Identify the appropriate hypothesis test (aka, which inferential statistic) for each of the following research situations (z for X, z for M, single sample t, independent-measures t, repeated-measures t, independent ANOVA, repeated ANOVA, Pearson correlation, Spearman correlation, Regression, Chi-Square). If two are equally appropriate, list both. 1. A researcher determines that 8% of the males enrolled in Introductory Psychology have some form of color blindness, compared to only 2% of the females. Is there a significant relationship between color blindness and gender? 2. A researcher conducts a cross-sectional developmental study to determine whether there is a significant difference in vocabulary skills between 8-year-old and 10-year-old children. Two groups of children are used (8-year-olds and 10-year-olds) and the researchers make sure the children are similar on all important individual differences. 3. A researcher would like to determine whether a 4-week therapy program produces significant changes in behavior. A group of 25 participants is measured before therapy, at the end of therapy, and again 3 months after therapy. 4. A researcher records the daily sugar consumption and the activity level for each of 20 children enrolled in a summer camp program. The researcher would like to determine whether there is a significant relationship between sugar consumption and activity level. 5. A researcher would like to see if high school GPA and standardized college entrance exams scores (ACT) really predict college academic performance. 6. A research study compares the average problem-solving ability for 5-year-olds, 6-year-olds, and 7-year-old boys and no matching is involved. 7. A researcher examines how different the students in Mrs. Smith’s 4th grade class are based on IQ compared to the national average IQ for 4th graders (national average = 98). 8. A researcher compares the level of happiness between couples with children and couples without children
Identify the appropriate hypothesis test (aka, which inferential statistic) for each of the following research situations (z for X, z for M, single sample t, independent-measures t, repeated-measures t, independent ANOVA, repeated ANOVA, Pearson correlation, Spearman correlation, Regression, Chi-Square). If two are equally appropriate, list both.
1. A researcher determines that 8% of the males enrolled in Introductory Psychology have some form of color blindness, compared to only 2% of the females. Is there a significant relationship between color blindness and gender?
2. A researcher conducts a cross-sectional developmental study to determine whether there is a significant difference in vocabulary skills between 8-year-old and 10-year-old children. Two groups of children are used (8-year-olds and 10-year-olds) and the researchers make sure the children are similar on all important individual differences.
3. A researcher would like to determine whether a 4-week therapy program produces significant changes in behavior. A group of 25 participants is measured before therapy, at the end of therapy, and again 3 months after therapy.
4. A researcher records the daily sugar consumption and the activity level for each of 20 children enrolled in a summer camp program. The researcher would like to determine whether there is a significant relationship between sugar consumption and activity level.
5. A researcher would like to see if high school GPA and standardized college entrance exams scores (ACT) really predict college academic performance.
6. A research study compares the average problem-solving ability for 5-year-olds, 6-year-olds, and 7-year-old boys and no matching is involved.
7. A researcher examines how different the students in Mrs. Smith’s 4th grade class are based on IQ compared to the national average IQ for 4th graders (national average = 98).
8. A researcher compares the level of happiness between couples with children and couples without children
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