A study conducted to identify symptoms of anxious school age ...

[jman1234]

A study conducted to identify symptoms of anxious school age children reported the following data:Test ScoresScales X SDWithdrawn 67.4, 10.9Somatic complaints 71.8, 10.2Attention problems 62.7, 7.5Anxiousness 68.2, 10.
 
  4Social interaction problems 61.4, 11.1On which scale did the children have the most variability in their scores? 1. Social interaction problems.
  2. Attention problems.
  3. Withdrawn.
  4. Somatic complaints.

Question 2

The independent variable in the research question, What is the effect of noise levels on postoperative pain and blood pressure fluctuations in ICU patients? is which of the following?
 
  A) Blood pressure
  B) ICU patients
  C) Noise levels
  D) Postoperative pain

[zenzy]

Answer to Question 1

1
Rationale 1: The more the variability in scores, the greater the standard deviation. Therefore, the scale with the largest SD, social interaction problems, represents the scale with the most variability in scores.
Rationale 2: Attention problems have a lower SD, therefore, less variability in scores.
Rationale 3: Withdrawn has a lower SD, therefore, less variability in scores.
Rationale 4: Somatic complaints have a lower SD, therefore, less variability in scores.

Answer to Question 2

C
Feedback:
The dependent (or outcome) variable is the behavior, characteristic, or outcome the researcher is interested in explaining, predicting, or affecting (the O in the PICO scheme). Postoperative pain, blood pressure, and being a patient in the ICU are the dependent variables. The independent variable is the presumed cause of or influence on the dependent variables. The independent variable is noise levels. The independent variable corresponds to the I and the C components in the PICO scheme.

[jman1234]

TYSM

[ebonylittles]

Gracias!