Psych 105 Flashcards
What is hindsight understanding?
Relies on explanations after the fact
What are Unobtrusive measures
recording behaviour in a way that keeps participants unaware that certain responses are being measured
What is included in descriptive research?
Describes behaviour in natural settings, case studies; naturalistic observation; surveys
What are correlational studies?
relationship between or among variables
What are experimental studies?
Cause and effect relationships
What are the advantages of case studies?
Useful for rare phenomenon, can challenge the validity of theories, Can illustrate effectiveness of programs
What are the disadvantages of case studies?
Does not determine cause and effect very well, researcher bias
What is naturalistic observation?
The researcher will observe behaviour as it occurs in its natural setting. Avoids influencing behaviour
What are the three components to correlational research?
1: the researcher measures one variable
2: the researcher measures a second variable
3: the researcher statistically determines whether the variables are related.
Does correlation establish causation?
no
What is spurious association?
3rd variable problem
Describe positive correlation
as one variable increases so does the other and vice versa. As height increases so does weight
Describe negative correlation
Variables change in different directions, if one variable increases the other decreases. As number of hours of daylight decreases, number of depression symptoms increase
Do scatterplots depict correlation?
yes
What are the three essential characteristics in an experiment?
1: manipulate one variable
2: measure whether this variable produces change in the other
3: control for other factors that may influence results
What is the experimental group?
The group that receives a treatment
What is the control group?
Not exposed to treatment (basis for comparison)
What is an independent variable?
What is being manipulated by the experimenter
What is a dependent variable?
What is being measured by the experimenter & influenced by the independent variable
The descriptive method involves..
all variables being measured, in a natural context where extraneous factors are not controlled
The experimentation method involves..
Independent variables manipulated, typically done in a laboratory, where extraneous factors are controlled
What is external validity?
The degree to which results of a study can be generalized to other populations
What is meta-analysis?
A statistical procedure that combines results from multiple studies on the same topic to test the overall significance
What are the threats to validity of research?
Extraneous variables, placebo effect, experimenter expectancy / bias