Ed Wants to Know If Students Did Significantly Better on a Test

question 3

Multiple Choice

Ed wants to know if students did significantly better on a test the second time they took it. Which test of statistical significance should Ed use?

• A) Cohen's d
• B) Pearson r
• C) an independent t test
• D) a paired t test

---

Definitions:

Psychodynamic Therapy

A form of depth psychology, the primary focus of which is to reveal the unconscious content of a client's psyche in an effort to alleviate psychic tension.

Painful Memories

Recollections of past events or experiences that are emotionally distressing and may cause psychological discomfort.

Self-Actualization

Fulfillment of one’s potential for love, creativity, and meaning.

Personal Growth

The process of improving oneself through activities that enhance self-awareness, develop talents, and increase potential.