Week 2 Flashcards
Census
Collects information on all members of a population.
General parameters of a census:
- Establish and maintain a complete list of all members of the population.
- All members must be included
- Enforceable and enforced
Survey Research is..
based on the simple idea that one of the best and most efficient ways to gather data is to ask questions directly of people or organization.
When to implement a survey
Do you know enough about the topic?
You must understand topic to know what specific, structured questions to ask people.
When knowledge of the topic is rudimentary, you might want to do a focus group or qualitative interviewing.
Do not spend time/money on a survey only to ask the wrong questions.
What is sampling?
Surveys use a representative group of a population to determine the characteristics of the entire population.
The sample represents the entire population.
The data collected from the representative sample is expanded to produce an estimate of the total population
The estimate has two parts: point estimate and margin of error
Population
The entire group of individuals about which we want information.
Sample data
Is the part of the population from which we actually collect information and is used to draw conclusions about the whole population.
Longitudinal Survey
is a research design that involves repeated observations of the same variables (e.g., people) over short or long periods of time (i.e., uses longitudinal data). It is often a type of observational study, although they can also be structured as longitudinal randomized experiments.[1]
Longitudinal studies are often used in social-personality and clinical psychology, to study rapid fluctuations in behaviors, thoughts, and emotions from moment to moment or day to day; in developmental psychology, to study developmental trends across the life span; and in sociology, to study life events throughout lifetimes or generations; and in consumer research and political polling to study consumer trends. The reason for this is that, unlike cross-sectional studies, in which different individuals with the same characteristics are compared