Lola and George Gruenthal in Neu-Ulm Portraits Family

"When will you come back?" (written in German on verso)

Portrait of four generations of women: Henny Molling nee Meyerhof, Elizabeth Gottschalk, Julie Meyerhof nee Oppenheimer and Therese Gottschalk nee Molling Portraits; Family

From left to right: Henny Molling, born Meyerhof, Elizabeth Gottschalk, Julie Meyerhof born Oppenheimer, and Therese Gottschalk, born Molling.

Ara-Serge Donabedian with Beatrice and Francine Durand at Aenny Catzenstein's 80th birthday; London Portraits; Children

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Yael Bernkopf with her mother Ellen; Israel.

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Personality, health and lifestyle in a questionnaire family study: A comparison between highly cooperative and less cooperative families

The effect of nonresponse on health and lifestyle measures has received extensive study, showing at most relatively modest effects. Nonresponse bias with respect to personality has been less thoroughly investigated. The present study uses data from responding individuals as a proxy for the missing data of their nonresponding family members to examine the presence of nonresponse bias for personality traits and disorders as well as health and lifestyle traits. We looked at the Big Five personality traits, borderline personality disorder (BPD) features, attention-deficit/hyperactivity disorder, Anger, and several measures of health (Body Mass Index, migraine) and lifestyle (smoking, alcohol use). In general, outcomes tend to be slightly more favorable for individuals from highly cooperative families compared to individuals from less cooperative families. The only significant difference was found for BPD features (p = .001). However, the absolute difference in mean scores is very small, less than 1 point for a scale ranging from 0 to 72. In conclusion, survey data on personality, health and lifestyle are relatively unbiased with respect to nonresponse.

The photographer Harry Polk outdoors with his daughter Grace Polk Portraits Family

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Portrait of Hugo Pollak with wife Thekla Lichtenstadt Pollak and their children Hans Pollak and Zdenka (Mimi) Pollak seated outdoors Portraits Family

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Portrait of Hilde Rosenbaum with her father Julius Rosenbaum in military uniform Portraits Family

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Tombstone of the Benno Molling family on the Jewish cemetery; An der Strangriede, Hannover, Germany. Cemeteries Tombs

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Francine Durand on Aenny's 80th birthday; London Portraits Children

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Franz Matthiesen and his mother Aenny Catzenstein nee Gottschalk; Oslo Court, London.

At the time Franz was ill with cancer but Aenny did not know.

Portrait of the family of David Stern and Bernice Stern nee Propper.

Seated: David Stern, Bernice Stern, and Jessica Agosti; left to right: Doreen Stern, her husband Michael Stern, Carol Richardson, her husband Blake Richardson, John Agosti. The baby is Katherine Stern