# Introduction
The project is a within-subjects study design, with between subjects exploratory measures in order to compare
an immediate feedback system to an explanation sheet. The conditions are tested on a simulation of a virtual child, in order to help them navigate a conversational model.

All analyses were done using a singular google spreadsheet file with 8 sheets.

## Sheet 1: t-test Knowledge
A student t-test to test the participants' knolwedge of the covnersational model. A primary measure.

Column A   : Participant           = Every participant who completed the experiment, and whose open question was graded using double coding, anonymized to gender and age.
Column B   : TOTAL POINTS ES       = The total amount of points a participant received for the knowledge questions on the Explanation Sheet questionnaire.
Column C   : TOTAL POINTS FEEDBACK = The total amount of points a participant received for the knowledge questions on the Feedback questionnaire.
Column F   : Score feedback - F1   = The knowledge scores of the questionnaires of the Feedback condition, of the participants whose 1st experiment was with the Feedback condition. With the mean and standard deviation given below.
Column G   : Score ES - F1         = The knowledge scores of the questionnaires of the Explanation Sheet condition, of the participants whose 1st experiment was with the Feedback condition. With the mean and standard deviation given below.
Column J   : Score ES - ES1        = The knowledge scores of the questionnaires of the Feedback condition, of the participants whose 1st experiment was with the Explanation Sheet condition. With the mean and standard deviation given below.
Column K   : Score feedback - ES1  = The knowledge scores of the questionnaires of the Explanation Sheet condition, of the participants whose 1st experiment was with the Explanation Sheet condition. With the mean and standard deviation given below.
Column N   : FEEDBACK              = Combined list of scores from column F and K. With mean and standard deviation given below.
Column O   : ES                    = Combined list of scores from column G and J. With mean and standard deviation given below.
Column P   : P-value               = The P-value obtained by performing the two-tailed t-test on columns N and O.
Column Q   : sample size           = The sample size of the 25 participants.
Column R   : Pooled STDEV          = The pooled standard deviation from the bottom of columns O and P.
Column S   : t-value               = The calculated t-value using the means from columns O and P, the pooled standard deviation and the sample size.
Column T   : Cohen's d             = The calculated Cohen's d value.

## Sheet 2: t-test IMI Usefulness
A student t-test to measure the participants' perceived usefulness of the condition used during the experiment. A primary measure
IMI stands for Intrinsic Motivation Inventory and can be found at: https://selfdeterminationtheory.org/intrinsic-motivation-inventory/

Column B   : Feedback              = The scores of the IMI measuring perceived usefulness of the Feedback condition. With the mean, standard deviation, and mean per point given below.
Column C   : ES                    = The scores of the IMI measuring perceived usefulness of the Explanation Sheet condition. With the mean, standard deviation, and mean per point given below.
Column D   : P-VALUE               = The P-value obtained by performing the two-tailed t-test on columns B and C.
Column E   : Cohen's d             = The calculated Cohen's d value.
Column F   : sample size           = The sample size of all 34 participants.
Column G   : Pooled STD            = The pooled standard deviation of column B and C.
Column H   : t-value               = The calculated t-value using the means from columns B and C, the pooled standard deviation and the sample size.

## Sheet 3: t-test IMI Enjoyment
A student t-test to measure the participants' interest/enjoyment of the condition used during the experiment. An exploratory measure.
IMI stands for Intrinsic Motivation Inventory and can be found at: https://selfdeterminationtheory.org/intrinsic-motivation-inventory/

Column B   : Feedback              = The scores of the IMI measuring enjoyment of the Feedback condition. With the mean, standard deviation, and mean per point given below.
Column C   : ES                    = The scores of the IMI measuring enjoyment of the Explanation Sheet condition. With the mean, standard deviation, and mean per point given below.
Column D   : P-VALUE               = The P-value obtained by performing the two-tailed t-test on columns B and C.
Column E   : Cohen's d             = The calculated Cohen's d value.
Column F   : sample size           = The sample size of the 25 participants.
Column G   : Pooled STD            = The pooled standard deviation of column B and C.
Column H   : t-value               = The calculated t-value using the means from columns B and C, the pooled standard deviation and the sample size.


## Sheet 4: Double Coding
The knowledge section contained several open questions, which were checked using double coding.

Column A   : Participant           = ID of the participant.
Columns B-E: Q1-Q4                 = The open ended knowledge questions with the answers each participant gave. In the original Dutch version.
Columns G-J: Points Q1-Q4          = The score researcher 1 awarded each participant's response to the questions. the top of each column also denotes the maximum number of points that can be earned in the question.
Columns L-O: Points Q1-Q4          = The score researcher 2 awarded each participant's response to the questions. the top of each column also denotes the maximum number of points that can be earned in the question.
Columns Q-T: Delta Q1-Delta Q4     = The Delta's for each question between the two researchers which is needed to calculate Spearman's Rho later
Columns V-Y: Final Q1-Final Q4     = The final score for each open knowledge question for each participant.

## Sheet 5: Spearman's Rho
A follow-up of sheet 4, Spearman's Rho was calculated over every open question.

Columns A-C-E-G: Points Q1-Q4 R1   = The score researcher 1 awarded each participant's response to the questions. The top of each column also denotes the maximum number of points that can be earned in the question.
Columns B-D-F-H: RANK Q1-Q4 R1     = The ranking of each participant's response compared to one another, taking the gradings of the 1st researcher.
Columns J-L-N-P: Points Q1-Q4 R2   = The score researcher 2 awarded each participant's response to the questions. The top of each column also denotes the maximum number of points that can be earned in the question.
Columns K-M-O-Q: RANK Q1-Q4 R2     = The ranking of each participant's response compared to one another, taking the gradings of the 2nd researcher.
Columns S-V: D Q1-Q4               = The delta's of the ranks between the two researcher.
Columns X-AA: D^2 Q1-Q4            = The values of columns S-V squared.
Columns AC-AF: SR 1Q-Q4            = The calculated Spearman's Rho for each question.

## Sheet 6: Comparison Test
A sheet having all the final results of each and every final result of all the different questions from the questionnaires.

Column A: Person - 1               = A list of the final 25 participants whose knowledge scores could be compared to their perceived usefulness scores.
Column B: Knowledge ES - 1         = The final knowledge scores of the 25 participants. From the Explanation Sheet condition.
Column C: PU ES - 1                = The corresponding perceived usefulness IMI scores of the 25 participants. From the Explanation Sheet condition.
Column E: Knowledge Feedback - 1   = The final knowledge scores of the 25 participants. From the Feedback condition.
Column F: PU Feedback - 1          = The corresponding perceived usefulness IMI scores of the 25 participants. From the Feedback condition.
Column H: Person - 2               = A list of the 18 participants who had filled in the Enjoyment IMI.

Column I: Knowledge ES - 2         = The final knowledge scores of the 18 participants. From the Explanation Sheet condition.
Column J: PU ES - 2                = The corresponding perceived usefulness IMI scores of the 18 participants. From the Explanation Sheet condition.
Column K: Enjoyment ES - 2         = The corresponding enjoyment IMI scores of the 18 participants. From the Explanation Sheet condition.
Column I: Knowledge Feedback - 2   = The final knowledge scores of the 18 participants. From the Feedback condition.
Column J: PU Feedback - 2          = The corresponding perceived usefulness IMI scores of the 18 participants. From the Feedback condition.
Column K: Enjoyment Feedback - 2   = The corresponding enjoyment IMI scores of the 18 participants. From the Feedback condition.

## Sheet 7: Cronbach's Alpha PU
The IMI's are 7-point Likert scales. To test how valid the IMI's are, we are calculating the Cronbach's Alpha by comparing each participants response to each question.

Column A: ID                       = The ID of the 34 participants. Who filled in the perceived usefulness IMI.
Columns B-H: Q1-Q7                 = The value that each participant gave for the particilar question of the IMI.
Column I: Total                    = The sum of columns B-H for each participant.
Columns J-P: Var Q1 - Var Q7       = The variance of columns B-H.
Column Q: Var Total                = The variance of column I.
Column R: Sum Q1-Q7                = The sum of columns J-P.
Column S: Cronbach's Alpha         = The calculated Cronbach's Alpha.

## Sheet 8: Cronbach's Alpha Enjoyment
The IMI's are 7-point Likert scales. To test how valid the IMI's are, we are calculating the Cronbach's Alpha by comparing each participants response to each question.

Column A: ID                       = The ID of the 25 participants. Who filled in the enjoyment IMI.
Columns B-H: Q1-Q7                 = The value that each participant gave for the particilar question of the IMI.
Column I: Total                    = The sum of columns B-H for each participant.
Columns J-P: Var Q1 - Var Q7       = The variance of columns B-H.
Column Q: Var Total                = The variance of column I.
Column R: Sum Q1-Q7                = The sum of columns J-P.
Column S: Cronbach's Alpha         = The calculated Cronbach's Alpha.



