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Grimstvedt and colleagues (2010) examined the effect of placing signs encouraging the use of stairs near elevators. Based on their design, Liu Wei designs a study for his campus. He selects four buildings and starts by measuring elevator and stair use in those buildings for a month. He then posts signs encouraging the use of stairs near the elevators and measures elevator and stair use in the buildings for another month.
Identify the true and false statements about Liu Wei's study.
a. Liu Wei is utilizing a stable-baseline design.
b. Liu Wei's study involves a within-groups design.
c. Liu Wei's study design has high external validity.
d. Liu Wei's study is a quasi-experiment.

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Martebi

Based on the above:

True Statement(s):

  • Liu Wei is utilizing a stable-baseline design.
  • Liu Wei's study involves a within-groups design.

False Statement(s):

  • Liu Wei's study design has high external validity.
  • Liu Wei's study is a quasi-experiment.

What is a within group design?

A small-N design in which a researcher watches behavior for a long baseline time before starting a therapy or other intervention; if behavior during the baseline is stable, the researcher is more assured of the treatment's effectiveness.

Therefore, All participants participate in each condition in a design that is conducted within subjects or groups. It contrasts with a between-subjects design, in which each participant is exposed to only one condition.

Learn more about within-groups design from

https://brainly.com/question/28131179

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