“…Through this process, we excluded 15 articles for the following reasons: Five articles were excluded because the primary focus of the study was not on science instruction (Bakken & Mastropieri, 1997; Espin & Deno, 1993; Kooy, 1992; Marino, Coyne, & Dunn, 2010; Nelson, Smith, & Dodd 1992). Eight articles were not analyzed because they did not meet initial requirements (Anderman, 1998; Carlisle & Chang, 1996; Cawley, Hayden, Cade, & Baker–Kroczynski, 2002; Gaddy, Bakken, & Fulk, 2008; McFarland & Shepard, 1995; Parmar, Duluca, & Janczak, 1994; Scruggs & Mastropieri, 1994; and Shepard & Adjogah, 1994). One article was excluded because it summarized three studies already included in the review (Mastropieri, Scruggs, & Magnusen, 1999).…”