psych 5-ucsb-fall 2011-lecture-chapter5

psych 5-ucsb-fall 2011-lecture-chapter5 - Review Z-scores...

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Unformatted text preview: Review Z-scores (Chapter 5) Determining the location of a score within a distribution Working with standardized distributions & z- scores Transforming distributions 1.What is the difference between an independent and dependent variable? 2.What are the different scales of measurement? 3.What are the different measures of central tendency? 4.What is 1 strength and 1 weakness of each measure of central tendency? 5.What are the degrees of freedom and when do you use them? Kanuck Female, black lab, 10 years old Weight = 50 lbs Labrador Retrievers Mean weight=65 std dev = 10 Working dogs Mean weight = 65 std. dev. = 20 W h e r e d o e s K a n u c k f t i n t h e s e d i s t r i b u t i o n s ? 6 5 6 5 = 2 = 1 5 5 4 5 5 5 K a n u c k = 5 l b s L a b r a d o r s ( = 6 5 , = 1 ) W o r k i n g ( = 6 5 , = 2 ) A n i n d i v i d u a l s c o r e b y i t s e l f d o e s n o t p r o v i d e m u c h i n f o r m a t i o n a b o u t i t s p o s i t i o n w i t h i n t h e d i s t r i b u t i o n H o w d o w e a d d r e s s t h i s i s s u e ? S t a n d a r d i z e t h e d i s t r i b u t i o n o f s c o r e s T h e i n d i v i d u a l s t a n d a r d i z e d s c o r e s a r e c a l l e d z- s c o r e s a n d t h e d i s t r i b u t i o n i s a z- d i s t r i b u t i o n T r a n s f o r m i n g t o a...
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psych 5-ucsb-fall 2011-lecture-chapter5 - Review Z-scores...

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