Types of hypothesis

The participants who eat chocolate before a test will achieve a significant higher score than those participants who do not.

• Null hypothesis

• Directional hypothesis

• Non directional hypothesis

• Alternative hypothesis

Drinking caffeine will alter how much sleep you will et in hours.

• Null hypothesis

• Directional hypothesis

• Non directional hypothesis

• Alternative hypothesis

Eating cheese before bed affects the number of nightmares you have

• Null hypothesis

• Directional hypothesis

• Non directional hypothesis

• Alternative hypothesis

Dutch people do not differ from English people in height

• Null hypothesis

• Directional hypothesis

• Non directional hypothesis

• Alternative hypothesis

There will be a difference in how many numbers are correctly recalled by children and adults.

• Null hypothesis

• Directional hypothesis

• Non directional hypothesis

• Alternative hypothesis

Athletes who have a training partner are likely to score higher on a questionnaire measuring motivation levels than athletes who train alone.

• Null hypothesis

• Directional hypothesis

• Non directional hypothesis

• Alternative hypothesis

There is a relationship between personality type and job success.

• Null hypothesis

• Directional hypothesis

• Non directional hypothesis

• Alternative hypothesis

There is a positive relationship between extra coaching and academic achievement.

• Null hypothesis

• Directional hypothesis

• Non directional hypothesis

• Alternative hypothesis