Sandra strongly believes that attending daycare is detrimental to children's development so she decides to write her psychology term paper on this topic. she does a literature search and finds several sources supporting her opinion, but she finds that the majority of research indicates that children attending daycare experience healthy development. she writes a paper using the sources that find negative associations with daycare attendance. this is an example of
a. confirmation bias
b. confounding variable
c. correlational research
d. observer bias