4.1 Foundations of Sampling
Census study = study that attempts to include the whole population, it doesn't pick a sample from the population
4.1 Foundations of Sampling
Census study = study that attempts to include the whole population, it doesn't pick a sample from the population
Article 1: Venetis (2017)
Check the model in the lecture slides about this!!
Randomized block designs
Analysis strategy
A 3-by-4 design has 4 factors each at 3 level
Not correct, it is 2 factors each with different levels, so one has 3 and one has 4 levels. The number of numbers is amount of factors and the value of the numbers is the amount of levels.
rue effec
Signal noise ratio = Signal / Ratio
Signal,
The construct you are trying to measure, or the effect of the program or treatment that's being implemented.
Mortality threat
Also called "Selective attrition"
nstrumentation threat
Only in pretest-posttest design
Testing threat
Only in pre-post design
Maturation threat
Internal changes in person that happen over time
Thank the respondent,
Also: Immediately after leaving, have the interviewer write down any notes about how the interview went.
Scaling
The set of questions on a survey cannot be considered a scale unless a scaling process was followed to identify the questions and determine how the responses would be combined. So, just because a set of questions on a survey looks like a scale, it collects data using the same response scale, and it is even analyzed like a scale, it isn’t a real scale unless some type of scaling process was used to create it.