In an Experiment, a Null Hypothesis States That

question 42

Multiple Choice

In an experiment, a null hypothesis states that:

• A) there will be no difference between the experimental and control conditions.
• B) there will be a difference between the experimental and control conditions.
• C) the independent variable will have a negative effect on the dependent variable.
• D) the independent variable will have a positive effect on the dependent variable.

Comprehend the purposes and roles of hypotheses in research.

Recognize the characteristics of a well-written hypothesis.

Distinguish between different types of hypotheses (null, research, directional, and nondirectional).

Understand the implications of hypothesis testing, including the use of one-tailed tests.

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Definitions:

Psychological Disorders

A wide range of mental health conditions that affect mood, thinking, and behavior, often leading to distress or impairment in daily functioning.

Cognitive-behavioral Therapy

A psychotherapeutic treatment that helps patients understand the thoughts and feelings that influence behaviors to address and manage mental disorders.

Posttraumatic Stress Disorder

A mental health condition triggered by experiencing or witnessing a terrifying event, characterized by flashbacks, nightmares, and severe anxiety.

Randomized Clinical Trial

A randomized clinical trial is a scientific study where participants are randomly assigned to different groups to compare the effects of various treatments or interventions.