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Research Methods > Strand 2: Origin - Destination Flow Data > Flashcards

Strand 2: Origin - Destination Flow Data Flashcards

1
Q

What sort of data is Migration and Commuting classed as?

A

Flow Data/ Interaction Data/ Origin - Destination Statistics

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2
Q

From the Census what sort of data is available for various migration variables?

A
  1. Migrant
  2. Migrant Household
  3. Wholly Moving Household
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3
Q

What are the 2 types of data available from the 1991 Census about Interaction Data?

A
  1. Special Migration Statistics (SMS)

2. Special Workplace Statistics (SWS)

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4
Q

What are the 3 types of data available from the 2001/11 Census about Interaction Data?

A
  1. SMS for the UK
  2. SWS for ENG, WAL, NI
  3. Special Travel Statistics (STS) for SCOT, includes travel to place of study
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5
Q

What online system do you use to access SWS & SMS from the UK Data Service

A

WICID - Web-based Interface to the Census Interaction Data (91/01/11) - Also provides re-esimates

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6
Q

SMS is very useful but what problems does it face?

A

Preserving Confidentiality - ONS are reluctant to provide info and produce data where counts are very small

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7
Q

What was the ONS’ solution to confidentiality issues in 1991?

A

Suppression

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8
Q

What is Suppression?

A

The non publication of counts in certain tables

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9
Q

What was wrong with Suppression (1991)?

A
  1. Widespread
  2. Unnecessary
  3. Prevent Accurate Analysis
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10
Q

Who developed a method to ‘recover’ the suppressed data and have estimated ‘complete’ SMS matrices?

A

Rees and Duke-Williams (1997)

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11
Q

What is the most detailed and complete source of information on internal migration and immigration in the UK?

A

CENSUS

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12
Q

What method was used to prevent risk of disclosure in 2001?

A

Small Cell Adjustment Method (SCAM)

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13
Q

What is the Small Cell Adjustment Method? (SCAM)

A
  • In each table flow counts of 1 and 2 at any one level were adjusted to be 0 or 3
  • Meaning at any one level the flows in different tables will not be equal
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14
Q

What does the government use migration data for?

A

To produce mid-year population projections and estimates

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15
Q

What are other sources of Migration data?

A
  1. Labour Force Survey
  2. International passenger Survey
  3. National Health Service Central Registers (NHSCR)
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16
Q

What are other sources of commuting data?

A
  1. National Travel Survey
  2. Pupil Level Annual School Census
  3. Hospital Episode Statistics for patient journeys to hospitals
17
Q

What does the NHSCR provide?

A

Re-registration data: Records those who transfer their registration from a doctor in one area to a doctor in another

18
Q

What 6 attributes are available from NHSCR?

A
  1. Old Location
  2. New Location
  3. Age at migration
  4. Sex
  5. DoB
  6. Date at Migration
19
Q

What are the key characteristics of NHSCR?

A
  1. Migration measurement concept is different to the Census (Census = Transition Data, NHSCR = Movement or event data)
  2. Mulitple and return moves are included
  3. Different time plans are included
  4. NHSCR shows us variations
20
Q

What are 8 other measures of Migration?

A
  1. GROSS migration flows and intensities (rates)
  2. Migration Churn
  3. NET migration flow and intensities (rates)
  4. Indices of migration EFFICIENCY/ EFFECTIVENESS
  5. Indices of CONNECTIVITY
  6. Indices of CONCENTRATION
  7. Indices of INEQUALITY
  8. Spatial Interaction Modelling
21
Q

What is the International Passenger Survey (IPS)?

A

Thorough survey asked at all major airports, ferry ports and EuroStar locations to passengers travelling from abroad.
Asks about their length of stay, purpose etc.

22
Q

What did The Guardian (2014) report about the new e-Borders Immigration Programme?

A
  1. Inadequate as doesn’t say whether passengers are long-term migrants, visitors or just tourists
  2. Claim it doesn’t substitute the IPS even though the IPS is said to have some failings
  3. Should be used in conjunction with the IPS to estimate net-migration
23
Q

What are Flag 4 Records?

A

Reflects the number of people registering with a GP whose previous address was outside the UK and who have spent longer than 3 months living in the UK

24
Q

What are the limitations with Flag 4 Records?

A
  1. No indication of the delay between arrival and registration i.e. when they entered the UK
  2. No info. on patients who have left the UK
  3. Some don’t register with a GP at all, especially younger male economic migrants
  4. Flag 4 code not retained once a patient moves within the UK and registers with a new GP
  5. Age and gender recorded, but not nationality or place of birth
25
Q

What was the Worker Registration Scheme (WRS)?

A

All A8 migrants (migrants from the 8 countries that joined the EU in 2004) were required to register to the scheme in order to work in the UK.
However, no longer operates

Research Methods (17 decks)

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