Examines issues associated with the design of and statistical inferences from embedded experiments which vary the questionnaire content into sample surveys of broad populations. Provides an example of context effects in attitude surveys, a summary, and conclusions. (RT)

Critically examines a study reporting that children who had attended infant and preschool programs had significantly higher rates of meeting school requirements than did controls, and that IQ measures taken on the same subjects showed large initial gains which vanished five years after preschool completion. Includes rebuttal by original…

Discussed is wavelet theory, which provides ways to rearrange data to reveal features of a physical or mathematical system which might otherwise be hidden. This theory is compared to fourier analysis and the advantages of wavelet theory are stressed. Applications of this technique are suggested. (CW)