Scientific Paradigm
a commonly accepted view about a subject
what is something all psychologists can agree on
all agree that the scientific method serves as the unifying foundation for the science of psychology
what are the three lessons learnt from Clever Hans
Lesson 1: the value of skepticism
Lesson 2: the value of controlled experimentation
Lesson 3: observer-expectancy effects
Explain the value of skepticism (lesson 1)
-Funks was able to learn the truth about hand because he was skeptical
-scientists attempt to disprove theories rather than to prove them
Explain the value of controlled experimentation (lesson 2)
Explain the Observer-expectancy Effects (lesson 3)
-observers may unintentionally communicate to subjects on their expectations which can possibly change the results
eg. taking and oral quiz and knowing your doing good because of the facial expressions of the person giving the quiz
What are the 6 steps of the scientific method
what is Descriptive Research
what is the difference between Naturalistic Observation and Participant Observation
naturalistic = you watch and learn without manipulating variables (just watching)
participant = the researcher actually interacts with the population of interest instead of just watching
Why do we have Case Studies
because for studying conditions that are so rare, it would be impossible to find a large sample of individuals with the same condition
you are only looking at 1 person but gathering a LOT of data
What are some DISADVANTAGES for case studies
what is Survey research and what is the “representative sample”
survey research is a type of research that uses questions to get specific information from a group of people
You can study the entire population so you need a representative sample that represents the important characteristics of the population
what are correlational studies
looking at the relationship and strength between two or more variables
what are some PRO’s about correlational studies
what are some CONS about correlational studies
what are 3 characteristics of experimental methods
what is the difference between the independent and dependant variable
independent = what the experimenter changes
dependant = dependant on the independent variable (what the participant does)
what is a stratified random sample
people are divided into categories and a few are taken from each
what is the difference between “between subjects” and “within subjects”
between = each group in the experiment is composed of a different set of participants and each group gets a different treatment
within = each participant is exposed to ALL conditions of the independent variable
Explain the ABA design
(A) - the participant is tested in the firs condition
(B) - the participant is tested in the second condition where you manipulate something (intervention phase)
(A) - back to the original condition (reversal phase)
what is a problem with the ABA (reversal) design
the removal of treatment B
- if the treatment is working for the better, it isn’t ethical to stop the treatment
- or the variable (B) may have a big effect and after the treatment is removed and it doesn’t go back to how it was
what is the Multiple Baseline Design
where you have more than one participant and you introduce the treatment at different times for each
this way you can be more certain that it was the treatment that caused the change
what is Internal Validity
when the experiment is free from errors and any difference in measurement is due to the independent variable and nothing else
(the experiment is valid)
what is External Validity
when research results from an experiment can be inferred externally and outside the experiment
(valid externally)