Descriptive Research Flashcards
Define the term Descriptive Research
Provides data about the population being studied but cannot establish cause and effect, as there is no active manipulation of variables by the researcher (also known as observational)
Name 3 types of descriptive research
The Survey
Developmental / Ageing studies
Correlational studies
Describe a Survey
Seeks to determine present practises, opinions or characteristics of a specified population; has three sub types:
- Questionnaire
- Interview
- Normative survey
Describe a Questionnaire
2 form of questions:
- Open-ended; participant can answer freely and in depth, produces qualitative data
- Closed-ended; fixed choice answers (yes or no), produces quantitative questions
Give advantages and disadvantages of Open-ended questions
Advantage: gives participant opportunity to express their feelings and expand on ideas.
Disadvantage: time consuming, limits control over responses and difficult to categorise.
Give advantages and disadvantages of Closed-ended questions
Advantage: quick and easy to analyse data to spot patterns and trends
Disadvantage: participants responses may be false
Describe Correlational research
Investigates how relationships among variables exist and their strength and direction.
Useful to conduct before experiment.
Useful alternative to experiments, due to ethical issues or feasible conduct.
What are the three types of correlation?
Positive, Negative and No correlation
What is a Normative data survey?
Information / data gathered which is compared to social norms, also known as whole population studies.
Give three arguments for Correlation vs. Causation
- Correlation is necessary but not sufficient condition for causation
- If there is no association between variables, there is no causation
- A significant correlation doesn’t prove causation as there is no active manipulation of variables
What are the 2 major problems associated with causation?
- Directionality: do not know which variable caused what, for example; is depression causing fatigue or is fatigue causing depression?
- Third variable problem: if we find a correlation between X and Y, variable Z could have effected findings (e.g. Alcohol or medication)
Name 4 types of correlational design
- Different variables, same subjects, same time
- Same variables, same subjects, different time
- Different variables. Same subjects, different time
- Same variables, different subjects, same time