Is Not Knowing the Same as Being Incorrect? An Examination of ‘Don’t Know’ Responses to Questions about Immigrant Population Size

Author(s):  
Daniel Herda
2019 ◽  
Vol 16 (2) ◽  
pp. 329-339
Author(s):  
Daniel Herda

Citizens’ tendency to overestimate the size of immigrant populations has been the subject of several studies over the past three decades. While we have learned a great deal about the extent, causes, and potential consequences of this population innumeracy, our understanding remains static. The current letter offers the first longitudinal consideration of immigrant population size misperceptions with an analysis across a nine-year span in the U.S. This study considers: 1) whether misperceptions have changed over time; 2) how these changes compare to the growth of the actual foreign-born population size; and 3) whether these changes are related to demographic and ideological factors. Results indicate that misperceptions have grown rapidly in the U.S, far outpacing the modest, actual increases across the period. Pooled cross-sectional analyses indicate that demographic factors do not explain the growth in misperceptions. However, the overestimates of politically conservative Americans have grown increasingly extreme over time.


2020 ◽  
Vol 17 (3) ◽  
pp. 411-424
Author(s):  
Daniel Herda

Misperceptions about immigrants are pervasive and have piqued the interest of social researchers given their links to greater intergroup hostility. However, this phenomenon is rarely considered in Canada, with its reputation as a particularly welcoming context. The current study simultaneously considers two such misperceptions: over-estimation of the immigrant population size and mischaracterizations of the typical immigrant’s legal status. This research examines their extent and correlates, as well as consequences for five anti-immigrant policies. Results indicate that legal status mischaracterizations, though rare, are more consequential than population over-estimates. Overall, misperceptions exist in Canada, but not all are equally consequential.


Author(s):  
Delbert E. Philpott ◽  
W. Sapp ◽  
C. Williams ◽  
T. Fast ◽  
J. Stevenson ◽  
...  

Space Lab 3 (SL-3) was flown on Shuttle Challenger providing an opportunity to measure the effect of spaceflight on rat testes. Cannon developed the idea that organisms react to unfavorable conditions with highly integrated metabolic activities. Selye summarized the manifestations of physiological response to nonspecific stress and he pointed out that atrophy of the gonads always occurred. Many papers have been published showing the effects of social interaction, crowding, peck order and confinement. Flickinger showed delayed testicular development in subordinate roosters influenced by group numbers, social rank and social status. Christian reported increasing population size in mice resulted in adrenal hypertrophy, inhibition of reproductive maturation and loss of reproductive function in adults. Sex organ weights also declined. Two male dogs were flown on Cosmos 110 for 22 days. Fedorova reported an increase of 30 to 70% atypical spermatozoa consisting of tail curling and/or the absence of a tail.


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