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Abstract The experiment aimed to discover if real words actually could be used to cause a McGurk effect. Easton and Basala (1982) claimed the McGurk effect probably wouldn’t materialise using recognised words instead of motherese. Pisoni and Luce (1986) concluded that the McGurk effect was due to a simple bias effect. The experimental design was a repeated-measure and used a voluntary sample of 12 participants. Audio and audio-visual plus audio stimuli were both presented 66 times using a tape recording alone or partnered with a person miming a word for the two conditions. These conditions were counterbalanced. The phrase presented was either recognised as oh dear or oh beer. There were eleven variations of the phrase with each only being presented six times. These variations were produced through mixing beer and dear using a wavelength editor. Before the tape was made all the mixed and not mixed phrases were randomised to guard against order effects. It was believed that audio-visual stimulus had a strong influence on speech perception. This hypothesis was statistically supported by p. < 0.001. Both the theories mentioned above were supported through analysis of the data leading to the belief that the McGurk effe