Savage-Rumbaugh Et Al 0.0 / 5 ? PsychologyCore studiesASAQA Created by: jatyizationCreated on: 10-02-14 15:38 Savage-Rumbaugh Et Al Savage-Rumbaugh Language acuisition in pgymy chimpanzees 1 of 7 Participants Participants 2 Pygym chimpanzees (Kanzi and Mulika) 2 common chimpanzees (Sherman and Austin) 2 of 7 Method Method Longlitudinal study Quasi (IV=comparing species / DV= language aquistion) Medium of communiction: lexigram pointing board modelling approach rather than formal training 3 of 7 Data Recorded Data Recorded Kani = All lexigram utterances recorded for 17 months Mulika = all lexigram utternaces reocrded for 10 months Utterances described as: 1 corerct 2 spontaneous/limited/structured Aquistions Criteria - Utternaces must: Be appropriate appear spontaneously 9 out of 10 times demonstrate concordance 9 out of 10 times Observer rating checked: 100% agreement 4 of 7 Results Results Kanzi and Mulika: comprehend lexigrams more easily and more spontaneously without training than Sherman and Austin more able to comprehend english spoken words Used lexigram more specifically Kanzi was able to refer to requests involving others, than benefitted others, unlike sherman and austin 5 of 7 Conclusions Conculsions Pygym chimpanzees exhibit symbolic and auditory percepital skills that are different from common chimpanzees Suprising as the 2 species are so closely related 6 of 7 Evaluation Evalutaion Ethical Issues: chimpanzees in human environment Longlitudinal study: Development can be measured and data is in-depth High in ecological validity as Kanzi could roam around 55 acre sit Small sample: hard to generalize = may not be representative Quantitative data used 7 of 7
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