4.1. Evaluation of the Effect of Product Placement
A paired
t-test was conducted on the pre-test and post-test results to analyze Generation Z consumers’ cognition, attitudes, and purchase intentions regarding product placement in famous Chinese animations (
Table 5). The results showed that all significance values were less than 0.001, indicating that Generation Z consumers’ cognition, attitudes, and purchase intentions toward the implanted brand were effectively enhanced after observing the implanted product.
To analyze the product placement effect of brands with varying popularities and based on the results of the Generation Z consumers’ initial cognition in the pre-test questionnaire, the types of brands implanted via product placement were divided into high-profile brands (with an initial cognition level ≥ 3) and low-profile brands (with an initial cognition level < 3).
The results demonstrated that for high-profile brands, before the participants were subjected to product placement, 65.3% had clear initial cognition of the brand, 60.2% believed that the brand possessed a good initial attitude, and 59.9% had an initial post-purchase intention for the brand. Conversely, for low-profile brands, the initial cognition ratio of the participants was 15.7%, the brand initial attitude ratio was 13.9%, and the initial purchase intention ratio was 12.5%.
A paired
t-test was used to analyze the data from the pre-test and post-test questionnaires for high-profile brands, and the results are shown in
Figure 2. Through comparison, it was found that the participants’ cognition of the implanted brand increased by 0.14 after witnessing product placement (sig.
p = 0.006), but their attitude toward the brand decreased by 0.14 (sig.
p = 0.000). Moreover, the average post-purchase intention decreased by 0.07 after subjection to product placement (sig.
p = 0.09).
Through a comparison of the data from the pre-test and post-test questionnaires for low-profile brands (
Figure 3), it was found that after watching the animations, the participants’ cognition of the implanted brands increased by 1.50 (sig.
p = 0.000), attitudes increased by 0.63 (sig.
p = 0.000), and the average post-purchase intention increased by 0.57 (sig.
p = 0.000). This finding reflects a difference from the product placement effect of high-profile brands.
Contrary to what has been shown in previous studies, the effect of product placement for high-profile brands was weaker than that for low-profile brands, refuting H1.
This is because of the limited capacity available for product placement in animation. When the audience notices the brand logo of a high-profile brand in a prominent position in animation, they immediately associate it with the imminent appearance of product placement, which can create a “disturbing the plot” phenomenon [
49]. Simultaneously, if the implantation form is not appropriate, such as one that has low integration with the plot, a long implantation time, or excessively prominent implantation images, it will affect the dissemination quality of the product placement and the audience’s perception of the animation, causing aversion to the product and reducing favorability and purchase intention with respect to the brand [
50]. Nevertheless, due to the popularity of high-profile brands, consumer preferences and purchase intentions are relatively fixed [
51]. Therefore, the negative effects of the inappropriate placement of products made by high-profile brands in a single animation are relatively limited.
Most importantly, audiences are curious about low-profile brands [
52]. As long as the implantation method of a low-profile brand does not excessively interfere with the plot, the audience will consider it a part of the plot and have a high tolerance for it [
15]. Simultaneously, when a low-profile brand appears in a prominent position, it can rapidly transmit core information about the product to the audience, improving the brand’s popularity and significantly enhancing the audience’s cognition, attitudes, and purchase intentions regarding the brand in question.
Further, notably, for both the pre-test and post-test results, the participants’ post-cognition scores were higher than their post-attitude scores, and the post-attitude scores were higher than the post-purchase intention scores (
Figure 4). This is in line with the research on purchasing behavior in marketing [
53]. When consumers want to buy products, they first form a general attitude toward them, conduct an overall evaluation of their favorability and acceptance, and generate their final post-purchase intention based on the evaluation of risks and benefits.
4.2. Correlation Analysis
Correlation analysis was conducted using SPSS to examine the relationship between Generation Z consumers’ cognition, attitudes, and purchase intentions regarding product placement in famous Chinese animations.
Table 6 shows the correlation analysis results for initial cognition, initial attitude, and initial purchase intention for a total sample size of 1080. The results demonstrated that initial cognition, initial attitude, and initial purchase intention were strongly positively correlated. The correlation factor between initial attitude and initial purchase intention was greater than 0.8, demonstrating that initial attitude exerted a significant positive impact on the initial purchase intention.
A similar relationship was found between post-cognition, post-attitude, and post-purchase intention (
Table 7). The total sample size was 1080. The correlation analysis results showed that post-attitude and post-purchase intention were positively and moderately correlated with post-cognition, respectively. A significant positive correlation was found between post-attitude and post-purchase intention, similarly to the corresponding relationship between initial attitude and initial purchase intention.
According to the correlation analysis results, there was a correlation between cognition, attitude, and purchase intention, where H2a, H2b, and H2c were deemed correct. It is worth mentioning that attitude and purchase intention had a strong correlation, which was similar to previous research results [
40]. This result is in line with the psychology of consumers: consumers’ understanding of products is limited. To reduce the uncertainties involved in purchasing, consumers will form a brand “initial cognition set” according to their perceptions and choose the products and services they need from this set. When consumers choose products from within the brand’s initial cognition set, the preferences formed based on brand cognition and attitude affect their purchase intentions [
54], and consumers are more willing to choose a brand with high favorability. Therefore, product placement should be integrated into the storyline and connected to positive characters or plots [
4] so that the audience can have a favorable impression of the implanted product or brand and further stimulate purchase intention.
4.3. Mathematical Model for Evaluating Product Placement Effect
The previous analysis demonstrated that product placement can affect Generation Z consumers’ post-cognition, post-attitude, and post-purchase intention toward a brand, indicating that post-cognition, post-attitude, and post-purchase intention can be used to quantitatively describe the effect of product placement. However, because of the correlation between post-cognition, post-attitude, and post-purchase intention, it was not possible to simply use linear regression to obtain a model involving the effect of product placement and these three variables. Therefore, factor analysis was conducted to obtain the mathematical relationship between the product placement effect and post-cognition, post-attitude, and post-purchase intention.
According to Kaiser and Rice [
55], the Kaiser–Meyer–Olkin (KMO) measure and Bartlett’s test of sphericity can effectively reveal whether a sample set is suitable for factor analysis. For this research, the KMO value was 0.673, and the significance value of Bartlett’s test was 0.000 (
Table 8), demonstrating that the sample data were normally distributed and suitable for factor analysis. This also indicates that there is a meaningful relationship between post-cognition, post-attitude, and post-purchase intention.
Based on the communalities list (
Table 9), the extracted variance of all three variables was larger than 0.6, which indicated that it was acceptable to conduct factor analysis and that the majority of information could remain with acceptable loss. According to the total variance explained list shown in
Table 8, only one initial eigenvalue was larger than 1. This demonstrated that only one common factor—the product placement effect—was used to summarize post-cognition, post-attitude, and post-purchase intention.
The component scores for post-cognition, post-attitude, and post-purchase intention are summarized in
Table 10, and the loading plot and score plot are shown in
Figure 5. To obtain the weights of these three indices, it was necessary to normalize and standardize the component scores.
Standardization was used to unify the normalized component scores such that the sum of the three normalized component scores was equal to one. The results obtained after standardization are listed in
Table 9. The weights for post-cognition, post-attitude, and post-purchase intentions were 0.303, 0.351, and 0.346, respectively. The equation used to describe the product placement effect is as follows:
Equation (1) establishes an evaluation model for predicting the effect of product placement in animations based on cognition, attitude, and purchase intention.
Through comparing the coefficients of variables in Equation (1), it was determined that post-attitude was the most important factor determining the product placement effect, followed by post-purchase intention, and the weight of post-cognition was the smallest. This proves that for product placement in animation, Generation Z consumers have relatively high acceptance, and product placement can provoke the consumption desire of a group with considerable consumption power. To enhance an audience’s attitude toward a brand, it is important to adopt diverse forms of product placement rather than relying on repeated background implantation or the high-frequency display of brand names [
30]. Therefore, we suggest that the over-disclosure of product placement in animation should be avoided. Additionally, combining product placement with storylines or closely interacting with the protagonist can help enhance the audience’s attitude toward the implanted brand and further enhance the effect of product placement [
49].