Hypothesis tests

Do people who meditate have lower anxiety scores than those who do not? (40 people who meditate regularly and 40 don't)

A nutritionist measures participants' cholesterol levels before and after following a vegan diet for 3 months.

Does a new CBT program reduce depression-measuring participants’ depression scores before and after 8 weeks of therapy

Do athletes who receive a motivational speech before a game perform better than those who do not? (Two conditions)

What are the effects of different levels of exercise (sedentary, moderate, and high) on stress levels?

Do students perform better on a math test when using a calculator versus when solving problems by hand? (all do both)

Do men and women differ in their levels of risk-taking behavior? Average risk taking scores for men and women collected

Is UCSC students memory score higher the general population, whose mean is 75 with a known standard deviation of 10.

Does average self-esteem score of students at UCSC differ from the national average of 50?

What are the effects of three different study techniques (flashcards, summarization, and rereading) on exam scores?

Do students at UCSC sleep significantly fewer hours than the general adult population, who average 7 hours per night?

Does caffeine affect reaction time? 30 participants in caffeine group, 30 in no-caffeine group and compare reaction time

Does average SAT score of UCSC students (1200) differ from the national average of 1050 SAT score with SD of 50?

Is the average IQ of students at UCSC different from the national average of 100, SD 10?

A clinical psychologist measures participants’ anxiety levels before and after a 6-week mindfulness training program.

Does stress levels of employees in a company vary from average stress score of the general working pop?

Does job satisfaction differ among employees working in different areas (Sales, HR, Marketing, & Engineering).