Question

1.how to know if the data in the paper is observational data or natural experiment or...

1.how to know if the data in the paper is observational data or natural experiment or data from a controlled experiment? if latter , how to know if it is a lab, social or field experiment

2. how to classify if the data is panel/time series/ cross sectional

I am writting a summary of research papers that I found for statistics relate to a economic question, and i got stuck on this part

Homework Answers

Answer #1

1. Read the variable name and check if they were collected in course of an experiment or collected as they occur. Check for suffix or Prefix like "Pre" , "Post". Check whether are collected at  some frequency. Figure-out , if such data collected relates to incidence that could be created by an individual, controlled by an individual or performed by an individual. Figure-out, if there is some hypothesis for which the data were collected or science experiment that is being supported.

2. If there is one variable for which the data is recorded at periodic interval and the data is with time stamp, then that data is time-series data. It can be weekly data, fortnightly data, monthly, quarterly, semi-annual or annual data.

If there is one time stamp and there are many variables for which data is being recorded, then that data is cross-sectional data. That menas when data across different parameters are obtained at a given time, then data is cross-sectional data

When there are many variables for which data is collected over time over a long period of time, the data is panel data. Thus, panel data is time-series data + cross-sectional data.

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