Chapter 2 - Part 4.pdf - PSYC 2013(Summer 2015 Escobar...

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PSYC 2013 (Summer 2015, Escobar) Chapter 2, part 4 Week 1 1 Psychological Science Chapter 2 (Part 4) Data Analysis and Evaluation 2.4   How   Are   Data   Analyzed   and   Evaluated? Learning   Objectives Identify   three   characteristics   that   reflect   the   quality   of   data. ib f l d d Describe   measures   of   central   tendency   and   variability. Describe   the   correlation   coefficient. Discuss   the   rationale   for   inferential   statistics. Good   Research   Requires   Valid,   Reliable,   and   Accurate   Data Construct   validity:   the   extent   to   which   variables   measure   what   they   are   supposed   to   measure Chemistry   questions Good   Research   Requires   Valid,   Reliable,   and   Accurate   Data Reliability:   the   degree   to   which   a   measure   is   stable   and   consistent   over   time Accuracy:   the   degree   to   which   an   experimental  
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