1. Slide 12.8 Carlson, Martin and Buskist, Psychology, 2 nd European edition © Pearson Education Limited 2006 Conservation

2. Slide 12.9 Carlson, Martin and Buskist, Psychology, 2 nd European edition © Pearson Education Limited 2006 Various tests of conservation Source: Lefrancois, G.R., Of Children: An introduction to child development (4th edition). © 1983, reprinted with permission of Wadsworth, a division of Thomson Learning: www.thomsonrights.com, fax 800 730–2215.

3. Slide 12.10 Carlson, Martin and Buskist, Psychology, 2 nd European edition © Pearson Education Limited 2006 Cognitive performance from childhood to adulthood Source: Adapted from Krail, R., Developmental functions for speeds of cognitive processes. Journal of Experimental Child Psychology, 1988, 45, 361. Copyright 1988, with permission from Elsevier.

4. Slide 12.11 Carlson, Martin and Buskist, Psychology, 2 nd European edition © Pearson Education Limited 2006 Piaget’s stages of moral development

5. Slide 12.12 Carlson, Martin and Buskist, Psychology, 2 nd European edition © Pearson Education Limited 2006 Kohlberg’s stages of moral development

6. Slide 12.13 Carlson, Martin and Buskist, Psychology, 2 nd European edition © Pearson Education Limited 2006 Damon’s model of distributive justice

7. Slide 12.14 Carlson, Martin and Buskist, Psychology, 2 nd European edition © Pearson Education Limited 2006 Sexual maturation

8. Slide 12.15 Carlson, Martin and Buskist, Psychology, 2 nd European edition © Pearson Education Limited 2006 Girls’ actual body weight against their preferred body weight Source: Crisp, A., Sedgwick, P., Halek, C., Joughin, N. and Humphrey, H., Why may girls persist in smoking? Journal of Adolescence, 1999, 22, 657–672. Copyright 1999, with permission from Elsevier.