Precontact

the precontact period

Precontacts may be less effective with homogeneous groups than with samples involving the general population.

Reviewing 12 studies of precontacting or advance notice to respondents, Linsky (1975) concluded that all precontacts by letter, postcard, telephone, or earlier personal contact increased response rates, with the telephone precontact being the most effective.

Reviewing 12 studies of precontacting or advance notice to respondents, Linsky (1975) concluded that all precontacts by letter, postcard, telephone, or earlier personal contact increased response rates, with the telephone precontact being the most effective.