假设生成器

输入

Research Topic

Investigating whether the amount of time adolescents spend on image-focused social media platforms affects their body-image satisfaction.

Variable Info

Independent variable: daily time spent on image-focused social media (minutes) Dependent variable: body-image satisfaction score Control variables: age, gender, baseline self-esteem

Hypothesis Type

directional

Num Hypotheses

3

Theoretical Framework

Social Comparison Theory

输出（节选）

H1: Adolescents who spend more daily time on image-focused social media will report lower body-image satisfaction than those who spend less time.
H2: The negative relationship between image-focused social media use and body-image satisfaction will be stronger for adolescents with lower baseline self-esteem.
H3: Following appearance-focused accounts will predict greater upward social comparison, which in turn predicts lower body-image satisfaction.

Each is grounded in Social Comparison Theory's premise that exposure to idealized images drives unfavorable self-evaluation.

输入

Research Topic

Testing whether displaying a product price ending in .99 versus a round number affects online purchase conversion rates.

Variable Info

Independent variable: price format (.99 ending vs. round number) Dependent variable: checkout conversion rate

Hypothesis Type

null

Num Hypotheses

3

Theoretical Framework

Left-Digit Effect

输出（节选）

H0-1: There is no statistically significant difference in checkout conversion rate between products priced with a .99 ending and those priced at a round number.
H0-2: Price format has no effect on average order value across the two conditions.
H0-3: There is no interaction between price format and product category on conversion rate.

These null forms provide the baseline to be rejected if the Left-Digit Effect holds in your A/B test.

输入

Research Topic

Exploring whether offering a four-day work week changes employee productivity at a small marketing agency.

Variable Info

Independent variable: work-week structure (four-day vs. five-day) Dependent variable: weekly billable output

Hypothesis Type

non-directional

Num Hypotheses

3

Theoretical Framework

Job Demands-Resources Model

输出（节选）

H1: There is a significant difference in weekly billable output between employees on a four-day work week and those on a five-day week.
H2: Work-week structure is significantly associated with reported employee engagement.
H3: There is a significant relationship between work-week structure and end-of-week fatigue scores.

Framed non-directionally per the Job Demands-Resources Model, which allows that reduced hours could either help or harm output.