Chapter 2 pt.2 Flashcards
Descriptive/ Correlational Methods are used when a researcher cannot ___________ the variables under study
manipulate
What are different types of descriptive/correlational methods?
- naturalistic observation
- case study
- survey
What type of descriptive/correlational method is this:
Researcher engages in careful observation of behavior without intervening directly with the subjects.
Naturalistic Observation
What type of descriptive/correlational method is this:
In-depth investigation of an individual subject.
Case Study
What type of descriptive/correlational method is this:
Researchers use questionnaires or interviews to gather information about specific aspects of participants’ behavior.
Survey
In most research there is usually some combination of ________ information and __________ data
survey
observation
How do we measure a relationship between two variables when we didn’t manipulate anything?
- Correlation (statistical test)
- Measures the pattern of two variables, result tells you if there is a reliable pattern of change between the two variables
When the pattern is reliable (i.e., happens consistently), we say the 2 variables are ___________.
correlated
How do correlation statistics work?
- There’s a correlation coefficient
- the correlation is expressed a s a number between 0 & 1
statistic used to summarize of degree of relationship
correlation coefficient
A correlation can be ________ or _______ ; or weak or strong
negative
positive
A correlation can be negative or positive; or ______ or _______
weak
strong
________ __________ _________=increased ability to predict one variable based on the other
higher correlation coefficients
In terms of correlation:
- Larger numbers = ________ relationship between variables
- Smaller numbers = _______ relationship between variables
stronger
weaker
In terms of correlation:
- ________ numbers = stronger relationship between variables
- _______ numbers = weaker relationship between variables
larger
smaller
