Unit 15: Experimental Research Methods Flashcards
1
Q
Correlational research does what?
A
- Predicts a relationship based on two variables
* Doesn’t imply causation, just a relationship
2
Q
Ex. of Correlational research:
A
- Drinking in college and GPA
2. Smoking and lung cancer
3
Q
Participant variables:
A
- Confounding variables associated with the participants
- Controlled by experimental design
- Background difference, mood, anxiety
4
Q
Control:
A
- Compare to the experimental group to authenticate results
* Attaining internal validity
5
Q
Internal Validity
A
- Results are due to experimental manipulation
6
Q
Threats to internal validity (8)
A
- Non-equivalent control and experimental groups
- History Effect
- Testing Effects
- Maturation Effect
- Instrumentation Effect
- Mortality or Attrition
- Diffusion of treatment
- Experimental Effects
7
Q
History Effect:
A
- Outside event could be responsible for the results
- Similar to confounding variable, something outside
- Did anything happen in the external environment during the test that could have influenced my results?
- Database of sex offenders got more hits after the TV segment was shown
8
Q
Testing Effects:
A
- Repeated testing leads to an increase or decrease in performance
- Participants remember the correct answer
9
Q
Instrumental Effects:
A
- Due to measuring instruments
10
Q
Mortality or attrition:
A
Participants dropping out of the study
11
Q
Diffusion of treatment:
A
- Participants spreading information of the treatment
12
Q
Experimenter Effects:
A
- Active bias through behaviour during treatment
13
Q
Controlling for Experimenter Effects (2)
A
- Single blind
Participant doesn’t know treatment - Double blind
Researcher and participants are unaware of treatment
14
Q
Experimental designs (4) :
A
- Quasi Experimental Design
- Single Study
- Between Participants
- Correlated Study
