AbstractEvolutionary psychology suggests that women and men differ in their mating strategies. We operationalized a central claim of evolutionary psychology by manipulating social status of profiles at a dating website: one group of profiles was depicted with a luxury sports car (high status) and second group without car (low status). Six profile were set up (3 female, 3 male) for each of the two groups. Two type of response variables were collected: Whether a "match" occurred (n=3515), and whether a message was sent to the profile (n=1548). Beauty and hip-waist-ratio of straw persons, and age of contacting individuals were recorded. Given strong effect sizes, large sample size, and high interest in human mating, this data set should be of interest for applied researchers in human mating and social psychology.
A central claim of evolutionary psychology is that social status has a positive impact on female mating strategy; men exhibiting higher social status are expected to attract more women compared to men with lower social status (Buss 2015). Social status can be defined as the relative social position an individual is perceived to possess; social status refers to the estimation or status attributed to this position (Coie, Dodge, and Coppotelli 1982). The variety of social status indicators includes income, wealth, social power, social esteem of a social role, or educational level. These effects are well known and widely replicated (Buss et al. 2001).
It has been noted that social status, and particularly wealth, is not only for present times and western women a central mating criterion; this preference has been documented in non-western cultures and different times as well. For example, between 1984 and 1989, Buss and colleagues investigated more than 30 cultures around the globe regarding mating preferences. In sum, approx. 10,000 individuals were included in the study, stemming from six continents (Buss et al. 1990; Buss 1989). Results suggest the importance of male financial situation for women's mating decisions is an intercultural constant.
The theoretical basis for this behavior is theorized as stemming from the different biological fabric of the sexes. In all mammals, males produce much more sperms than female produce ova. Thus, there should be an incentive for females to prefer males with an outlook of secure breeding of the offspring. Social status and in particular financial wealth are widely viewed as predictors of such reproductive success (Buss 2009; Buss 2015). It should be noted that evolution theory suggests that (mating) mechanisms which are active in inter- or intra-sexual selection have developed in extensive time spans, and cannot quickly accommodate to recent environmental changes, e.g. those of modern human culture. This fact may explain why some strategies appear maladaptive for modern life.
Similarly, it has been suggested that women should prefer men who are slightly older then themselves (Buss 2015). This can be explained by the fact than older men normally possess higher social status (e.g. income) compared to younger men. The present data set allows for testing this hypothesis too.
Apart from social status, physical attractiveness has been proposed as an important (positive) predictor for mating success. One explanation for the relevance of beauty is that beauty may be indicative of health (Shackelford and Larsen 1997; Grammer and Thornhill 1994). Thus, more attractive individuals should attract more partners; this is expected for both sexes, but is maybe more pronounced in the selection process of men (Buss 2015; Abramson 1995). One widely used measure for attractiveness and reproductive outlook is the waist-hip-ratio (Streeter and McBurney 2003; Singh and Young 1995). The present data allow for testing the impact of beauty of mating success.
The sample consists of 3515 matches and 1515 messages; in sum, this behavior originated from n = 1920 individuals in total. There are no missings in the data, as all data were collected electronically. Data are anonymized using a hash mechanism (sha256). Mean age was 29.5 years (sd = 5.0 years). Six straw persons were included in the study, each with a profile with luxury car (high status), and without car (low status), yielding a total of 12 profiles on the dating portal. Of all matches, 3205 (91%) were sent to one of the 6 female profiles; of all messages sent, 310 (98%) were sent to a female profile. It should be noted that participants were matched to the experimental factor by chance alone; the allocation was not counterbalanced in any way due to technical/practical constraints of the dating portal. Data was collected between 2015-01-05 and 2016-01-20.
The main stimulus was the profile picture. Between the two groups of the experimental factor ("car"), the only difference was whether the luxury car (BMW Z4) was present or not (i.e., high vs. low status). To better control for idiosyncrasies of the straw person (eg. attractiveness), 3 different straw persons of each sex were included. Theses six individuals differed in their subjective attractiveness as judged by a rating committee of five persons on a scale from 1 to 10 (M = 5.8; sd = 1.2) and in their waist-hip-ratio (whr; female: M = 0.71; sd = 0.02; male M = 0.91; sd = 0.02). For reasons of personal rights and privacy, pictures of the straw persons are not made public.
For the names of each straw person, typical German names were chosen (female: "Julia"; men: "Christian"). Year of birth was documented as 1987 for each straw person. No family names were shown. As location, "München" (Germany) was specified. In order to make the profiles of the straw persons more realistic, some typical hobbies were filled in: TV series, music, sports, telephoning with friends.
The profiles were setup at one of the largest online dating portals (Germany version) with more than 300 million users (as of Aug. 2016).
The dating portal allowed for checking for "matches", defined were both individuals judge their counterpart as "interesting" thereby communicating principal interest in further interaction. For each of the 12 profiles, we judged the first 600 user profiles that were suggested by the portal as "interesting". Each of our profiles was online for one week (no overlaps between the two groups). No further contact was undertaken with the individuals contacting our straw persons; in particular, we did not respond to any matching or contact message.
Data was collected electronically by the portal, so it can be expected that no typos or similar errors are present in the data. We performed some "sanity checks", e.g. checked whether all values are plausible. Finally, we checked that the anonymization had worked. No errors or quality restrictions were identified.
This study was part of a MSc thesis, and was approved by the supervising professor (disclaimer: the supervising professor is one of the authors). As we did not engage in any contact with the individuals contacting our straw persons it appears unlikely that strong emotions and strong negative affect occurred. We did not receive any signs of discontent from the participants. No further debriefing took place. We declare that we have no conflicts of interest.
primary data (anonymized)
5063 observations of 9 variables. See codebook for details.
The data set allows for testing (replicating) some of the main claims of evolutionary psychology with regard to human mating. The results of the present data have not been published yet; given the strong effects, the large sample size and the high overall interest in evolutionary psychology in general and human mating in particular, this data set can be expected to be of substantial interest. Additional, refined analysis, aggregation to existing bodies of data, and teaching (due to the general "lay" interest) are included in potential reuses of this data set.
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———. 2015. Evolutionary Psychology: The New Science of the Mind. Psychology Press.
Buss, David M, Max Abbott, Alois Angleitner, Armen Asherian, Angela Biaggio, Angel Blanco-Villasenor, M Bruchon-Schweitzer, et al. 1990. “International Preferences in Selecting Mates a Study of 37 Cultures.” Journal of Cross-Cultural Psychology 21 (1). Sage Publications: 5–47.
Buss, David M, Todd K Shackelford, Lee A Kirkpatrick, and Randy J Larsen. 2001. “A Half Century of Mate Preferences: The Cultural Evolution of Values.” Journal of Marriage and Family 63 (2). Wiley Online Library: 491–503.
Coie, John D, Kenneth A Dodge, and Heide Coppotelli. 1982. “Dimensions and Types of Social Status: A Cross-Age Perspective.” Developmental Psychology 18 (4). American Psychological Association: 557.
Grammer, Karl, and Randy Thornhill. 1994. “Human (Homo Sapiens) Facial Attractiveness and Sexual Selection: The Role of Symmetry and Averageness.” Journal of Comparative Psychology 108 (3). American Psychological Association: 233.
Shackelford, Todd K, and Randy J Larsen. 1997. “Facial Asymmetry as an Indicator of Psychological, Emotional, and Physiological Distress.” Journal of Personality and Social Psychology 72 (2). American Psychological Association: 456.
Singh, Devendra, and Robert K Young. 1995. “Body Weight, Waist-to-Hip Ratio, Breasts, and Hips: Role in Judgments of Female Attractiveness and Desirability for Relationships.” Ethology and Sociobiology 16 (6). Elsevier: 483–507.
Streeter, Sybil A, and Donald H McBurney. 2003. “Waist–hip Ratio and Attractiveness: New Evidence and a Critique of a Critical Test.” Evolution and Human Behavior 24 (2). Elsevier: 88–98.
Showing 1 Reviews
The research results of
Evolutionary Psychology with regard to different mating strategies
subject to sex are promising for example for Social Psychology.
Therefore empirical data sets are necessary and welcome.
The present study offers reactions of 1920 individuals.
The data are collected
with the aid of six fictitious profiles on a dating website. Three
profiles are female and three are male. The persons are shown in front
of a luxury sports car to suggest a high status
and without a car to suggest a low status.
From my point of view
some information is missing in order to answer questions of Evolutionary
Psychology. For example, the status of the persons who contacted the
fictitious profiles could give interesting answers
with regard to their own (monetary) status. In addition, whilst it is
possible that a luxury sports car could suggest a high status, the
seeming absence of such a vehicle (or indeed, any vehicle) would not
necessarily suggest the reverse. In fact, the absence
of a car may also suggest a sense of environmental responsibility, or
perhaps even humility. Therefore, more information for the viewer is
necessary in order to show that this person has a low status.
Finally the data base
is suitable for answering gender-specific questions about dating website
users and to develop continuative questions and hypothesis.
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