Juan Francisco Díaz-Morales
Biographic Data
| ID | 199553 |
|---|---|
| NAME | Juan Francisco Díaz-Morales |
| GIVEN NAMES | Juan Francisco |
| FAMILY NAME | Díaz-Morales |
| SIGNATURE | DÍAZ-MORALES J F |
| AFFILIATIONS | Universidad Complutense de Madrid |
| ORCID | 0000-0002-3894-7908 |
| VERIFIED | Yes |
| TOTAL WORKS | 12 |
| TOTAL CITATIONS | 36 |
| AUTHOR COUNT | 12 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2007 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 4 |
Individual differences in entrepreneurial tendencies: The impact of self-employment and the Dark Triad
Factors Underpinning the Shift to Eveningness during Early Adolescence: Pubertal Development and Family Conflicts
Biological and psychosocial factors have been related to the shift to eveningness during early adolescence but it is necessary to study them from a longitudinal perspective. This longitudinal study examined the contribution of these factors to the onset of a shift towards eveningness in early adolescence. A sample of 440 (49.9% boys) Spanish adolescents were assessed for pubertal development, family conflicts, and morningness/eveningness. The sam…
Birding recreation specialization – A test of the factorial invariance in eight languages
Birding specialization can be measured alongside a continuum from the beginner to the specialist. The structure of birding specialization has three dimensions: (1) skill/knowledge, (2) behavior, and (3) psychological commitment. We tested the factorial structure and factorial invariance of the birding specialization scale in traditional and simplified Chinese, Finnish, German, Italian, Polish, Portuguese, and Spanish birders. A total of 2,913 (32…
Sleep timing is linked to sociosexuality: Evidence from German, Polish, Slovak, and Spanish females
Given the known relationship between eveningness and sociosexuality among females, the aims of this study were: (a) to analyze this relationship in four countries using midsleep time on free days and morning affect measures of morningness-eveningness and (b) to test the role of dark personality and other relevant control variables in this relationship. Data from 1483 females were collected from Poland, Spain, Germany, and Slovakia. Adjusting for …
I will do it tomorrow! Exploring the dimensionality of procrastination in Poland
The aim of this study was to analyze the psychometric properties of the widely used general procrastination, decisional procrastination, and adult inventory of procrastination scales in both undergraduate and adult Polish populations. Polish versions of these scales were filled out by 390 student and 513 adult participants. Principal component analysis indicated one-factor structure for each scale. The pattern of loadings was congruent between st…
Morningness-eveningness is not associated with academic performance in the afternoon school shift: Preliminary findings
BackgroundThe effect of morningness-eveningness, sleep habits, and intelligence on academic performance has been studied in a fixed morning school shift. However, no studies have analysed these variables in an afternoon school shift and tested whether morningness-eveningness is related to academic performance beyond sleep habits and intelligence effects.AimsThe psychometric properties of the Morningness-Eveningness Scale for Children (MESC) were …
Sociosexuality, Morningness-Eveningness, and Sleep Duration
Morningness-eveningness is the preference for different times of day for activity and sleep. Here, we addressed the effects of sleep behavior and morningness-eveningness on sociosexuality. Three hundred students ( M age = 22.75 years, with 95% between 18 and 28) participated online, answering questions about morningness-eveningness (rMEQ [Reduced Morningness-Eveningness Questionnaire]), midpoint of sleep on free days (MSF), sleep duration, and th…
Synchrony in chronotype and social jetlag between dogs and humans across Europe
People choosing a pet have a number of factors to consider. The important one is whether a pet can synchronize with humans in sleep timing. Chronotype reflects individual differences in sleep timing. Social jetlag referring to a misalignment of one’s own biological (internal) time compared to the social time reflects variability in sleep timing between work and free days and is considered a health risk factor. In this study, chronotype and social…
A Global Look at Time: A 24-Country Study of the Equivalence of the Zimbardo Time Perspective Inventory
In this article, we assess the structural equivalence of the Zimbardo Time Perspective Inventory (ZTPI) across 26 samples from 24 countries ( N = 12,200). The ZTPI is proven to be a valid and reliable index of individual differences in time perspective across five temporal categories: Past Negative, Past Positive, Present Fatalistic, Present Hedonistic, and Future. We obtained evidence for invariance of 36 items (out of 56) and also the five-fact…
Indecision and Avoidant Procrastination: The Role of Morningness—Eveningness and Time Perspective in Chronic Delay Lifestyles
The authors examined how time orientation and morningness-eveningness relate to 2 forms of procrastination: indecision and avoidant forms. Participants were 509 adults (M age = 49.78 years, SD = 6.14) who completed measures of time orientation, morningness-eveningness, decisional procrastination (i.e., indecision), and avoidant procrastination. Results showed that morningness was negatively related to avoidant procrastination but not decisional p…
Procrastination: Different time orientations reflect different motives
Frequent Behavioral Delay Tendencies By Adults: International Prevalence Rates of Chronic Procrastination
Adult men ( n = 582) and women ( n = 765) from six nations (Spain, Peru, Venezuela, the United Kingdom, Australia, and the United States) completed two reliable and valid measures of chronic procrastination. Because both arousal and avoidant procrastination types were significantly related across the entire sample ( r = .72, p < .001) and within each national sample, regression analyses calculated "pure" arousal and "pure" avoidant procrastinator…
A Global Look at Time: A 24-Country Study of the Equivalence of the Zimbardo Time Perspective Inventory
In this article, we assess the structural equivalence of the Zimbardo Time Perspective Inventory (ZTPI) across 26 samples from 24 countries ( N = 12,200). The ZTPI is proven to be a valid and reliable index of individual differences in time perspective across five temporal categories: Past Negative, Past Positive, Present Fatalistic, Present Hedonistic, and Future. We obtained evidence for invariance of 36 items (out of 56) and also the five-fact…
Procrastination: Different time orientations reflect different motives
Birding recreation specialization – A test of the factorial invariance in eight languages
Birding specialization can be measured alongside a continuum from the beginner to the specialist. The structure of birding specialization has three dimensions: (1) skill/knowledge, (2) behavior, and (3) psychological commitment. We tested the factorial structure and factorial invariance of the birding specialization scale in traditional and simplified Chinese, Finnish, German, Italian, Polish, Portuguese, and Spanish birders. A total of 2,913 (32…
Indecision and Avoidant Procrastination: The Role of Morningness—Eveningness and Time Perspective in Chronic Delay Lifestyles
The authors examined how time orientation and morningness-eveningness relate to 2 forms of procrastination: indecision and avoidant forms. Participants were 509 adults (M age = 49.78 years, SD = 6.14) who completed measures of time orientation, morningness-eveningness, decisional procrastination (i.e., indecision), and avoidant procrastination. Results showed that morningness was negatively related to avoidant procrastination but not decisional p…
Factors Underpinning the Shift to Eveningness during Early Adolescence: Pubertal Development and Family Conflicts
Biological and psychosocial factors have been related to the shift to eveningness during early adolescence but it is necessary to study them from a longitudinal perspective. This longitudinal study examined the contribution of these factors to the onset of a shift towards eveningness in early adolescence. A sample of 440 (49.9% boys) Spanish adolescents were assessed for pubertal development, family conflicts, and morningness/eveningness. The sam…
Frequent Behavioral Delay Tendencies By Adults: International Prevalence Rates of Chronic Procrastination
Adult men ( n = 582) and women ( n = 765) from six nations (Spain, Peru, Venezuela, the United Kingdom, Australia, and the United States) completed two reliable and valid measures of chronic procrastination. Because both arousal and avoidant procrastination types were significantly related across the entire sample ( r = .72, p < .001) and within each national sample, regression analyses calculated "pure" arousal and "pure" avoidant procrastinator…
Sleep timing is linked to sociosexuality: Evidence from German, Polish, Slovak, and Spanish females
Given the known relationship between eveningness and sociosexuality among females, the aims of this study were: (a) to analyze this relationship in four countries using midsleep time on free days and morning affect measures of morningness-eveningness and (b) to test the role of dark personality and other relevant control variables in this relationship. Data from 1483 females were collected from Poland, Spain, Germany, and Slovakia. Adjusting for …
I will do it tomorrow! Exploring the dimensionality of procrastination in Poland
The aim of this study was to analyze the psychometric properties of the widely used general procrastination, decisional procrastination, and adult inventory of procrastination scales in both undergraduate and adult Polish populations. Polish versions of these scales were filled out by 390 student and 513 adult participants. Principal component analysis indicated one-factor structure for each scale. The pattern of loadings was congruent between st…
Morningness-eveningness is not associated with academic performance in the afternoon school shift: Preliminary findings
BackgroundThe effect of morningness-eveningness, sleep habits, and intelligence on academic performance has been studied in a fixed morning school shift. However, no studies have analysed these variables in an afternoon school shift and tested whether morningness-eveningness is related to academic performance beyond sleep habits and intelligence effects.AimsThe psychometric properties of the Morningness-Eveningness Scale for Children (MESC) were …
Sociosexuality, Morningness-Eveningness, and Sleep Duration
Morningness-eveningness is the preference for different times of day for activity and sleep. Here, we addressed the effects of sleep behavior and morningness-eveningness on sociosexuality. Three hundred students ( M age = 22.75 years, with 95% between 18 and 28) participated online, answering questions about morningness-eveningness (rMEQ [Reduced Morningness-Eveningness Questionnaire]), midpoint of sleep on free days (MSF), sleep duration, and th…
Procrastination: Different time orientations reflect different motives
Frequent Behavioral Delay Tendencies By Adults: International Prevalence Rates of Chronic Procrastination
Adult men ( n = 582) and women ( n = 765) from six nations (Spain, Peru, Venezuela, the United Kingdom, Australia, and the United States) completed two reliable and valid measures of chronic procrastination. Because both arousal and avoidant procrastination types were significantly related across the entire sample ( r = .72, p < .001) and within each national sample, regression analyses calculated "pure" arousal and "pure" avoidant procrastinator…
Indecision and Avoidant Procrastination: The Role of Morningness—Eveningness and Time Perspective in Chronic Delay Lifestyles
The authors examined how time orientation and morningness-eveningness relate to 2 forms of procrastination: indecision and avoidant forms. Participants were 509 adults (M age = 49.78 years, SD = 6.14) who completed measures of time orientation, morningness-eveningness, decisional procrastination (i.e., indecision), and avoidant procrastination. Results showed that morningness was negatively related to avoidant procrastination but not decisional p…
A Global Look at Time: A 24-Country Study of the Equivalence of the Zimbardo Time Perspective Inventory
In this article, we assess the structural equivalence of the Zimbardo Time Perspective Inventory (ZTPI) across 26 samples from 24 countries ( N = 12,200). The ZTPI is proven to be a valid and reliable index of individual differences in time perspective across five temporal categories: Past Negative, Past Positive, Present Fatalistic, Present Hedonistic, and Future. We obtained evidence for invariance of 36 items (out of 56) and also the five-fact…
Synchrony in chronotype and social jetlag between dogs and humans across Europe
People choosing a pet have a number of factors to consider. The important one is whether a pet can synchronize with humans in sleep timing. Chronotype reflects individual differences in sleep timing. Social jetlag referring to a misalignment of one’s own biological (internal) time compared to the social time reflects variability in sleep timing between work and free days and is considered a health risk factor. In this study, chronotype and social…
Sociosexuality, Morningness-Eveningness, and Sleep Duration
Morningness-eveningness is the preference for different times of day for activity and sleep. Here, we addressed the effects of sleep behavior and morningness-eveningness on sociosexuality. Three hundred students ( M age = 22.75 years, with 95% between 18 and 28) participated online, answering questions about morningness-eveningness (rMEQ [Reduced Morningness-Eveningness Questionnaire]), midpoint of sleep on free days (MSF), sleep duration, and th…
Morningness-eveningness is not associated with academic performance in the afternoon school shift: Preliminary findings
BackgroundThe effect of morningness-eveningness, sleep habits, and intelligence on academic performance has been studied in a fixed morning school shift. However, no studies have analysed these variables in an afternoon school shift and tested whether morningness-eveningness is related to academic performance beyond sleep habits and intelligence effects.AimsThe psychometric properties of the Morningness-Eveningness Scale for Children (MESC) were …
Sleep timing is linked to sociosexuality: Evidence from German, Polish, Slovak, and Spanish females
Given the known relationship between eveningness and sociosexuality among females, the aims of this study were: (a) to analyze this relationship in four countries using midsleep time on free days and morning affect measures of morningness-eveningness and (b) to test the role of dark personality and other relevant control variables in this relationship. Data from 1483 females were collected from Poland, Spain, Germany, and Slovakia. Adjusting for …
I will do it tomorrow! Exploring the dimensionality of procrastination in Poland
The aim of this study was to analyze the psychometric properties of the widely used general procrastination, decisional procrastination, and adult inventory of procrastination scales in both undergraduate and adult Polish populations. Polish versions of these scales were filled out by 390 student and 513 adult participants. Principal component analysis indicated one-factor structure for each scale. The pattern of loadings was congruent between st…
Birding recreation specialization – A test of the factorial invariance in eight languages
Birding specialization can be measured alongside a continuum from the beginner to the specialist. The structure of birding specialization has three dimensions: (1) skill/knowledge, (2) behavior, and (3) psychological commitment. We tested the factorial structure and factorial invariance of the birding specialization scale in traditional and simplified Chinese, Finnish, German, Italian, Polish, Portuguese, and Spanish birders. A total of 2,913 (32…
Factors Underpinning the Shift to Eveningness during Early Adolescence: Pubertal Development and Family Conflicts
Biological and psychosocial factors have been related to the shift to eveningness during early adolescence but it is necessary to study them from a longitudinal perspective. This longitudinal study examined the contribution of these factors to the onset of a shift towards eveningness in early adolescence. A sample of 440 (49.9% boys) Spanish adolescents were assessed for pubertal development, family conflicts, and morningness/eveningness. The sam…
Individual differences in entrepreneurial tendencies: The impact of self-employment and the Dark Triad
Psychology (11 works) · Developmental psychology (8 works) · Social Psychology (7 works) · Clinical Psychology (5 works) · Medicine (5 works) · Social Psychology (5 works) · Chronotype (4 works) · Clinical Psychology (4 works) · Perfectionism, Procrastination, Anxiety Studies (4 works) · Procrastination (4 works)