“…as a dependent measure in assessing the success of instruction (Seymour & Sutman, 1973;Macbeth, 1974;Wideen, 1975) and researched students abilities in using the processes of observation (Allen, 1971 ;Tomera, 1974aTomera, , 1974bZeitler, 1972)' inference and verification (Moliter & George, 1976)' hypothesis formulation (Pouler, 1980)' prediction (Theil & George, 1976), and classification (Allen, 1970;Chiapetta & Collette, 1975;Jacobs & Vandevanter, 1971;Johnson, 1973;Levin & Zipora, 1980;Lowell, 1979Lowell, , 1980Norwak, 1969;Popp & Raven, 1972).…”