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Reverse scoring and averaging

Reverse scoring and averaging - Psyc3000 Experimental...

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Psyc3000 – Experimental Methods & Design Reverse Scoring and Averaging Responses with SPSS Part 1: Reverse scoring 1) Insert your CD in the computer and open the file called “Aggression.sav.” This will automatically start SPSS and open a data grid containing responses to a 29-item questionnaire that measures the level of aggression in 20 participants who played or watched a violent videogame. The data were collected by Lisa Chipponeri, a former Psyc3000 student – just like you! Well, none of you are former Psyc3000 students (if you are, what are you doing here?), and Lisa looks different than you, and none of you are even named Lisa, but you know what I mean. 2) Responses to the 29 aggression items were made on a scale of 1 (strongly agree) to 5 (strongly disagree). For most of the items, highly aggressive participants should choose a response of 1. Examples include “Given enough provocation, I may hit another person,” and “If somebody hits me, I hit back.” However, q7 states “I can think of no good reason for ever hitting a person,” while q18 states “I am an even-tempered person.” For both of these
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