PSYC 3420 Chapter Notes - Chapter 7: Parental Investment, Child Abuse, Maternal Sensitivity

• School: York University
• Department: Psychology
• Course: PSYC 3420
• Professor: Irwin Silverman

Document Summary

Eggshell removal for safety; protected new chicks from edges; nest less noticeable. Alcock-father did nothing to protect; women do show more touch, love, contact, care: the paternity uncertainty hypothesis: Mothers are certain of genetic contribution, 50% genes. Males unsure, and doubt, some other guy may have fertilized. Uncertainty strongest in internal female fertilization-insects, human, mammals. Too costly to spend on children for men: the mating opportunity cost hypothesis: Mating opportunity costs missed additional mating as result of effort devoted to offspring; no new mates. Higher for females; hence less parental care from males. Male care should be rare when costs of missing new mates for males is high. Substitute parents will simply care less; invest less. Stepparents-53% stepfathers/25% stepmothers=claimed to have parental feelings to step children. Stepfather interaction were more aggressive, less frequent. Stepchildren found it more unpleasant and leave earlier than genetic children. Webster- stepmom=fathers next marriage; less care to children. Even cultural shows have stepmom killing stepchildren.