unit 1 Flashcards
Quantitative data?
numerical measurements of quantity or amount
Qualitative data?
in textual or narrative from
4 non experimental methods
observations, self-reports, case studies and correlations
Strengths of quantitative data
easy to analyse, as it can easily be placed in graph form. Also, its easy to compare
Weaknesses of quantitative data
lacks detail, unable to identify feelings, opinions and individual thoughts
Strengths of qualitative
Very detailed, can find out thoughts, feelings and opinions
Weaknesses of qualitative
difficult to analyse, participants responses may be biased by the researchers own thoughts and feelings
6 ethical issues
informed consent, deception, confidentiality, debriefing, withdrawl, protection of participants
random sampling?
every member of the population has an equal chance of being selected
strengths of random sampling
gives the most unbiased results, most generalised to population
weaknesses of random sampling
difficult to gain access to names of all members of the target population
Weakness of opportunity sampling
biased sample as people are likely to be culturally and ethnically similar, may be unable to generalise findings to all members of the target population
strengths of opportunity sampling
quick and convenient, useful for studies where similar characteristics are needed
self selected weakness
volunteers may be more confident so unlikely to be representative and cannot be generalised
self selected strengths
quick and convenient, less likely to drop out
weakness of snowballing
likely to be biased as they have similar characteristics, less representative
likert?
strongly agree…. agree…neutral….disagree…..strongly disagree
semantic-differential scale?
fun…….x…………….boring
strengths of questionnaires
quick and easy to conduct, completed away from the researcher so more likely to gain honest responses, can collect quantitative and qualitative responses
weaknesses f questionnaires
people may misunderstand a question because they are completely independent, may not be returned, depending on types of questions used would determine if analyse is easy or difficult
strengths of interviews
participants can ask for clarification on questions they do not understand, able to get more info, can collect both quantitative and qualitative data
IV?
Conditions- what the experimenter manipulates
DV?
measured- what is measured after changes to the IV have been made
EV?
extraneous variables- other variables that may affect the DV