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Field Experiment to test the existence of the Rehearsal Loop using interference with numbers Contents Page Introduction Background Rationale Aims Hypotheses Method Method & Design Variables Participants Apparatus Procedure Controls Results Summary Table Table Commentary Other Descriptive Statistics Commentary Relationship to Hypothesis Discussion Validity Improving Validity Reliability Improving Reliability Implications of Study Generalisation of Findings Application of Findings Conclusion References Appendix 1 Appendix 2 Introduction Background Research The experiment will be largely based upon that of Brown (1958) and Peterson & Peterson (1959), which used the technique of blocking rehearsal within the short term memory (STM) by tasks such as counting backwards. The two groups of researchers independently investigated the capacity of the STM using a technique which involved presenting subjects with trigrams, which are three letter syllables which make no sense, (for example HTK) for a short time and testing recall after a specific retention interval. Results showed that items are rapidly forgotten when the process of rehearsal is prevented by a task such as counting backwards. It was concluded by the two groups of researchers that information stayed in the STM, without...

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