Fichas
Sin título
Fichas del conjunto (12)
- 1The above representation is of an experimental design that would require which statistic, and why:a) independent t-test; because the dependent variable is being measured once between the two social anxiety groups
b) independent t-test; because social anxiety is measured two times within one group
c) paired t-test; because the notation indicates that the same participant is being measured two times
d) paired t-test; because the notation indicates that each participant is paired with another in a different group - 2A between groups design is to _______ as within subjects design is to_______a) the dependent variable is compared between at least two groups; the dependent variable is compared within a group at least two times
b) effect; error
c) between groups variance; within groups variance - 3A researcher hypothesizes that first year students are more anxious than third year students. The researcher compares anxiety levels of first year students to fourth year students. This would require which statistic and why?a) Simple regression, because the researcher is predicting anxiety from year of study
b) Independent t-test, because first and fourth, your students are two distinct groups
c) Paired t-test, because anxiety is being measured two times - 4A paired t-test is to __________ as an independent t-test is to___________a) 1 measurement on two groups; 2 measurements on 1 group
b) 1 dichotomous categorical predictor; 1 continuous outcome variable
c) 2 measurements on 1 group; 1 measurement on two groups - 5A researcher is testing the effects of different levels of power on depression. The researcher manipulates different levels of power by asking participants write about a time when they felt they had very little power and then measures depression. Then the researcher asks the same participants to write about a time when they had a lot of power, and then measures depression. Identify the required statistic and whya) Paired t-test; when the same participants are exposed to two different types of a theoretical variable, it is a within-subjects design
b) Independent t-test; when participants are exposed to two levels of a condition that the experimenter has manipulated, it is a between groups design
c) Paired t-test; when the same participants are exposed to two different levels of a condition that the experimenter has manipulated, it is a within-subjects design - 6A researcher is using a paired t-test to assess mean differences in intelligence (measured as IQ scores, ranging from 0 to 155) when a child is 5 versus when they are 10 yrs of age. Identify the correct set of independent (IV) and dependent (DV) variables.a) continuous IV, Time with two levels (age 5, age 10) and continuous DV intelligence
b) categorical IV, Time with two levels (age 5, age 10) and categorical DV, intelligence
c) categorical IV, Time with two levels (age 5, age 10) and continuous DV intelligence - 7A researcher is using a paired t-test to assess whether students might have more social anxiety than statistics anxiety, both measured on a Likert scale ranging from 0-4. Identify the correct set of independent (IV) and dependent (DV) variablesa) IV, Type of anxiety with two levels (social anxiety vs statistics anxiety) and DV, amount of anxiety reported; both measured on a continuous Likert scale
b) IV, Type of anxiety with two levels (social anxiety vs statistics anxiety) and DV, amount of anxiety reported; both measured on a categorical Likert scale
c) IV, Type of anxiety with two levels (social anxiety vs statistics anxiety) and DV, amount of anxiety reported; IV is categorical, DV is continuous - 8A researcher has collected data on several variables: A. Geographical location, which is coded 1 for those in Western Canada; 2 for those in Eastern Canada; 3 for those in the Prairies; and 4 for those in Ontario and Quebec B. Language spoken, which is coded 1 for English speakers; 2 for French speakers C. How many streaming channels you subscribe to, measured by asking people to indicate the number of channels D. How many cable channels you subscribe to, measured by asking people to indicate the number of channels Which research question below is appropriate for a paired t-test and why?a) Does language spoken impact where you live? Because the independent variable is a categorical predictor with two levels, and the dependent variable is continuous
b) Does the language type spoken affect the number of streaming channels one subscribed to; because a paired t-test pairs the type of categorical variable to a continuous dependent variable
c) Does the amount of channels people subscribe to differ, depending on the type of channel; because a paired t-test compares the means of two continuous variables, similar in type
d) Does the amount of channels people subscribe to differ, depending on the type of channel; because a paired t-test compares the means of two categorical variables, similar in type - 9Which of the following research questions are appropriate for a paired t-test?a) Do people report more anxiety when they're asked about social anxiety, than when asked about Covid anxiety?
b) Are we smarter at 30 then we are at 25?
c) Do people report fewer symptoms when taking Prozac versus Zoloft?
d) All of the above - 10The effect in an independent t-test exists ________ whereas for a paired t-test the effect exists ________ and i know this because _______a) Within people; between two groups; the numerator of the paired t-test compares two group means, but the numerator of the independent t-test is a difference between two scores within a person
b) Between two groups; within two groups; between groups variance indicates affect whereas within group variance indicates error
c) Between two groups; within people; the numerator of the independent t-test compares two group means, but the numerator of the paired t-test is a difference between two scores within a person - 11The Homogeneity of variance assumption would be required when_______ and i know this because________:a) Two different measurements are being compared at two different time points; this assumption compares the variance across two groups and is necessary to ensure the variance is the same
b) When two measurements taken within the same person are being compared under two different conditions; this assumption compares the variance across two groups and is necessary to ensure the variance is the same
c) There is no homogeneity of variance assumption in a paired t-test; this is assumption compares the variance across two groups, and there is only one group in a paired T test - 12What statistic is appropriate to test this research question and why- "What is the effect of different romantic beliefs on self-esteem" where the IVs are Lovefindsaway and Idealization and the DV is self-esteem. All participants have completed these continuous-scale measures.a) one-way ANOVA because it compares more than 2 groups and this question has 3 variables (Lovefindsaway, Idealization, self-esteem)
b) multiple regression because it has two predictors (Lovefindsaway and Idealization) and a DV (self-esteem)
c) paired t-test because it is comparing the effect of two types of measures on how much of that measure is reported.
Información
- Descripción
- Fichas sobre Sin título, creado por Ridhi Nirale el 11/02/2024.
- Creado por
- Ridhi Nirale
- Visitas
- 0
- Valoración