Child Development 133 (03, 04,
72, 73 & 74)
Research Methods in Human Development

Hembree            Spring, 2013

 

Descriptive Statistics

I.  Describing and summarizing data (descriptive statistics)

A. Introduction

  • What are statistics?  

 

 

 

 

  • Descriptive vs. Inferential statistics

 

 

 

 

   

B. Pictorial representations  

  • frequency distributions

 

 

 

 

  • frequency histograms/bar graphs

 

 

 

 

 

  • frequency polygons

 

 

 

 

C.  Central tendency

      mean 

 

 

      median 

 

 

      mode

   

 

Discussion

 

 

 

 

D. Variance (review) and standard deviation

 

 

 

 

 

E. The normal curve and z scores

 

 

 

 

 

  

 

Send problems, comments or suggestions to: hembrees@csus.edu

California State University, Sacramento

College of Education

Department of Child Development

Updated: January 25, 2013

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