Evaluating Research

Question 1

Measurement error

Answer 1

• The difference
• Between the measured value and the true value

Question 2

Systematic errors

Answer 2

• Errors in data
• Differ from the true value
• By a consistent amount
• Affect the accuracy

Question 3

Random errors

Answer 3

• Errors in data
• That are unsystematic
• Occur due to chance
• Affect the precision

Question 4

Personal error

Answer 4

• Mistake, miscalculation, or observer error
• Made when conducting research

Question 5

Repeatability

Answer 5

• The extent
• To which successive measurements or studies
• Produce the same results
• When carried out under identical conditions

Question 6

Reproducibility

Answer 6

• The extent
• To which successive measurements or studies
• Produce the same results
• When repeated under different conditions

Question 7

Internal validity

Answer 7

• The extent
• To which an investigation
• Truly measures/investigates what it claims to

Question 8

External validity

Answer 8

• The extent
• To which the results of an investigation
• Can be applied to similar individuals in different settings