[Study on the effectiveness of the "Berlin Letters for Seniors (author's transl)].
The effectiveness of the "Berlin Letters for Seniors" (LFS) will be tested by a longitudinal study. Two Measurement Points (MP) are scheduled: 1976 and 1978. The total sample (N = 3000) comprehends two subsamples of receivers and non-receivers. Data were/will be collected by a questionnaire. A preliminary analysis of the MP I data shows that the two subsamples are comparable as to demographic variables and relevant attitudes; so they may serve as experimental versus control group. An examination of what the readers' concept of the LFS was like, proved that though reservation was recognizable approval prevails.
[Study on the effectiveness of the "Berlin Letters for Seniors (author's transl)]. The effectiveness of the "Berlin Letters for Seniors" (LFS) will be tested by a longitudinal study. Two Measurement Points (MP) are scheduled: 1976 and 1978. The total sample (N = 3000) comprehends two subsamples of receivers and non-receivers. Data were/will be collected by a questionnaire. A preliminary analysis of the MP I data shows that the two subsamples are comparable as to demographic variables and relevant attitudes; so they may serve as experimental versus control group. An examination of what the readers' concept of the LFS was like, proved that though reservation was recognizable approval prevails.