Journal of Young Investigators
    Undergraduate, Peer-Reviewed Science Journal
Volume Ten 
    RESEARCH ARTICLE
RECENT ISSUES | ARCHIVES | RESOURCES | JYI NEWS | ABOUT JYI 
Issue 1, January 2004

Psychological & Social Sciences

Perfectionism and Loneliness as Predictors of Depressive Symptoms: A Test of an Integrative Model

Youngna Park
Cornell University
Advisor: Edward C. Chang, Ph.D.
University of Michigan
Discuss this article!

 

Abstract

This study had three distinct objectives. First, to examine the relationships between perfectionism and loneliness to depressive symptoms. Second, to identify perfectionism and loneliness as unique predictors of depressive symptoms. Third, to examine whether perfectionism and loneliness interact to predict depressive symptoms. Results suggest that the three dimensions of perfectionism measured by the Multidimensional Perfectionism Scale (Hewitt & Flett 1991b) are significantly correlated with one another. In addition, loneliness was found to be correlated with depressive symptoms. Surprisingly, none of the dimensions of perfectionism were significantly correlated with depressive symptoms. Overall, perfectionism was found to be neither a significant main nor interactive predictor of depressive symptoms, while loneliness was found to be a significant unique main, but not interactive, predictor of depressive symptoms.

 

Introduction

In past research, perfectionism and loneliness have both been linked to maladaptive behaviors and depressive symptoms. However, few studies have examined these variables as either main or interactive predictors of depressive symptoms. By examining these variables simultaneously, it is possible to determine their relative explanatory power in accounting for depressive symptoms.

Perfectionism

Perfectionism has increasingly been studied as a multidimensional personality trait over the last decade. Varying concepts of perfectionism have been proposed, most often regarding perfectionism as a maladaptive trait (Blatt 1995). These notions of perfectionism rise from the idea that it may stem from neurotic behavior. Research, using a variety of perfectionism measures, provides support for this claim: Perfectionism has been associated with depressive symptoms (Chang and Sanna 2001; Enns and Cox 1999; Hewitt and Flett 1991a 1993; Joiner and Schmidt 1995; Lynd-Stevenson and Hearne 1999), greater negative affectivity (one’s emotional state) and less positive affectivity (Chang 2000; Frost et al. 1993), low self-efficacy (Hart et al. 1998), increased suicidal ideation (Hamilton and Schweitzer 2000; Hewitt et al. 1994; Hewitt et al. 1997), and greater social anxiety (Juster et al. 1996; Saboonchi et al. 1999). Others have suggested perfectionism can be “normal” rather than “neurotic,” a distinction made by Hamachek (1978), who suggests that individuals can be “satisfied” (Slade 1982) with their performance and engage in “positive striving” (Frost et al. 1993) accompanied by positive effect and increased self-esteem.

Two multidimensional measures of perfectionism are predominant in the current literature (Frost et al. 1990; Hewitt and Flett 1991). These measures have been developed from numerous studies of clinical populations, which indicate perfectionism is widely associated with numerous psychopathologies (Terry-Short et al. 1995) and maladaptive behaviors, as indicated above. Hewitt and Flett’s (1991a) Multidimensional Perfectionism Scale (MPS) assesses perfectionism as a phenomenon consisting of three dimensions: self-oriented, other-oriented, and socially-prescribed perfectionism. Self-oriented perfectionism is defined as the tendency for an individual to set and seek high self-standards of performance. Other-oriented perfectionism describes the tendency for an individual to expect that others should or will be perfect in their performance, and socially prescribed perfectionism refers to the tendency for an individual to believe that others expect perfection from him or her (Hewitt and Flett 1991b).

The second predominant multidimensional perfectionism measure is the Frost Multidimensional Perfectionism Scale (FMPS) (Frost et al. 1990). Frost et al. define perfectionism as a variable involving excessive self-criticism associated with higher personal standards, concern over meeting social expectations, and excessive focus on organization and neatness, and doubts about the effectiveness of one’s actions.

Perfectionism: Link to Negative Outcomes, Including Depressive Symptoms

In the Diagnostic and Statistical Manual of Mental Disorders 4th edition (American Psychiatric Association 1994), major depression is defined by depressed mood, markedly diminished interest or pleasure, significant weight loss or gain, insomnia or hypersomnia, psychomotor agitation, fatigue, feelings of worthlessness or guilt, diminished ability to think or concentrate, and recurrent thoughts of death. Depressive symptoms can be experienced in varying degrees, ranging from mild responses to negative life experiences, to severe, disabling, and persistent distortions of one’s internal and external world. Depressive symptoms are complex, and many believe that depression results from severe disruptions in one’s interpersonal relations or from serious threats to one’s self-esteem and feelings of self worth.

Numerous studies using the MPS point to a positive correlation between depressive symptoms and levels of perfectionism (Hill et al. 1997; Lynd-Stevenson and Hearne 1999). In addition, the FMPS has also demonstrated significant correlations between perfectionism and depressive symptoms (Enns and Cox 1999; Frost et al. 1993). Perfectionism may also interfere with treating those suffering from clinical depression; findings indicate perfectionism hinders the successful treatment of depressive symptoms (Blatt et al. 1995; Blatt et al. 1998), regardless of the method of therapy used. These modalities include cognitive therapy, interpersonal psychotherapy, and varieties of drug treatment.

The three different domains of perfectionism, as measured by the MPS, are differentially related as potential correlates of depressive symptoms, which are often measured by the Beck Depression Inventory (BDI) (Beck et al. 1961). The strongest association is usually found between socially prescribed perfectionism and depressive symptoms (Enns and Cox 1999; Flett et al. 1991; Hewitt and Flett 1991a; Hewitt et al. 1996; Wyatt and Gilbert 1998), although consistent correlations between depressive symptoms and self-oriented perfectionism are frequently found as well. Individuals with socially prescribed perfectionism perceive that external sources impose standards upon them. These perfectionist individuals believe they must maintain unrealistic expectations that others have placed on them, and these are necessary for acceptance and approval (Frost et al. 1990; Hewitt and Flett 1991a, 1991b). These stressors appear to be out of the individual’s control, causing a sense of failure, and potentially depressive symptoms.

Self-oriented perfectionism is also associated with depressive symptoms. Like socially prescribed perfectionism, self-oriented perfectionism places an emphasis on the individual and his or her achievements. Studies by Hewitt and Flett (1991a) indicate excessive self-criticism, unrealistic expectations, and feelings of worthlessness can lead to depressive symptoms or dysphoria, a condition of persistent depressive feelings. In a 1993 study of 51 unipolar depressed patients and 94 mixed psychiatric patients, Hewitt and Flett also found self-oriented perfectionism predicts depressive symptoms in an achievement-stress context, and the stressor affects the relationship between the depression and the specific type of perfectionism. Furthermore, a second study of 121 patients with either unipolar or bipolar depression indicated self-oriented perfectionism interacts with achievement stress. Hewitt and Flett determined that specific achievement stressors are necessary for self-oriented perfectionism to manifest itself as depression (1996). Both self-oriented and socially prescribed perfectionism are related to psychological distress in both clinical and non-clinical populations. In contrast, other-oriented perfectionism is sometimes associated with fewer symptoms of depression (Flett et al. 1995), raising the question of how closely other-oriented perfectionism defines the original construct.

The relationship between perfectionism and depressive symptoms has implications for treating maladaptive forms of perfectionism that might contribute to an individual’s depressive state. This study identifies whether perfectionism can serve as a unique main or interactive predictor of depressive symptoms in conjunction with loneliness, and if combating perfectionist tendencies may therefore alleviate these depressive symptoms.

Loneliness

The debilitating emotions present in those suffering from depressive symptoms are also often found in the experience of loneliness. Loneliness is widely agreed to result from a deficiency in an individual’s social relationships. Additionally, loneliness is subjective, and does not reflect the size of one’s social network or their number of associates. Lastly, loneliness is painful and distressing (Peplau and Perlman 1982). Similar to findings for perfectionism, loneliness has been correlated with numerous maladaptive characteristics and negative behavior states including depressive symptoms, suicide, hostility, alcoholism, psychosomatic illnesses, and a poor self-concept (Rokach et al. 2002; McWhirter 1990). Research has focused on studies of personality traits common in lonely people, finding they tend to express attributes of shyness, low levels of assertiveness, and introversion (Bell 1985; Hojat 1982; Jones et al. 1981) in addition to the above-mentioned symptoms and illnesses. Several researchers have attempted to develop measures of loneliness. The University of California, Los Angeles (UCLA) Loneliness Scale (Russell et al. 1980), and its revised version, are widely used measures of individuals’ levels of loneliness.

Loneliness: Link to Negative Outcomes, Including Depressive Symptoms

Empirical data suggests that loneliness is significantly correlated to depressive symptoms (Bradley 1970; Bragg 1979; Hsu et al. 1987) and numerous other negative outcomes. Lonely people have indicated they are less happy, less satisfied, more pessimistic, and suffer from more depressive symptoms (Peplau and Perlman 1982) than people who are not lonely. Lonely individuals have also reported negative behaviors and affective states when experiencing loneliness, including tenseness, restlessness, and boredom. Other studies have indicated that loneliness is also linked to high scores on pessimism, and is negatively correlated with happiness and life-satisfaction (Rokach et al. 2002).

Additional associations between loneliness and depressive symptoms were found in Hsu et al.’s (1987) study of the cultural and emotional components of these two conditions. Findings indicated that depressed clients scored significantly higher on the UCLA Loneliness Scale than non-depressed foreign, American, and Chinese students, indicating a strong relationship between depression and loneliness, regardless of one’s nationality. Depressed individuals also scored significantly higher than both American and Chinese students on Loneliness Anxiety, and Loneliness Depression, subscales of the Belcher Extended Loneliness Scale.

The present study had three distinct purposes. First, it set out to examine the relations of perfectionism and loneliness to depressive symptoms. Second, to examine the associations between perfectionism and loneliness as unique predictors of depressive symptoms. Lastly, it would determine if perfectionism and loneliness interacted to predict depressive symptoms.

Previous research indicates that self-oriented and socially prescribed perfectionism are positively correlated with depressive symptoms. We predicted a consistent result in the current study. In addition, we predicted loneliness would be positively correlated with depressive symptoms. Since measures of perfectionism and loneliness are distinctly different, we expected that both perfectionism and loneliness would be unique predictors of depressive symptoms. Finally, we expected perfectionism and loneliness would interact to predict depressive symptoms. For example, we expected individuals with high levels of socially prescribed perfectionism and high levels of loneliness to report the greatest number of depressive symptoms.

Few studies have compared loneliness and perfectionism against one another as predictors of depressed symptoms. As expected, unique predictors of depressive symptoms, perfectionism and loneliness have both been associated with many maladaptive behaviors and emotional states. This study empirically tests the correlations between loneliness, perfectionism, and depressive symptoms.

 

Materials and Methods

Eighty-nine college students (25 male and 64 female) were recruited from a large Midwestern university. All participants were enrolled in an upper-division psychology course and obtained extra course credit for participating. Most of the participants indicated they were Caucasian American (68.7%), followed by African American (13.1%), Asian American (9.1%), Latin American (2.0%), and then Other. Ages ranged from 18 to 30 years (M = 19.6, SD =1.6). Men and women were not found to differ significantly in age.

All three types of perfectionism and loneliness were included as predictors of depressive symptoms in a simultaneous regression analysis. It was expected that loneliness, socially prescribed, and self-oriented perfectionism would emerge as main predictors of perfectionism as they have in the past. A second regression analysis was also run, involving the main factors included in the first regression (self-oriented perfectionism, socially prescribed perfectionism, other-oriented perfectionism, and loneliness), as well as additional interactive terms between loneliness and the three dimensions of perfectionism.

Measures

Depression: The Beck Depression Inventory (Beck et al. 1961) is a 21-item scale used to measure the intensity of depressive symptoms. Scores on each item can range across a four-point scale, for example, 0 = “I do not feel sad,” to 3 = “I am so sad or unhappy that I can’t stand it.” The total inventory score ranges from 0 to 63.

Perfectionism: The MPS is a 45-item measure of perfectionism consisting of three dimensions: Self-Oriented Perfectionism (SOP; e.g., “One of my goals is to be perfect in everything I do.”), Other-Oriented Perfectionism (OOP; e.g., “If I ask someone to do something, I expect it to be done flawlessly.”), and Socially Prescribed Perfectionism (SPP; e.g., The people around me expect me to succeed at everything I do.”). The MPS yields three separate scores for each dimension of perfectionism. Each statement is measured on a seven-point Likert-type scale, from 1 (strongly disagree) to 7 (strongly agree).

Loneliness: The 20-item UCLA Loneliness Scale consists of self-relevant statements that respondents answer on a four-point scale, from 1 (not at all) to 4 (frequently). Half of the item measures are worded to indicate a high level of loneliness, while the other half is worded in the opposite direction, requiring these to be reverse scored. Each participant’s scores are averaged across the 20 items, so scores range from 1 (low loneliness) to 4 (high loneliness).

Procedure: All study measures were administered to participants in the form of a take-home survey that was to be returned the next day of class. Of the initial sample of 100, 11 participants failed to complete all measures, and thus their responses were not analyzed. This left a total of 89 completed responses that were available for subsequent analysis. Participants were not made aware of the purpose of the study until after the study was completed. To protect the participants’ anonymity, only participant numbers were placed on the instruments.

Results

Means, standard deviations, and alpha internal consistency coefficients (which indicate the reliability of the measures used) for all variables are presented in Table 1, which also presents zero-order correlations between all measures. Results indicated the three measures of perfectionism, self-oriented, socially prescribed, and other-oriented perfectionism, were highly inter-correlated with one another. A significant positive correlation was found between SOP and OOP, r (correlation) = 0.56, p (observed significance level) = <0.01. Data analysis also indicated a positive correlation between SOP and SPP, r = 0.44, p = <0.01, and between OOP and SPP, r = 0.48, p = <0.01. All three measures of perfectionism also exhibited high internal consistency (SOP ? = 0.92, OOP ? = 0.81, SPP ? = 0.78).

table 1
Table 1. Zero-Order Correlations and Internal Reliability Measures for All Studies.
*n=89. SOP=Self-oriented
perfectionism; OOP=Other-oriented perfectionism; SPP=Socially prescribed perfectionism;
LONE=UCLA Loneliness Scale; BDI=Beck Depression Inventory.
p< 0.05.
p < 0.01.

As Table 1 shows, none of the three MPS perfectionism dimensions were found to have significant correlations with depressive symptoms. An insignificant negative correlation emerged between SOP and BDI, = -0.19, ns (non-significant). Likewise, correlates of OOP and BDI emerged as non-significant, r = 0.01, ns, as did correlates between SPP and BDI, r = 0.01, ns. Only a single significant correlation emerged, loneliness and socially prescribed perfectionism, r = 0.24, p = <0.05. As hypothesized, loneliness was also correlated with depressive symptoms, r = 0.57, p = <0. 01. Loneliness also accounted for 31% of the variance in depressive symptoms (r2 = 0.31). It was surprising, however, that none of the measures of perfectionism were significantly correlated with depressive symptoms. These findings stand contrary to past findings of a positive correlation between the socially prescribed and self-oriented dimensions on Hewitt and Flett’s MPS.

In the first regression analysis, only loneliness emerged as a main unique predictor of depressive symptoms, t (84) = 6.30, p = <0.001. The second regression analysis was consistent with the previous regression results, and only loneliness, as measured by the UCLA Loneliness Scale, emerged as a significant main unique predictor of depression, t (84) = 3.57, p = <0.001 (Table 2). Loneliness did not interact with any of the assessed perfectionism variables as a significant predictor of depressive symptoms. However, the interaction between self-oriented perfectionism and loneliness was nearing significance levels (t (81) = 1.90, p = 0.061).

table 2

Table 2. Regression Analysis Showing Perfectionism and Loneliness as Main Predictors of Depressive Symptoms
*n = 89

Discussion

Results were surprisingly inconsistent with expectations for positive correlations between depressive symptoms with socially prescribed perfectionism and with self-oriented perfectionism based on previous studies (Chang and Sanna 2001; Enns and Cox 1999; Hewitt and Flett 1991a, 1993). Earlier research also indicates numerous correlations between greater negative affectivity and perfectionism (Chang 2000; Frost et al. 1993), low self-efficacy and perfectionism (Hart et al. 1998), and increased suicidal ideation and perfectionism (Hamilton and Schweitzer 2000; Hewitt et al. 1994; Hewitt et al. 1997). This research provides support that some of the dimensions of perfectionism should be significantly and positively correlated with depressive symptoms. Zero-order correlations and a regression analysis indicated that although the Hewitt and Flett MPS, Beck Depression Inventory, and UCLA Loneliness Scale were internally consistent and the measures of perfectionism were significantly correlated with one another, none of these three perfectionism dimensions was predictive of depressive symptoms.

The strong correlation between scores on the UCLA Loneliness Scale and the Beck Depression Inventory reaffirms previous findings of positive correlations between loneliness and depressive symptoms (Bradley 1970; Bragg 1979; Hsu et al. 1987). These findings suggest that future studies of depressive symptoms with negative affective conditions should consider loneliness as a robust predictor of these maladaptive emotional and behavioral conditions.

The interactive effects of self-oriented, socially prescribed, and other-oriented perfectionism with loneliness did not appear as significant main or interactive predictors of depression. However, the interactive effect of self-oriented perfectionism and loneliness came close to accepted significance levels, t (81) = -1.90, p = .061, suggesting the association between loneliness and depressive symptoms might depend on levels of self-oriented perfectionism. This finding is also consistent with studies demonstrating self-oriented perfectionism is maladaptive, and significantly associated with depressive symptoms (Enns and Cox 1999; Flett et al. 1991; Hewitt and Flett 1991a). Since loneliness has been correlated with measures related to self-oriented perfectionism, such as self-blame, self-deprecation, and social comparison, it might be expected this interaction would be close to accepted significance levels.

Limitations

Several limitations in this study may have produced unexpected correlation and regression analysis results. Hewitt and Flett’s distinctions between self-oriented, socially prescribed, and other-oriented perfectionism can be difficult to decipher. It is unclear whether any or all of these perfectionism dimensions are maladaptive or adaptive, though past research suggests socially prescribed perfectionism is a maladaptive trait, while self-oriented perfectionism is an adaptive one. However, since these two dimensions of perfectionism are often positively correlated with one another, it remains in question exactly how accurately the MPS assesses individuals’ levels of perfectionism. Repeating the current study with the FMPS may help alleviate some problems defining the relationships between perfectionism, loneliness, and depressive symptoms, because it presents clearer distinctions between maladaptive and adaptive dimensions of perfectionism.

Another limitation regards the sample pool. The majority of participants in this study were Caucasian, but research on perfectionism suggests culture factors may have an effect on individuals’ levels of perfectionism. For example, in a study conducted by Chang (1998), Asian-American college students exhibited significantly higher scores in maladaptive perfectionism, and significantly lower scores in adaptive perfectionism than their European-American counterparts. Literature regarding Asian Americans also indicates they are often characterized as expressing excessive perfectionist behaviors in comparison to Caucasian Americans (Yee 1992). Additionally, the sample in this study was biased toward females and expanding the study to a gender-equal sample would contribute to the validity of the results.

The subjects in this study were all recruited from an undergraduate university psychology course. A college-oriented lifestyle may contribute to perfectionist tendencies because of the stresses of both academics and one’s social life. Additional studies should consider measuring perfectionism in older and younger populations. Bandura and Cervone (1986) suggest that perfectionist tendencies may be the result of social learning in children, so the competitiveness of one’s academic environment and perfectionism in an individual’s family would strongly affect if and to what degree an individual is perfectionist. Hence, at different age levels, individuals would be subject to different pressures and exposure to imitative models influencing levels of perfectionism.

Varying perceptions of loneliness can affect tendencies toward negativistic views on life, and affect one’s own self-image and degree of self-criticism. Findings in this study indicate it is important to extend and replicate results with alternative measures of perfectionism (Frost et al. 1990) as well as examine relations between the present variables in different racial and ethnic groups.

 

Conclusion

In sum, the present study indicated that the three dimensions of perfectionism measured by the MPS are highly correlated with one another. In addition, the study found that the three dimensions of perfectionism are neither unique main nor interactive predictors of depressive symptoms. Loneliness, as measured by the UCLA Loneliness Scale, emerged as a significant unique main predictor of depressive symptoms. This suggests future research measuring depressive symptoms, and other negative affective states should account for loneliness as a significant predictor or potential interactive effect of these conditions.

The present study also has implications regarding the importance of conducting psychological research comparing the relative predictive power of variables that are associated with similar outcomes. Loneliness and perfectionism have previously been correlated with depressive symptoms. By examining them together, it was possible to identify if one was a more robust predictor of depressive symptoms than the other. Integrating the different lines of research to test for interactive results here provided new insights into the possible relationships between these variables.

Discuss this article!


References

American Psychiatric Association. (1994). Diagnostic and statistical manual of mental disorders. Washington, DC: American Psychiatric Association.

Anderson CA et al. (1988) Validity and utility of the attributional style construct at a moderate level of specificity. Journal of Personality & Social Psychology. 55:979–990.

Anderson CA et al. (1994) Behavioral and characterological attribution styles as predictors of depression and loneliness: Review, refinement, and test. Journal of Personality and Social Psychology. 66:549–558.

Bandura A, Cervone D. (1986) Differential engagement of self-reactive influences in cognitive motivation. Organizational Behavior and Human Decision Processes. 38:92 -113.

Beck AT et al. (1961) An inventory for measuring depression. Archives of General Psychiatry. 4:561-571.

Belcher MJ. (1973) The measurement of loneliness: A validation study of the Belcher Extended Loneliness Scale (BELS) (Doctoral Dissertation, Illinois Institute of Technology, 1973). Dissertation Abstracts International. 35:1035.

Bell RA. (1985) Conversational involvement and loneliness. Communication Monographs. 52:218–235.

Blatt SJ. (1995) The destructiveness of perfectionism: Implications for the treatment of depression. American Psychologist. 50:1003–1020.

Blatt SJ et al. (1995) Impact of perfectionism and need for approval on the brief treatment of depression: The National Institute of Mental Health Treatment of Depression Collaborative Research Program revisited. Journal of Consulting and Clinical Psychology. 63:125–132.

Blatt SJ et al. (1998) When and how perfectionism impedes the brief treatment of depression: Further analyses of the National Institute of Mental Health Treatment of Depression Collaborative Research Program. Journal of Consulting and Clinical Psychology. 66:423–428.

Chang EC. (1998) Perfectionism as a predictor of positive and negative psychological outcomes: Examining a mediation model in younger and older adults. Journal of Counseling Psychology. 47:18–26.

Chang EC, Sanna LJ. (2001) Negative attributional style as a moderator of the link between perfectionism and depressive symptoms: Preliminary evidence for an integrative model. Journal of Counseling Psychology. 48:490–495.

Dill JC, Anderson CA. (1999) Loneliness, shyness, and depression: The etiology and interrelationships of everyday problems in living. In T. Joiner & J.C. Coyne (Eds.), The interactional nature of depression: Advances in interpersonal approaches. Washington, DC: APA Books.

Enns MW, Cox BJ. (1999) Perfectionism and depressive symptom severity in major depressive disorder. Behaviour Research and Therapy. 37:784–794.

Flett GL et al. (1995) Perfectionism, life events, and depressive symptoms: A test of a diathesis-stress model. Current Psychology. 14:112–137.

Flett GL et al. (1991) Perfectionism and learned resourcefulness in depression and self-esteem. Personality and Individual Differences. 12:119–126.

Frost RO et al. (1993) A comparison of two measures of perfectionism. Personality and Individual Differences. 14:119–126.

Frost RO et al. (1990) The dimensions of perfectionism. Cognitive Therapy and Research. 15:245-261.

Hamachek DE. (1978) Psychodynamics of normal and neurotic perfectionism. Psychology. 15:27–33.

Hamilton TK, Schweitzer RD. (2000) The cost of being perfect: perfectionism and suicide ideation in university students. Australian and New Zealand Journal of Psychiatry. 34:829–835.

Hart BA et al. (1998) The relationship between perfectionism and self-efficacy. Personality and Individual Differences. 24:109-113.

Hewitt PL, Flett GL. (1991a) Dimensions of perfectionism in unipolar depression. Journal of Abnormal Psychology. 100:98–101.

Hewitt PL, Flett GL. (1991b) Perfectionism in the self and social contexts: Conceptualization, assessment, and association with psychopathology. Journal of Personality and Social Psychology. 60:456–470.

Hewitt PL, Flett GL. (1993) Dimensions of perfectionism, daily stress, and depression: A test of the specific vulnerability hypothesis. Journal of Abnormal Psychology. 102:58–65.

Hewitt PL et al. (1996) Perfectionism and depression: Longitudinal assessment of a specific vulnerability hypothesis. Journal of Abnormal Psychology. 105:276–280.

Hewitt PL et al. (1994) Dimensions of perfectionism and suicide ideation. Cognitive Therapy and Research. 18:439–460.

Hewitt PL et al. (1997) Perfectionism and suicide ideation in adolescent psychiatric patients. Journal of Abnormal Child Psychology. 25:95–101.

Hill RW et al. (1997) Perfectionism and the big five factor. Journal of Social Behavior and Personality. 12:257–270.

Hojat M. (1982) Loneliness as a function of selected personality variables. Journal of Clinical Psychology. 38:137–141.

Horowitz LM et al. (1982) The prototype of a lonely person. In: Loneliness: A sourcebook of current theory, research and therapy, LA Peplau, D Perlman (Eds.). New York: Wiley-Interscience; 183-205.

Hsu LR et al. (1987) Cultural and emotional components of loneliness and depression. Journal of Psychology. 121:61–70.

James WH et al. (1981) The persistence of loneliness. Self and other determinants. Journal of Personality. 49:27–48.

Janoff-Bulman R. (1979) Characterological versus behavioral self-blame: Inquiries into depression and rape. Journal of Personality and Social Psychology. 37:1798–1809.

Joiner TE Jr, Schmidt NB. (1995). Dimensions of perfectionism, life stress, and depressed and anxious symptoms: Prospective support for diathesis-stress but not specific vulnerability among male undergraduates. Journal of Social and Clinical Psychology. 14:165–183.

Juster HR et al. (1996) Social phobia perfectionism. Personality and Individual Differences. 21:403–410.

Lynd-Stevenson RM, Hearne CM. (1999) Perfectionism and depressive affect: the pros and cons of being a perfectionist. Personality and Individual Differences. 26:549–562.

McWhirter BT. (1990) Loneliness: A review of current literature with implications for counseling and research. Journal of Counseling and Development. 68:417–423.

Peplau LA, Perlman D (Eds.). (1982). Loneliness: A sourcebook of current theory, research and therapy. New York: John Wiley.

Rokach A et al. (2002) Causes of loneliness in North American and Spain. European Psychologist. 7:70-79.

Russell D et al. (1980) The revised UCLA Loneliness Scale: Concurrent and discriminant validity evidence. Journal of Personality and Social Psychology. 39:472–480.

Saboonchi F et al. (1999) Perfectionism and self-consciousness in social phobia and panic disorder with agoraphobia. Behavior Research and Therapy. 37:799–808.

Slade PD. (1982) Towards a functional analysis of anorexia nervosa and bulimia nervosa. British Journal of Clinical Psychology. 21:167–179.

Terry-Short LA et al. (1995) Positive and negative perfectionism. Personality and Individual Differences. 18:663–668.

Weiss RS (Ed.). (1973) Loneliness: The experience of emotional and social isolation, Cambridge, MA: The MIT Press.

Wyatt R, Gilbert P. (1998) Dimensions of perfectionism: a study exploring their relationship with perceived social rank and status. Personality and Individual Differences. 24:71–79.

Yee AH. (1992). Asians as stereotypes and students: Misperceptions that persist. Educational Psychology Review. 4:95-132.

Journal of Young Investigators. 2004. Volume Ten.
Copyright © 2004 by Youngna Park and JYI. All rights reserved.
 
SEARCH   |   SITE MAP   |   RECENT WEB SITE ADDITIONS          PRIVACY POLICY  |    CONTACT US

JYI is supported by: The National Science Foundation, The Burroughs Wellcome Fund, Glaxo Wellcome Inc., Science Magazine, Science's Next Wave, Swarthmore College, Duke University, Georgetown University, and many others.
Copyright ©1998-2003 The Journal of Young Investigators, Inc.