The reference interview

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Presentation transcript:

The reference interview Data Discovery The reference interview

The reference interview Always begin by clarifying the distinction between statistics and data with your patron. Never assume that the patron clearly knows this distinction. Asking them if they want statistics or data isn’t a good starting question, though. Ask a question that will help you understand what they might be seeking using the “frameworks” understanding of data sources...

Frameworks Table Dimensions: Geography Time Subject content

The reference interview What does the patron intend to do with the numbers? What is their objective? Include a statistic or two in a report? Analyze data? What geographic area is needed? What is the smallest geographic area to be described? What time period is needed? What subject matter (variables) expressed in numbers is needed?

The reference interview If you determine the patron does need data: Determine what population (unit of observation) they want to describe. Do they need aggregate data or microdata? Do they need spatial data? What software does the patron intend to use? How would the patron like the data delivered?

Level of service How much you do depends on the level of service you are offering. Finding a resource Retrieving a resource from an online service Tailoring a product for the patron Creating a product for a patron (e.g., postal code conversion linkage)

Does the person want one number? Are they pursuing a fact or figure? Want to know “how many?” Statistics in print or ready-ref. electronic source? YES YES Go to print or ready ref. electronic source. Now we know enough to take a first look at the reference interview. Flow chart showing decisions making points. Statistical question Fact There is a statistical source statistical abstract volume of census publication

Does the person want one number? Are they pursuing a fact or figure? Want to know “how many?” YES Statistics in print or ready-ref. electronic source? Are the data accessible in computer-readable form? NO YES Go to computer-readable source. YES Go to print or ready ref. electronic source. But if no statistical publication exists… it might be possible to extract the statistics from a data file…. We’re going to going to leave the reference question part 1 for long enough to look at some data and how one might handle a statistics question with a datafile. Extract relevant data from computer-readable source and compile statistics using appropriate software.