Answer the following questions please The statement On avera

Answer the following questions please

The statement \"On average, older adults have the same response time as younger adults\" is an example of: O effect size. statistical significance. the null hypothesis. the research hypothesis. A clinical researcher was interested in determining whether his interventions were effective in minimizing depression symptoms among his participants. To assess the effectiveness of his treatment program, he administered a depression inventory prior to his treatment and after his treatment. He hypothesized that depression scores would be lower at time two compared to time one. He then compared the mean differences between the two groups and found that his treatment was effective. The independent variable in this study is: depression scores gender age time

Solution

null hypothesis

time