Psychology 2019 v1.3
IA3 high-level annotated sample response
Queensland Curriculum & Assessment Authority
August 2018
interpretation [5–6]
thorough and
appropriate
identification of
limitations of evidence
The response identifies
limitations of the
evidence that are not
superficial or partial.
The limitations are
suitable for determining
the reliability of the
evidence in responding
to the research
question.
justified scientific
argument/s
The interpretation of the
evidence shows an
understanding of the
process used to select
evidence to construct a
scientific argument. The
scientific argument
communicates sound
reasoning and draws
upon valid and reliable
evidence.
Conclusion and
evaluation [5–6]
justified conclusion/s
linked to the research
question
Throughout the
response, the response
uses sound reasoning
and valid and reliable
evidence to support
conclusions that directly
respond to the research
question.
insightful discussion
of the quality of
evidence
The discussion
communicates
understanding of the
features of the evidence
that affect how well it
can be used to respond
to the research
question.
A limitation of the study was that the sample comprised of primarily
university students with a Hispanic ethnicity. Thus, care must be taken in
generalising these results beyond this participant group. A strength of the
methodology was that aggression was measured at pre-game play, with
participants randomly allocated based on this characteristic, limiting it as a
confounding variable. However, as the study was conducted in a
laboratory, using a noise blast to represent aggressive behaviour, and
self-report techniques to assess hostile feelings, the research lacks
ecological validity. This is because in both instances they are artificial
measures that are extrapolated to thoughts and feelings in the real world.
Low ecological validity limits the ability to generalise the results to settings
outside the research itself.
Since the result of this study was not statistically significant, it can be
concluded that playing violent video games does not cause an increase in
aggression. Evidence from the no-game control group (highest measured
aggression score) further suggests that there could be an additional,
unmeasured (confounding) variable that may be the cause of aggression.
However, due to the limitations of the methodology, it is difficult to
generalise these results with certainty.
Conclusion:
The research evidence from Bushman and Anderson (2002), contradicts
that from Unsworth, Devilly and Ward (2007) and Ferguson and Rueda
(2010). These researchers found a low to no correlation and a non-
significant effect between playing violent video games and an increase in
aggression. Additionally, Bushman and Anderson (2002) had a mixed
statistical result with a significant effect observed for behave aggressively
and feel angry and aggressive and a non-significant result for aggressive
thoughts and ideas. The findings from all three researchers suggest that
further investigation is needed into the effect of violent video games and
behaviour before a conclusion can be drawn with confidence.
However, the research evidence presented in this essay suggests that
playing violent video games does not cause an increase in aggression in
comparison to nonviolent video games in users.
Evaluation:
In order to determine the quality of the evidence, the appropriateness of
the method used, the rigour employed when controlling the variables, and
the parameters under which the data was intended to be applied, will be
discussed. Improvements and extensions to the research will also be
suggested.
Firstly, the methodologies used by researchers to measure aggression
were flawed, as in most instances they were highly artificial (e.g. noise
blast as a measure of aggressive behaviour) and/or used self-report
measures (e.g. questionnaires). Artificial measures lead to a decrease in
ecological validity, and self-report measures are criticised within
psychology as they are open to participant bias. As such, an improvement
would be to use supporting measures such as teacher, peer, and/or
parent ratings, or neuroimaging of brain functionality, to improve the
ecological validity and add credibility to the research findings. These
improvements would allow researchers greater confidence to extrapolate
their findings to serious acts of aggression or violence, like seen in the