Hakan Cetinkaya
Biographic Data
| ID | 98245 |
|---|---|
| NAME | Hakan Cetinkaya |
| GIVEN NAMES | Hakan |
| FAMILY NAME | Cetinkaya |
| SIGNATURE | CETINKAYA H |
| AFFILIATIONS | Yaşar University |
| ORCID | 0000-0001-5585-8678 |
| VERIFIED | Yes |
| TOTAL WORKS | 23 |
| TOTAL CITATIONS | 33 |
| AUTHOR COUNT | 23 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2011 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 3 |
Sociosexual orientation, life history strategy, and reproductive success: A large-scale cross-cultural analysis across 92 contemporary societies
Real-world object size as a magnitude dimension: Robust perceived size distance effects and context-sensitive spatial coding
Mortality salience shifts moral judgment: Reproductive motivations override normative defenses in males
Space-magnitude associations modulate the familiar-size stroop effect in visual size judgments
SNARC effect in a transfer paradigm: Long-lasting effects of stimulus-response compatibility practices
Investigating No SNARC: Do Reading Habits Provide Insight into the SNARC Patterns of Turkish Sample
The mental number line ( MNL ) represents numbers spatially, with smaller numbers on the left and larger numbers on the right, as demonstrated by the SNARC effect. This effect is influenced by reading direction, with left-to-right languages (e.g., English) showing a stronger SNARC effect compared to right-to-left languages (e.g., Hebrew). However, previous research has shown the absence of SNARC in Turkish samples, despite a left-to-right reading…
The function of love: A signaling-to-alternatives account of the commitment device hypothesis
Exploring Attitudes Toward “Sugar Relationships” Across 87 Countries: A Global Perspective on Exchanges of Resources for Sex and Companionship
The current study investigates attitudes toward one form of sex for resources: the so-called sugar relationships, which often involve exchanges of resources for sex and/or companionship. The present study examined associations among attitudes toward sugar relationships and relevant variables (e.g., sex, sociosexuality, gender inequality, parasitic exposure) in 69,924 participants across 87 countries. Two self-report measures of Acceptance of Suga…
Validation of the Short Version (TLS-15) of the Triangular Love Scale (TLS-45) across 37 Languages
Love is a phenomenon that occurs across the world and affects many aspects of human life, including the choice of, and process of bonding with, a romantic partner. Thus, developing a reliable and valid measure of love experiences is crucial. One of the most popular tools to quantify love is Sternberg’s 45-item Triangular Love Scale (TLS-45), which measures three love components: intimacy, passion, and commitment. However, our literature review re…
Love as a Commitment Device: Evidence from a Cross-Cultural Study across 90 Countries
Given the ubiquitous nature of love, numerous theories have been proposed to explain its existence. One such theory refers to love as a commitment device, suggesting that romantic love evolved to foster commitment between partners and enhance their reproductive success. In the present study, we investigated this hypothesis using a large-scale sample of 86,310 individual responses collected across 90 countries. If romantic love is universally perc…
Conservatism Negatively Predicts Creativity: A Study Across 28 Countries
Previous studies have found a negative relationship between creativity and conservatism. However, as these studies were mostly conducted on samples of homogeneous nationality, the generalizability of the effect across different cultures is unknown. We addressed this gap by conducting a study in 28 countries. Based on the notion that attitudes can be shaped by both environmental and ecological factors, we hypothesized that parasite stress can also…
Otizm Spektrum Bozukluğuna Genel Bir Bakış
Özel Eğitim Hizmetleri Yönetmeliği'nde (2006) erken yaşta semptomlara sahip olan toplumsal etkileşim ve iletişim sınırlılığı bulunan, sözel
Covid-19 and Social Distancing: A Cross-Cultural Study of Interpersonal Distance Preferences and Touch Behaviors Before and During the Pandemic
The COVID-19 pandemic has led to the introduction of unprecedented safety measures, one of them being physical distancing recommendations. Here, we assessed whether the pandemic has led to long-term effects on two important physical distancing aspects, namely interpersonal distance preferences and interpersonal touch behaviors. We analyzed nearly 14,000 individual cases from two large, cross-cultural surveys – the first conducted 2 years prior to…
Increase in physiological inhibitory control results in better suppression of unwanted memories
Forgetting or suppressing a memory with unwanted content is just as important as remembering a desirable one. In addition to emphasizing the role of inhibitory control in memory suppression processes, neuropsychological studies have indicated that an intentional inhibition targeting a brain area may exert its inhibitory effects in seemingly unrelated areas through a common inhibitory network. In this study, we aimed to investigate whether the sup…
Predictors of enhancing human physical attractiveness: Data from 93 countries
People across the world and throughout history have gone to great lengths to enhance their physical appearance. Evolutionary psychologists and ethologists have largely attempted to explain this phenomenon via mating preferences and strategies. Here, we test one of the most popular evolutionary hypotheses for beauty-enhancing behaviors, drawn from mating market and parasite stress perspectives, in a large cross-cultural sample. We also test hypoth…
Affective Interpersonal Touch in Close Relationships: A Cross-Cultural Perspective
Interpersonal touch behavior differs across cultures, yet no study to date has systematically tested for cultural variation in affective touch, nor examined the factors that might account for this variability. Here, over 14,000 individuals from 45 countries were asked whether they embraced, stroked, kissed, or hugged their partner, friends, and youngest child during the week preceding the study. We then examined a range of hypothesized individual…
Sex Differences in Mate Preferences Across 45 Countries: A Large-Scale Replication
Considerable research has examined human mate preferences across cultures, finding universal sex differences in preferences for attractiveness and resources as well as sources of systematic cultural variation. Two competing perspectives—an evolutionary psychological perspective and a biosocial role perspective—offer alternative explanations for these findings. However, the original data on which each perspective relies are decades old, and the li…
Universality of the Triangular Theory of Love: Adaptation and Psychometric Properties of the Triangular Love Scale in 25 Countries
The Triangular Theory of Love (measured with Sternberg's Triangular Love Scale - STLS) is a prominent theoretical concept in empirical research on love. To expand the culturally homogeneous body of previous psychometric research regarding the STLS, we conducted a large-scale cross-cultural study with the use of this scale. In total, we examined more than 11,000 respondents, but as a result of applied exclusion criteria, the final analyses were ba…
Assortative mating and the evolution of desirability covariation
Preferred Interpersonal Distances: A Global Comparison
Human spatial behavior has been the focus of hundreds of previous research studies. However, the conclusions and generalizability of previous studies on interpersonal distance preferences were limited by some important methodological and sampling issues. The objective of the present study was to compare preferred interpersonal distances across the world and to overcome the problems observed in previous studies. We present an extensive analysis of…
Relationship Between Total Phenolic, Total Flavonoid and Oleuropein in Different Aged Olive (Olea Europaea L.) Cultivar Leaves
Backround and objective: Olive leaves have recently gained attention owing to its antioxidant antibacterial, antifungal and anti-inflammatory effects. Bioactive contents of olive leaves differ according to cultivation area, ecological conditions, age of tree, agronomical practices, cultivar, leaf growth stage and other abiotic and biotic stress factors. Material and Method: In this study, Olea europaea L. cultivar (Kilis Yaglık) at different age …
Relationship between total phenolic, total flavonoid and oleuropein in different aged olive ( Olea europaea l.) Cultivar leaves
Background: Olive leaves have recently gained attention owing to its antioxidant antibacterial, antifungal and anti-inflammatory effects. Bioactive contents of olive leaves differ according to cultivation area, ecological conditions, age of tree, agronomical practices, cultivar, leaf growth stage and other abiotic and biotic stress factors.Material and Method: In this study, Olea europaea L. cultivar (Kilis Yaglık) at different age grown in Kilis…
Attractiveness of Leg Length: Report From 27 Nations
The leg-to-body ratio (LBR) is a morphological index that has been shown to influence a person's attractiveness. In our research, 3,103 participants from 27 nations rated the physical attractiveness of seven male and seven female silhouettes varying in LBR. We found that male and female silhouettes with short and excessively long legs were perceived as less attractive across all nations. Hence, the LBR may significantly influence perceptions of p…
Preferred Interpersonal Distances: A Global Comparison
Human spatial behavior has been the focus of hundreds of previous research studies. However, the conclusions and generalizability of previous studies on interpersonal distance preferences were limited by some important methodological and sampling issues. The objective of the present study was to compare preferred interpersonal distances across the world and to overcome the problems observed in previous studies. We present an extensive analysis of…
Universality of the Triangular Theory of Love: Adaptation and Psychometric Properties of the Triangular Love Scale in 25 Countries
The Triangular Theory of Love (measured with Sternberg's Triangular Love Scale - STLS) is a prominent theoretical concept in empirical research on love. To expand the culturally homogeneous body of previous psychometric research regarding the STLS, we conducted a large-scale cross-cultural study with the use of this scale. In total, we examined more than 11,000 respondents, but as a result of applied exclusion criteria, the final analyses were ba…
Attractiveness of Leg Length: Report From 27 Nations
The leg-to-body ratio (LBR) is a morphological index that has been shown to influence a person's attractiveness. In our research, 3,103 participants from 27 nations rated the physical attractiveness of seven male and seven female silhouettes varying in LBR. We found that male and female silhouettes with short and excessively long legs were perceived as less attractive across all nations. Hence, the LBR may significantly influence perceptions of p…
Love as a Commitment Device: Evidence from a Cross-Cultural Study across 90 Countries
Given the ubiquitous nature of love, numerous theories have been proposed to explain its existence. One such theory refers to love as a commitment device, suggesting that romantic love evolved to foster commitment between partners and enhance their reproductive success. In the present study, we investigated this hypothesis using a large-scale sample of 86,310 individual responses collected across 90 countries. If romantic love is universally perc…
The function of love: A signaling-to-alternatives account of the commitment device hypothesis
Conservatism Negatively Predicts Creativity: A Study Across 28 Countries
Previous studies have found a negative relationship between creativity and conservatism. However, as these studies were mostly conducted on samples of homogeneous nationality, the generalizability of the effect across different cultures is unknown. We addressed this gap by conducting a study in 28 countries. Based on the notion that attitudes can be shaped by both environmental and ecological factors, we hypothesized that parasite stress can also…
Covid-19 and Social Distancing: A Cross-Cultural Study of Interpersonal Distance Preferences and Touch Behaviors Before and During the Pandemic
The COVID-19 pandemic has led to the introduction of unprecedented safety measures, one of them being physical distancing recommendations. Here, we assessed whether the pandemic has led to long-term effects on two important physical distancing aspects, namely interpersonal distance preferences and interpersonal touch behaviors. We analyzed nearly 14,000 individual cases from two large, cross-cultural surveys – the first conducted 2 years prior to…
Attractiveness of Leg Length: Report From 27 Nations
The leg-to-body ratio (LBR) is a morphological index that has been shown to influence a person's attractiveness. In our research, 3,103 participants from 27 nations rated the physical attractiveness of seven male and seven female silhouettes varying in LBR. We found that male and female silhouettes with short and excessively long legs were perceived as less attractive across all nations. Hence, the LBR may significantly influence perceptions of p…
Relationship Between Total Phenolic, Total Flavonoid and Oleuropein in Different Aged Olive (Olea Europaea L.) Cultivar Leaves
Backround and objective: Olive leaves have recently gained attention owing to its antioxidant antibacterial, antifungal and anti-inflammatory effects. Bioactive contents of olive leaves differ according to cultivation area, ecological conditions, age of tree, agronomical practices, cultivar, leaf growth stage and other abiotic and biotic stress factors. Material and Method: In this study, Olea europaea L. cultivar (Kilis Yaglık) at different age …
Relationship between total phenolic, total flavonoid and oleuropein in different aged olive ( Olea europaea l.) Cultivar leaves
Background: Olive leaves have recently gained attention owing to its antioxidant antibacterial, antifungal and anti-inflammatory effects. Bioactive contents of olive leaves differ according to cultivation area, ecological conditions, age of tree, agronomical practices, cultivar, leaf growth stage and other abiotic and biotic stress factors.Material and Method: In this study, Olea europaea L. cultivar (Kilis Yaglık) at different age grown in Kilis…
Preferred Interpersonal Distances: A Global Comparison
Human spatial behavior has been the focus of hundreds of previous research studies. However, the conclusions and generalizability of previous studies on interpersonal distance preferences were limited by some important methodological and sampling issues. The objective of the present study was to compare preferred interpersonal distances across the world and to overcome the problems observed in previous studies. We present an extensive analysis of…
Assortative mating and the evolution of desirability covariation
Sex Differences in Mate Preferences Across 45 Countries: A Large-Scale Replication
Considerable research has examined human mate preferences across cultures, finding universal sex differences in preferences for attractiveness and resources as well as sources of systematic cultural variation. Two competing perspectives—an evolutionary psychological perspective and a biosocial role perspective—offer alternative explanations for these findings. However, the original data on which each perspective relies are decades old, and the li…
Universality of the Triangular Theory of Love: Adaptation and Psychometric Properties of the Triangular Love Scale in 25 Countries
The Triangular Theory of Love (measured with Sternberg's Triangular Love Scale - STLS) is a prominent theoretical concept in empirical research on love. To expand the culturally homogeneous body of previous psychometric research regarding the STLS, we conducted a large-scale cross-cultural study with the use of this scale. In total, we examined more than 11,000 respondents, but as a result of applied exclusion criteria, the final analyses were ba…
Affective Interpersonal Touch in Close Relationships: A Cross-Cultural Perspective
Interpersonal touch behavior differs across cultures, yet no study to date has systematically tested for cultural variation in affective touch, nor examined the factors that might account for this variability. Here, over 14,000 individuals from 45 countries were asked whether they embraced, stroked, kissed, or hugged their partner, friends, and youngest child during the week preceding the study. We then examined a range of hypothesized individual…
Predictors of enhancing human physical attractiveness: Data from 93 countries
People across the world and throughout history have gone to great lengths to enhance their physical appearance. Evolutionary psychologists and ethologists have largely attempted to explain this phenomenon via mating preferences and strategies. Here, we test one of the most popular evolutionary hypotheses for beauty-enhancing behaviors, drawn from mating market and parasite stress perspectives, in a large cross-cultural sample. We also test hypoth…
Otizm Spektrum Bozukluğuna Genel Bir Bakış
Özel Eğitim Hizmetleri Yönetmeliği'nde (2006) erken yaşta semptomlara sahip olan toplumsal etkileşim ve iletişim sınırlılığı bulunan, sözel
Covid-19 and Social Distancing: A Cross-Cultural Study of Interpersonal Distance Preferences and Touch Behaviors Before and During the Pandemic
The COVID-19 pandemic has led to the introduction of unprecedented safety measures, one of them being physical distancing recommendations. Here, we assessed whether the pandemic has led to long-term effects on two important physical distancing aspects, namely interpersonal distance preferences and interpersonal touch behaviors. We analyzed nearly 14,000 individual cases from two large, cross-cultural surveys – the first conducted 2 years prior to…
Increase in physiological inhibitory control results in better suppression of unwanted memories
Forgetting or suppressing a memory with unwanted content is just as important as remembering a desirable one. In addition to emphasizing the role of inhibitory control in memory suppression processes, neuropsychological studies have indicated that an intentional inhibition targeting a brain area may exert its inhibitory effects in seemingly unrelated areas through a common inhibitory network. In this study, we aimed to investigate whether the sup…
Exploring Attitudes Toward “Sugar Relationships” Across 87 Countries: A Global Perspective on Exchanges of Resources for Sex and Companionship
The current study investigates attitudes toward one form of sex for resources: the so-called sugar relationships, which often involve exchanges of resources for sex and/or companionship. The present study examined associations among attitudes toward sugar relationships and relevant variables (e.g., sex, sociosexuality, gender inequality, parasitic exposure) in 69,924 participants across 87 countries. Two self-report measures of Acceptance of Suga…
Validation of the Short Version (TLS-15) of the Triangular Love Scale (TLS-45) across 37 Languages
Love is a phenomenon that occurs across the world and affects many aspects of human life, including the choice of, and process of bonding with, a romantic partner. Thus, developing a reliable and valid measure of love experiences is crucial. One of the most popular tools to quantify love is Sternberg’s 45-item Triangular Love Scale (TLS-45), which measures three love components: intimacy, passion, and commitment. However, our literature review re…
Love as a Commitment Device: Evidence from a Cross-Cultural Study across 90 Countries
Given the ubiquitous nature of love, numerous theories have been proposed to explain its existence. One such theory refers to love as a commitment device, suggesting that romantic love evolved to foster commitment between partners and enhance their reproductive success. In the present study, we investigated this hypothesis using a large-scale sample of 86,310 individual responses collected across 90 countries. If romantic love is universally perc…
Conservatism Negatively Predicts Creativity: A Study Across 28 Countries
Previous studies have found a negative relationship between creativity and conservatism. However, as these studies were mostly conducted on samples of homogeneous nationality, the generalizability of the effect across different cultures is unknown. We addressed this gap by conducting a study in 28 countries. Based on the notion that attitudes can be shaped by both environmental and ecological factors, we hypothesized that parasite stress can also…
Space-magnitude associations modulate the familiar-size stroop effect in visual size judgments
SNARC effect in a transfer paradigm: Long-lasting effects of stimulus-response compatibility practices
Investigating No SNARC: Do Reading Habits Provide Insight into the SNARC Patterns of Turkish Sample
The mental number line ( MNL ) represents numbers spatially, with smaller numbers on the left and larger numbers on the right, as demonstrated by the SNARC effect. This effect is influenced by reading direction, with left-to-right languages (e.g., English) showing a stronger SNARC effect compared to right-to-left languages (e.g., Hebrew). However, previous research has shown the absence of SNARC in Turkish samples, despite a left-to-right reading…
The function of love: A signaling-to-alternatives account of the commitment device hypothesis
Sociosexual orientation, life history strategy, and reproductive success: A large-scale cross-cultural analysis across 92 contemporary societies
Real-world object size as a magnitude dimension: Robust perceived size distance effects and context-sensitive spatial coding
Mortality salience shifts moral judgment: Reproductive motivations override normative defenses in males
Psychology (15 works) · Social Psychology (12 works) · Evolutionary Psychology and Human Behavior (11 works) · Developmental psychology (9 works) · Biology (6 works) · Social Psychology (6 works) · Sociology (5 works) · Attachment and Relationship Dynamics (4 works) · Demography (4 works) · Geography (4 works)