Christian Vollmer
Biographic Data
| ID | 3917466 |
|---|---|
| NAME | Christian Vollmer |
| GIVEN NAMES | Christian |
| FAMILY NAME | Vollmer |
| SIGNATURE | VOLLMER C |
| AFFILIATIONS | Heidelberg University of Education |
| ORCID | 0000-0002-7763-7013 |
| VERIFIED | Yes |
| TOTAL WORKS | 6 |
| TOTAL CITATIONS | 12 |
| WORKS AS AUTHOR | 6 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2013 |
| LATEST PUBLICATION YEAR | 2018 |
| H-INDEX | 3 |
Composite Respect for Animals Scale
A valid and convenient method to measure nonhuman animal attitudes contributes to feasible survey studies and the evaluation of educational programs. There are established scales for measuring animal attitudes but only some have acceptable psychometric properties: others address only a small fraction of the constructs, and some are overly long. We therefore aimed to develop a short, practicable measurement of animal attitudes that contains the co…
Sleep duration and chronotype in adults in Côte d'Ivoire
This study investigated the sleep-wake rhythm and chronotype of people living in Côte d'Ivoire. We assessed sleep-wake behaviour in 556 adults (336 men, 220 women) between 25 and 54 years (mean: 38.63) by means of structured interviews. Data were analysed by linear models with sleep wake variables as dependent variables and age, gender, religion and region (urban/rural) as fixed factors controlling for number of working hours and children. Result…
Differences in sun time within the same time zone affect sleep-wake and social rhythms, but not morningness preference
Morningness-eveningness describes individual preferences for activity at specified times of the day. The present research aimed to test whether sun time entrains humans and whether this effect is observable in sleep-wake timing, in the timing of social rhythm and in morningness preference. Furthermore, we tested whether different reference points (activity expressed in standard time or in sun time, morningness preference scores) provide concordan…
Computer Game Addiction in Adolescents and Its Relationship to Chronotype and Personality
This study assessed the relationship between computer game addiction and computer game usage time, age, gender, BIG-5 personality, and chronotype. Seven hundred and forty-one adolescents from Turkey responded to questionnaires on these topics. We found that computer game addiction, computer game usage time, and chronotype were related with each other. Evening-oriented, younger, and male students had higher computer game addiction scores than morn…
Aggression in Young Adults — A Matter of Short Sleep and Social Jetlag
Evening orientation and sleep duration have been linked with aggression and problematic behaviors, but no study has used an explicit aggression questionnaire. The present study used the Buss-Perry Aggression Questionnaire based on physical aggression, verbal aggression, anger, and hostility, as well as questionnaires on the timing of sleep and sleep duration to assess this relationship in young adult men. The Composite Scale of Morningness was us…
Internet Addiction and Its Relationship to Chronotype and Personality in a Turkish University Student Sample
This study sought to investigate whether Internet addiction (IA) is associated with age, gender, BIG-5 personality, and chronotype in a Turkish university student sample. Six hundred and sixteen students filled out a set of questionnaires. We here report—to our knowledge for the first time—an association between IA and chronotype. Evening types and males had higher IA scores than others. Furthermore, agreeable and conscientious students reported …
Differences in sun time within the same time zone affect sleep-wake and social rhythms, but not morningness preference
Morningness-eveningness describes individual preferences for activity at specified times of the day. The present research aimed to test whether sun time entrains humans and whether this effect is observable in sleep-wake timing, in the timing of social rhythm and in morningness preference. Furthermore, we tested whether different reference points (activity expressed in standard time or in sun time, morningness preference scores) provide concordan…
Internet Addiction and Its Relationship to Chronotype and Personality in a Turkish University Student Sample
This study sought to investigate whether Internet addiction (IA) is associated with age, gender, BIG-5 personality, and chronotype in a Turkish university student sample. Six hundred and sixteen students filled out a set of questionnaires. We here report—to our knowledge for the first time—an association between IA and chronotype. Evening types and males had higher IA scores than others. Furthermore, agreeable and conscientious students reported …
Composite Respect for Animals Scale
A valid and convenient method to measure nonhuman animal attitudes contributes to feasible survey studies and the evaluation of educational programs. There are established scales for measuring animal attitudes but only some have acceptable psychometric properties: others address only a small fraction of the constructs, and some are overly long. We therefore aimed to develop a short, practicable measurement of animal attitudes that contains the co…
Aggression in Young Adults — A Matter of Short Sleep and Social Jetlag
Evening orientation and sleep duration have been linked with aggression and problematic behaviors, but no study has used an explicit aggression questionnaire. The present study used the Buss-Perry Aggression Questionnaire based on physical aggression, verbal aggression, anger, and hostility, as well as questionnaires on the timing of sleep and sleep duration to assess this relationship in young adult men. The Composite Scale of Morningness was us…
Internet Addiction and Its Relationship to Chronotype and Personality in a Turkish University Student Sample
This study sought to investigate whether Internet addiction (IA) is associated with age, gender, BIG-5 personality, and chronotype in a Turkish university student sample. Six hundred and sixteen students filled out a set of questionnaires. We here report—to our knowledge for the first time—an association between IA and chronotype. Evening types and males had higher IA scores than others. Furthermore, agreeable and conscientious students reported …
Differences in sun time within the same time zone affect sleep-wake and social rhythms, but not morningness preference
Morningness-eveningness describes individual preferences for activity at specified times of the day. The present research aimed to test whether sun time entrains humans and whether this effect is observable in sleep-wake timing, in the timing of social rhythm and in morningness preference. Furthermore, we tested whether different reference points (activity expressed in standard time or in sun time, morningness preference scores) provide concordan…
Computer Game Addiction in Adolescents and Its Relationship to Chronotype and Personality
This study assessed the relationship between computer game addiction and computer game usage time, age, gender, BIG-5 personality, and chronotype. Seven hundred and forty-one adolescents from Turkey responded to questionnaires on these topics. We found that computer game addiction, computer game usage time, and chronotype were related with each other. Evening-oriented, younger, and male students had higher computer game addiction scores than morn…
Sleep duration and chronotype in adults in Côte d'Ivoire
This study investigated the sleep-wake rhythm and chronotype of people living in Côte d'Ivoire. We assessed sleep-wake behaviour in 556 adults (336 men, 220 women) between 25 and 54 years (mean: 38.63) by means of structured interviews. Data were analysed by linear models with sleep wake variables as dependent variables and age, gender, religion and region (urban/rural) as fixed factors controlling for number of working hours and children. Result…
Composite Respect for Animals Scale
A valid and convenient method to measure nonhuman animal attitudes contributes to feasible survey studies and the evaluation of educational programs. There are established scales for measuring animal attitudes but only some have acceptable psychometric properties: others address only a small fraction of the constructs, and some are overly long. We therefore aimed to develop a short, practicable measurement of animal attitudes that contains the co…
Psychology (6 works) · Chronotype (5 works) · Circadian rhythm (4 works) · Medicine (4 works) · Clinical Psychology (3 works) · Clinical Psychology (3 works) · Developmental psychology (3 works) · Morning (3 works) · Personality (3 works) · Psychiatry (3 works)