Under what circumstances is a within-subjects design not a good choice for a research study?

What will be an ideal response?


A within-subjects design is not a good choice when one or more of the treatments has a permanent or long lasting effect on the participants which may influence their scores in later treatments. In this situation, the results are guaranteed to be distorted by carry over effects and it will be essentially impossible to determine which differences were caused by the treatments and which were caused by carry over effects. Also, it is often a good choice to use a between-subjects design in situations where individual differences are small. In this case, the individual differences will not generate real problems for the between-subject design, and this design completely eliminates the threats from time-related factors that are always a part of a within-subjects study.

Psychology

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When describing abnormal behavior, mental health professionals do not use the term _____, which is a _____ term related to responsibility for one's actions

a) mental illness; psychiatric b) insane; legal c) crazy; legal d) psychotic; medical

Psychology

Which of the following statements about the timing and variations in puberty is true?

A. Weight of an individual is unrelated to pubertal onset. B. Two boys of the same chronological age will generally complete the pubertal sequence at the same time. C. Genes have little to do with when and how puberty develops. D. Menarche is considered within the normal range for girls if it appears between the ages of 9 and 15.

Psychology

The quieting, or focusing of one’s mind in a systematic manner is called

A) passive volition. B) introspection. C) hypnosis. D) meditation.

Psychology

At work, Julie is often told, "Get out of the way, this is man's work, little woman." Her coworkers will often belittle her when she makes a tiny mistake, but let it slide when another man makes a similar mistake. Julie is experiencing ________ sexism

a. hostile
b. puerile
c. malignant
d. benevolent

Psychology