CASE STUDY 27.1 ACTING OUT YOUR DREAMS

question 6

Multiple Choice

CASE STUDY 27.1
ACTING OUT YOUR DREAMS
For Questions , use the following narrative
Narrative: Case study 27.1 summary
A sample of undergraduate psychology students were randomly divided into three groups and asked about their experiences with acting out dreams while dreaming.Group 1 was asked "On how many nights did the following occur in the last year … acting out a dream (while dreaming) ?" Group 2 was asked the same question as Group 1, but with some examples given of "acting out a dream while dreaming", such as crying, laughing, making arm/ leg movements.Group 3 was given a specific list of dream-state actions and asked which of these they had experienced.That is, the subjects in Group 3 did not need to synthesize their own interpretation of the phrase "acting out a dream" or conceive of their own example actions.The proportions of positive responses for Groups 1, 2, and 3 were 35.9%, 76.7%, and 98.2%, respectively.

-{Case study 27.1 narrative} What type of study was this?

• A)A matched-pairs study.
• B)A prospective study.
• C)An observational study.
• D)A randomized experiment.

---

Definitions:

Type II Error

The error that occurs when a false null hypothesis is not rejected, also known as a "false negative."

Probability

The degree to which something is likely to happen, quantified as a number between 0 (impossible) and 1 (certain).

P-Values

Probabilities used to quantify the significance of findings, or the likelihood that the observed data occurred by chance under the null hypothesis.

Null Hypothesis

A statement in statistical analysis that assumes no significant difference or effect, serving as the default assumption to be tested against an alternative hypothesis.