“…20Purther individuals who support this correlation between achievement and self-concept are: Busby, Fillmer, & Smittle, 1974;Caplin, 1969;Caslyn & Kenny, 1977;Cole, 1974;Combs, 1964;Coopersmith, 1959;Covington & Beery, 1976;Pink, 1962;Gordon, 1977;LaBenne & Green, 1965;McIntire & Drummond, 1977;Primavera, Simon, & Primavera, 1974;Purkey, 1970;Rogers, Smith & Coleman, 1978, Roth, 1959Sears, 1970, Silvernail, 1981Simon & Simon, 1975;Smith, Zingale, & Coleman, 1978;Strang, Smith, & Rogers, 1978;Vereen, 1980;Williams & Cole, 1968;Zimmerman & Allebrand, 1965. While the literature's findings for these seven external independent variables are sometimes mixed, enough studies have found them to exert a significant influence upon a child's self-concept that ignoring the potential for their contaminating this study's self-concept findings would have been unscholarly. Consensus as to age influences upon a child's self-concept is not reached within the literature.…”