Abstract
Abstract Although magnitudes of memory improvement for the elderly tend to be larger for a learning skill training and a social support group compared with a waiting list group, the individual variability is sufficiently large to obscure statistical differences in the treatment effect. In our examination of individual variability in the data two possible confounding factors were uncovered: (1) low baseline performers tend to improve regardless of the treatment whereas high baseliners tend not to improve or decline in their posttest performances; (2) high verbal IQ subjects tend to perform well on all memory tests. A lesson learned in this study is that if these two variables are not equally distributed across treatment and control groups spurious results may be obtained.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
