Postal recruitment to a probability based web panel. Long term consequences for response rates, representativeness and costs. LORE working paper 2015:1

• This study evaluates the efficiency of postal recruitment strategies to a probability based web panel. An experimental set-up varied the use of incentives and reminders. The different strategies are evaluated in terms of recruitment rates, panel participation, panel attrition, costs and representativeness. The recruited respondents are followed over an eight wave panel study during two years to evaluate long term effects. The results show that even a very small lottery incentive leads to significantly higher (4-5 percentage points) recruitment rates. The incentives lead to lower costs per recruited panelist and slightly lower costs per responded survey also after eight panel waves. The representativeness improves with incentives in the first surveys but this difference disappears since attrition is somewhat higher among respondents that are more difficult to recruit to the panel. The reminder effects seem to be more robustly lasting over time than the effects from an incentive, and the cumulative response rate is significantly higher in the groups receiving reminders than in the groups who do not.

Ämnesord

SAMHÄLLSVETENSKAP  -- Statsvetenskap -- Statsvetenskap (hsv//swe)

SOCIAL SCIENCES  -- Political Science -- Political Science (hsv//eng)

NATURVETENSKAP  -- Matematik -- Sannolikhetsteori och statistik (hsv//swe)

NATURAL SCIENCES  -- Mathematics -- Probability Theory and Statistics (hsv//eng)

Nyckelord

recruitment

web panel

response rates

Publikations- och innehållstyp

vet (ämneskategori)

rap (ämneskategori)