Please enable JavaScript.
Coggle requires JavaScript to display documents.
original investigation: on average, participants exposed to different…
original investigation: on average, participants exposed to different audio recordings stating certain words will change the number of words recalled
controlled
list of words
strengths
- eliminates measurement bias
weaknesses
- due to the words all being about music, there was no test of whether random words will affect the number of words recalled
volume
strengths
- remains at a constant volume for each group ensuring everybody hears clearly
weaknesses
- the audio may be too loud or too quiet for some participants
temperature
strengths
- if the temperature is at an enjoyable level for the participant, they may focus more and feel more comfortable
weaknesses
- if the temperature is at an uncomfortable level (too hot or too cold) the participant may become unfocused
time of day
strengths
- depending on the participant's preference the time of day may make them be more energised and awake
weaknesses
- some students may have had multiple long lessons before hand meaning their attention span is not as effective
sample
size
- 39 psychology students
- interest in psychology
- previously studied memory
representativeness
strengths
- same amount of knowledge about psychology (topic - memory)
- similar age (give or take two years)
limitations
- a high number of participants would increase the accuracy rate as 39 students does not compare to the entire population of GIHS, adelaide or the world
- the order in which groups assigned could be bias (e.g. if every second person was female then an entire group would consist of only females)
-
ethics
confidentiality
strengths
- gains participants' trust
weaknesses
- not able to share to results of each participant and compare individually
informed consent
strengths
- informed the participant of the experiment and what is going to happen
- allows the volunteers to prepare
weaknesses
- eliminates the chance of first impressions which could change/impact how they would react
right to withdraw
strengths
- makes the participants feel safer
weaknesses
- if participants do withdraw, that leaves the experiment with uneven group numbers
- could create inaccurate results due to the sudden change of numbers catching the researchers off guard
investigation design
advantages
- provides specific conclusions
- allows cause and effect to be determined
- high level of control
disadvantages
- due to the impact of human error, results are subjective
- time-consuming
- can create situation that are not realistic in everyday society
- extraneous variables can be uncontrollable
variables
IV: mnemonic device (audio recordings)
DV: amount of words recalled
EV:
- situational variable: time of day, volume of audiox background noise, intteruptions
- participant variable: age, sex, nutrition, emotional state