research methods: meta analysis

Question 1

meta analysis?

Answer 1

researcher looks at findings from number of different studies and produces a statistic to measure overall effect

Question 2

effect size?

Answer 2

this technique produces an effect size of the dv in order to assess overall trends

Question 3

examples of meta analysis?

Answer 3

kohnken et al: cognitive interview vs standard police interviews
anderson et al: correlational, experimental and longitudinal research into video game violence linkes to aggression

Question 4

strengths?

Answer 4

cheap,
quick to collect data,
can see trends,
minimise anomalies,

Question 5

weaknesses?

Answer 5

not truly comparable,
conclusions not always valid,
takes time to analyse