Lecture2

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INTRODUCTION, DATA, AND VARIABLES LECTURE 2: DR. PABLO A. TRONCOSO UNIVERSITY OF HOUSTON 2023 FALL AUGUST 24, 2023
RECAP AND TODAY CLASS SELECION BIAS, CONFIRMATION BIAS, CAUSE EFFECT VS ASSOCIATION QUANTITATIVE: CONTINUOUS, DISCRETE, BINARY QUALITATIVE: ORDERED AND UNORDERED CATEGORICAL CROSS SECTIONAL, TIME SERIES, PANEL DATA EXPERIMENTAL VERSUS OBSERVATIONAL RECAP:DATA ANALYSIS IS BREAD AND BUTTER OF ECONOMISTS TODAY 1) DATA SET: UNIT OF ANALYSIS AND N OF OBSERVATIONS 2) TYPE OF VARIABLES 3) TYPE OF DATA 4) WHERE DOES THE DATA COME FROM? 5) POPULATION VERSUS SAMPLE 6) DESCRIPTIVE VERSUS INFERENTIAL STATISTICS 1
TYPES OF DATA AND TYPES OF VARIABLES GEORGE GALLUP WHO POPULARIZES THE IDEA OF AN OPINION POLL CAME UP WITH THE FOLLOWING ANALOGY DATA IS EVERYWHERE! "...IF YOU HAVE COOKED A LARGE PAN OF SOUP, YOU DO NOT NEED TO EAT IT ALL TO FIND OUT IF IT NEEDS MORE SEASONING. YOU CAN JUST TASTE A SPOONFUL, PROVIDED YOU HAVE GIVEN IT A GOOD STIR." (DAVID SPIEGELHALTER "THE ART OF STATISTICS") 2
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