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Section 2 presents a direct proof and interpretation of the equivalence theorem for the general case of a concave criterion function. This has implications for iterative algorithms of the type suggested by Wynn, as indicated in Section 3. Section 4 is concerned with a characterization of D,-optimality as a criterion which preserves ranking of designs under certain transformations of the problem. Section 5 discusses quasi-linear representations of the criterion for c-optimality.<\/jats:p>","DOI":"10.1111\/j.2517-6161.1973.tb00944.x","type":"journal-article","created":{"date-parts":[[2018,12,7]],"date-time":"2018-12-07T06:44:21Z","timestamp":1544165061000},"page":"123-130","source":"Crossref","is-referenced-by-count":233,"title":["Some General Points in the Theory of Optimal Experimental Design"],"prefix":"10.1093","volume":"35","author":[{"given":"P.","family":"Whittle","sequence":"first","affiliation":[{"name":"University of Cambridge"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2018,12,5]]},"reference":[{"key":"2024090920471746300_rssb00944-cit-0001","doi-asserted-by":"crossref","first-page":"255","DOI":"10.1214\/aoms\/1177729442","article-title":"Optimum allocation in linear regression theory","volume":"23","author":"Elfving","year":"1952","journal-title":"Ann. Math. 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