Angela
Elite member
- Messages
- 21,823
- Reaction score
- 12,329
- Points
- 113
- Ethnic group
- Italian
See:
"In an impressive new study, Zell, Krizan, and Teeter (2015) reviewed 100s of past research findings and came to the conclusion that men and women are not very different psychologically. They came to this conclusion using a form of meta-analysis called "metasynthesis."
"Meta-analysis is extremely useful for determining if, and by how much, men and women actually differ. Any single research study probably misses the mark at least a little bit in estimating the “true” size of psychological sex differences. Meta-analysis, in contrast, is when researchers simultaneously look across many studies and estimate the overall sex difference quantitatively, often expressed in terms of a “d” metric. A positive d value such as +0.50 typically indicates men are moderately higher on a psychological measure, a negative value like -0.50 indicates women are moderately higher. Below are some dvalues of varying strengths that have been observed in studies on human sex differences."
I'm not sure that I agree with their conclusion. Some of these look rather significant to me, although some of them are not a matter of "psychology". Still, I get their point that there is overlap.
"A d value of -0.20 has been observed for sex differences in trust (Feingold, 1994). The size of this sex difference is considered “small” and indicates 58% of women are higher than average man in trust (based on Cohen's U3).A d value of +0.50 has been observed for sex differences in spatial rotation skills (Silverman et al., 2007). The size of this sex difference is considered “moderate” and indicates 69% of men are higher than average woman in spatial rotation skills.
A d value of +0.80 has been observed for sex differences in physical aggression (Archer, 2004). The size of this sex difference is considered “large” and indicates 79% of men are higher than average woman in physical aggression.
A d value of -1.00 has been observed for sex differences in tender-mindedness (Feingold, 1994). The size of this sex difference indicates 84% of women are higher than average man in tender-mindedness.
A d value of +2.00 has been observed for sex differences in throwing distance among children (Thomas & French, 1985). The size of this sex difference indicates 98% of boys throw farther than the average girl."
"In an impressive new study, Zell, Krizan, and Teeter (2015) reviewed 100s of past research findings and came to the conclusion that men and women are not very different psychologically. They came to this conclusion using a form of meta-analysis called "metasynthesis."
"Meta-analysis is extremely useful for determining if, and by how much, men and women actually differ. Any single research study probably misses the mark at least a little bit in estimating the “true” size of psychological sex differences. Meta-analysis, in contrast, is when researchers simultaneously look across many studies and estimate the overall sex difference quantitatively, often expressed in terms of a “d” metric. A positive d value such as +0.50 typically indicates men are moderately higher on a psychological measure, a negative value like -0.50 indicates women are moderately higher. Below are some dvalues of varying strengths that have been observed in studies on human sex differences."
I'm not sure that I agree with their conclusion. Some of these look rather significant to me, although some of them are not a matter of "psychology". Still, I get their point that there is overlap.
"A d value of -0.20 has been observed for sex differences in trust (Feingold, 1994). The size of this sex difference is considered “small” and indicates 58% of women are higher than average man in trust (based on Cohen's U3).A d value of +0.50 has been observed for sex differences in spatial rotation skills (Silverman et al., 2007). The size of this sex difference is considered “moderate” and indicates 69% of men are higher than average woman in spatial rotation skills.
A d value of +0.80 has been observed for sex differences in physical aggression (Archer, 2004). The size of this sex difference is considered “large” and indicates 79% of men are higher than average woman in physical aggression.
A d value of -1.00 has been observed for sex differences in tender-mindedness (Feingold, 1994). The size of this sex difference indicates 84% of women are higher than average man in tender-mindedness.
A d value of +2.00 has been observed for sex differences in throwing distance among children (Thomas & French, 1985). The size of this sex difference indicates 98% of boys throw farther than the average girl."