CPT Research Methods & Evidence-Based Practice 2

Question 1

A tutor wants to determine whether a new vocabulary strategy is effective. Which research design best establishes cause and effect?

Accepted Answer

Randomized controlled trial

Answer

A randomized controlled trial randomly assigns participants to groups, allowing causal conclusions about the intervention's effect.

Question 2

Which term describes the extent to which a study's findings can be generalized to other students and settings?

Accepted Answer

External validity

Answer

External validity refers to how well study results apply beyond the specific sample and setting studied.

Question 3

A tutor reads a meta-analysis on reading fluency interventions. What is a key advantage of meta-analyses over single studies?

Accepted Answer

They use larger, combined sample sizes for stronger conclusions

Answer

Meta-analyses pool data across multiple studies, increasing statistical power and yielding more reliable effect size estimates.

Question 4

When a measurement tool consistently produces similar scores across repeated administrations, it demonstrates:

Accepted Answer

Test-retest reliability

Answer

Test-retest reliability measures the consistency of scores obtained from the same instrument at different time points.

Question 5

A tutor notices that students who received phonics instruction outperformed controls, but the control group had less experienced teachers. This is an example of:

Accepted Answer

A confounding variable

Answer

Teacher experience is a confounding variable that co-varies with the intervention and could explain the outcome independently.

(CPT) Certified Private Tutor Practice Test

(CPT) Certified Private Tutor Practice Test

CPT Research Methods & Evidence-Based Practice 2