FINAL FINAL STUDY

Question 1

Nominal data

Answer 1

Qualitative, no ranking or order

• mode

Question 2

Ordinal data

Answer 2

Sequence, irregular gaps between levels

• Mean, IQR

Question 3

Interval data

Answer 3

Even steps between gaps, zero does not mean zero

• Mean, SD

Question 4

Ratio data

Answer 4

Even steps between gaps, zero means zero

• Mean, SD

Question 5

Standard deviation

Answer 5

Dispersion of scores from the mean, higher the standard deviation the more variation of data

Question 6

Confidence intervals

Answer 6

2x SD from the mean, if two confidence intervals do not overlap means statistical significance

Question 7

P-value

Answer 7

Statistical significance, if p-value is below 0.05 data is statistically significant and difference in values is not due to chance

Question 8

R-value

Answer 8

Measure of the linear relationship between two variables, +1 = positive, 0 = no relationship, -0 = negative

Question 9

Type 1 error

Answer 9

False positive

Question 10

Type 2 error

Answer 10

False negative

Question 11

Parametric data

Answer 11

• Large sample size
• Interval/ratio data
• Normally distributed

Question 12

Non-parametric data

Answer 12

• Nominal/ordinal data
• Less statistical power
• Distribution unclear
• Small sample size

Question 13

CNS

Answer 13

Composed of the brain and spinal cord, responsible for sending and recieving messages from the brain to the PNS.

Question 14

PNS

Answer 14

Responsible for sending and recieving messages from senses and moving them to muscles and glands

Somatic nervous system: skeletal (voluntary)
Autonomic nervous system: glands and organs (involuntary)

Question 15

Autonomic nervous system

Answer 15

Sympathetic: activates the body when alertness is required
Parasympathetic: maintains homeostasis