Types of Research:
1. Descriptive
- We cannot say exactly, but we can describe what we see.
- Any research that observes and records
A. Case Study
- A detailed picture of one or a few subjects
- Where one person (or situation) is observed in depth
- Most common type of study in Psychology
- Measures correlation
- Cheap and fast
- Use interview, mail, phone, internet, etc.
- Low response rate
- Identify the population you want to study
- The sample must be representative of the population you want to study
- One reason is the false consensus effect (the tendency to overestimate the extent to which others share our beliefs and behaviors
- low response rate
- people lie or just misinterpret themselves
- "wording" effect
- Watching subjects in their natural environment
- DO NOT Manipulate the environment
- Just the fact that you know you are in a survey can cause changes
- Correlation expresses a relationship between two variables
- does not show causation
- A number that measures the strength of a relationship
- Range is from -1 to +1
- The relationship gets WEAKER the CLOSER you get to ZERO!
- Positive-the variables go in the same direction
- Negative-the variables go in the opposite directions
2 Talk Back(s):
Could you explain a little more about what the variables are in positive or negative correlation? To my understanding the variables being measured are the dependent and independent variable, but if you could develop that further it would be very helpful.
A good example to use for negative correlation is letter 'I' on the worksheet we did in class on February 11, 2014. It stated "There is a negative correlation between smoking cigarettes and living a long, healthy life." An example for positive correlation would be to think of a persons pay check as 'x' and the amount of hours they work as 'y', the more hours a person works in a day, the higher their paycheck increases. Hope this helped.
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