“…Some research found that CAI was effective in improving students' science achievement or their attitudes toward science (Chang, 2001a(Chang, , 2001b(Chang, , 2002Ferguson & Chapman, 1993;Levine, 1994;McCoy, 1991;Yalcinalp, Geban, & Ozkan, 1995). On the other hand, other researchers have found that the CAI approach has no significant effects on cognitive achievement or science learning (Morrell, 1992;Olugbemiro, 1991;Wainwright, 1989). Christmann, Badgett, and Lucking (1997) also reported a meta-analysis, comparing traditional instruction versus traditional instruction supplemented with CAI effects on the academic achievement of sixth graders through twelfth graders across eight curricular areas.…”