PSYCH / SOC Class 2 Flashcards
What is experimental designs?
Directly manipulates variable
What is non-experimental designs?
Variable not directly manipulated
What are the two variables present in th experimental designs?
Independent and dependent group
What is present in an experimental designs?
Random sampling and random assignment
What does experimental design include?
Control of extraneous variables
What are types of non-experimental designs?
Longitudinal, case, observational, ethnographic or even biographic studies
What is a confound?
A manipulation of treatment to make independent variable more significant
What are two reasons experiments can be challenging?
- Ethical problems
2. Difficult to give the treatment
What does the non-experimental design lacks?
Not select to prevent confounds, no control and no causation is allowed
What is causation?
One variable causes a change in the other
What is ethnographic studies?
The study of people in their own environment through the use of methods such as participant observation and face-to-face interviewing.
What are phenomenological studies?
Lived experiences; gauge emotion during viewing
Which non-experimental design can be experimental sometimes?
Longitudinal Studies
What is correlation research?
Able to make a comparison between two types of group; determine relationship
What type of variable is confound?
Any variable that makes conclusion questionable
Case studies relate more to individuals rather than a sample. T/F
True (this I don’t know)
What is the between subjects design?
Compare different groups of subjects
What is the within subjects design?
Every participant experience entire experiment
In the within subjects design, where is the control group?
Each individual is a control group
In the within subjects design, where is the control group?
Each individual acts as their own control
What is quantitative research design?
Deals with numerical data
What is qualitative research design?
Deals with narrative data
What is mixed methods stud design?
They use several types of study design and implications
Which type of study is not reasonable for within subjects?
Drug studies
What is repeated measures design?
Continuous take measures throughout the experiment
What are examples of repeated measures?
Baseline measurement, mid measurement and conclusion measurement
What is the quasi-experimental known as?
A pseudo-experiment
What is a characteristic of the quasi experiment?
All but 1 variable is controlled (ex. gender)
What is a nuisance variable?
A variable that cannot be changed or controlled
What is quasi experiment used with?
Comparative method
What is quasi experiment used with?
Comparative method
Why is a survey or questionnaire flawed?
Because it’s a self-report; don’t know if participant are being honest
What is internal validity?
Extent to which the outcome variable is due to the intervention
When thinking of internal validity, what should you think about?
Accuracy of findings/conclusions
What are the five common threats of internal validity?
- Impression Management
- Confounding variables
- Lack of reliability
- Sampling bias
- Attrition Effects
What is the impression management also known as?
Hawthrone Effect, social desirability bias
What is the impression management affect?
Participants adapt their responses based on social norms or perceived researcher expectations
What is the confounding variables?
Extraneous variables not accounted for in the study; lack of useful control
What is the lack of reliability?
Measurement tools do not measure what they purport to, lack consistency
Why can confounding variables be included in the study?
Because another variable offers an alternative explanation for results
What is sampling bias?
Selection criteria is not random
What is sampling bias based on a population?
Population used for sample does not meet conditions for statistical test
What is attrition effects?
Participants fatigue; participants drop out of study