study where researchers try to understand a cause and an effect relationship
the entire group a researcher is interested in
when data is collected in a way that does not represent the population
a measure or value of the entire population
