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SEXUAL STRATEGIES THEORY THEMES
Men engage in STM as a primary reproductive strategy when they are young and their mate value is high. They settle down into LTM relationships when they are older. Women engage in LTM as a primary reproductive strategy when they are young and their mate value is high, but have STM (af…
Gender Differences in Mating- Investment in Mating
—Reproduction -Men produce 12 million sperm per hour -Women produce 400 ova over a lifetime —Offspring -Males: potential for minimal investment -Females: potential for 9 months AND much longer
Parental Investment Theory (Trivers, 1972)
Sex that invests more (females) in offspring will be more selective in mating. Sex that invests less in offspring (males) will be more competitive for access to the higher-investing sex. -- In LTM, women should be adapted to look for males with high mate value (but men want high value…
WOMEN’S MATE PREFERENCES-selecting a mate that is able to invest
volved Preferences: -—Good financial prospects —-Social status Cues: -—Older —-Financial Cues —-Ambition
Evidence for Selecting a mate that is able to invest
Able to invest Good financial prospects -—Rated on a scale from 0 (irrelevant) to 3 (indispensable) 1939- women rated 1.80, Men .90 1985- women rated 1.90, Men 1.02 1996- women rated 1.99, Men 1.42 Older Men -—Marriage ~ Women marry men who are 3.42 years older…
Women's Mate Preference 2- selecting a mate that is willing to invest
Evolved Preferences: -—Dependability —-Love Cues: -—Reliable, predictable —-Commitment
Evidence for selecting a mate that is willing to invest
Love and commitment -—Sprecher et al. (1994) ~ 89 % of American women require it ~ 82 % of Japanese women require it Dependability —-Buss et al. (1990) ~ 37 cultures ~ Rated on a scale from 0 (irrelevant) to 3 (indispensable) ~ Across all cultures women rated as 2…
Women's Mate Preference- selecting a mate that is able to physically protect self and children
Evolved Preferences: -—Strength —-Bravery Cues: -—Height —-Athletic ability
Evidence for selecting a mate that is able to physically protect self and children
Height -—Marriage Women prefer marriage partners to be 5’11’’ Taller men more desirable than shorter men (Ellis, 1992) -—Personal ads 80% women want men 6’0” or taller (Cameron et al., 1978) Taller men - more responses (Lynn & Shurgot, 1984) Athletic Ability -—Ma…
Women's Mate Preference- selecting a good parent
Evolved Preferences: -—Kindness —-Emotional Stability Cues: -—Positive Interactions with children
Evidence fo selecting a good parent
La Cerra (1994) -—240 women rated pictures on attractiveness as: Date Sexual partner Marriage partner Friend Neighbor La Cerra (1994) -—Findings: Man interacting with an 18 mo.-old child -—Ranked highest 2.75 Man ignoring a crying child — …
Women's Mate Preference- selecting a mate who is compatible
Evolved Preferences: -—Similar attitude —-Similar personality — Cues: -—Finding similarities
Evidence for selecting a mate who is compatible
Personality -—Husbands and wives with similar personality characteristics report greater marital satisfaction (Richard, Wakefield, Lewak, 1990) Attitudes -—Potential mates with similar attitudes rated higher on likability (Lehr & Geher, 2006)
Women's Mate Preference- selecting a mate who is healthy
Evolved Preferences: — -Physical Attractiveness — Cues: -—Symmetry
Evidence for selecting a mate who is healthy
Symmetry indicates: -—Physiological health — -Psychological health More symmetrical men have: -—More lifetime sexual partners — -Less investment in LTM -—More aggression in intrasexual competition — -Cues (other than visual): ~Voice ~Smell
The Power Of Ovulation
Women are more attracted to “better” mates during ovulation -—More symmetrical — -Show greater male-male dominance — -Genetically dissimilar (aka variation) Oral contraceptives disrupt this relationship Do oral contraceptives influence a woman’s ability to: — -Be attracted t…
Men and Commitment
Low parental investment allows: — -Increased benefits from short-term mating So why do men choose to commit? — -Women require it — -Increase in women’s mate quality — -Increase in offspring’s chance for survival — -Increase in paternity certainty
Men's Preference- selecting a mate who will have children
Evolved preferences: -—Fertility ~Number of children a person has actually had ~Likelihood of conceiving now ~More preferred in STM — -Reproductive value ~Number of children a person of a given age or sex is likely to have in the future ~More preferr…
Evidence for selecting a mate who will have children
YOUTH Men prefer women ~2.4 years younger In LTM, age is not as important as reproductive value BEAUTY Physical cues -clear, smooth skin/clear eyes/lustrous, long hair/good muscle tone/waist hip ratio Behavioral Cues -youthful gait/animated facial expressions/high energy level …
Evidence for selecting a mate who will have children (continued)
OVULATION Men have evolved to detect ovulation: -—Skin glows, becomes vascularized — -Skin lightens -—WHR decreases (estrogen) -—Sexual desire increases Women with these cues are touched more often by men -in bars -by husbands **Women are more likely to provide more r…

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