{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

chapter 2a - • Many times participants drop out and the...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
THE SCIENCE OF LIFE-SPAN DEVELOPMENT TIME SPAN OF RESEARCH Cross-Sectional Approach Cross-sectional approach is a research strategy in which individuals of different ages are compared at one time. The groups can be compared with respect to a variety of dependent variables: IQ, memory, peer relations, etc. The main advantage is that the researcher doesn’t have to wait for individuals to become older. Longitudinal Approach Longitudinal approach is a research strategy in which the same individuals are studied over a period of time, usually several years. These studies provide a wealth of information about important issues as stability and change in development and importance of early experience for later development. Their drawbacks are that they are expensive and take lots of time.
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: • Many times participants drop out and the study will become biased. Sequential Approach • Sequential approach is combined cross-sectional and longitudinal design. • This approach starts with cross-sectional and includes subjects of different ages. • The same are tested again, which brings in the longitudinal study. • This approach is complex, expensive, and time consuming, but does provide information that is impossible to obtain from just one of the studies alone. Cohort Effects • Cohort effects are effects due to a person’s time of birth, era, or generation but not actual age. • They are important because they can powerfully affect the dependent measure in a study concerned with age....
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern