Scenario 1 (Child and Adolescent Development)* The question was investigated of whether (a) age at which infants start to crawl is related to (b) seasonal temperature six months after birth. "Six months after birth" was targeted as the period in which babies typically first try crawling. For a large sample of babies, (a) time at which crawling actually began and (b) average monthly temperature six months after the birth month were collected. The data are shown below (also found in the Data Set Scenario 1 Excel file). Month Average Age Starting to Crawl (weeks) Average Temperature 6 Months After Birth Month (in units Fahrenheit) January February March 29.84 66 30.52 73 29.70 72 April 31.84 63 May 28.58 52 June 31.44 39 July 33.64 33 August 32.82 30 September October 33.83 33 33.35 37 November December 33.38 48 32.32 57 Adapted from this study: Benson, J. B. (1993). Season of birth and onset of locomotion: Theoretical and methodological implications. Infant Behavior and Development, 16, 69-81.